CN101523634A - Organic lighting device and lighting equipment - Google Patents

Abstract

The invention relates to an organic lighting device and lighting equipment comprising said lighting device. The invention also relates to an optical display device, an emergency lighting system, an auThe invention relates to an organic lighting device and lighting equipment comprising said lighting device. The invention also relates to an optical display device, an emergency lighting system, an automotive interior lighting system, a piece of furniture, a structural material, a glazing pane and a display comprising said lighting device or a lighting equipment having said lighting device.tomotive interior lighting system, a piece of furniture, a structural material, a glazing pane and a display comprising said lighting device or a lighting equipment having said lighting device.

Description

Organic Light Emitting Devices and Lighting Devices

The present application relates to an organic light emitting device and a lighting device having the same. The present application also relates to optical displays, emergency lighting, vehicle interior lighting, furniture components, building materials, glazing and displays with such a luminous means or with a lighting device comprising such a luminous means.

Publications US 6,554,443 and US 6,626,554 describe a light emitting device with a semiconductor-based light emitting diode as light source.

However, semiconductor-based light-emitting diodes are generally more expensive. In particular, the costs of semiconductor-based light-emitting diodes increase with an increase in the light-emitting area. Large-area semiconductor-based light-emitting diodes are therefore particularly expensive and are rarely produced because of their small profit margins. Furthermore, semiconductor-based light-emitting diodes are typically constructed to be neither flexible nor transparent to visible light.

It is an object of the invention in particular to provide an inexpensive light emitting device.

Another object of the present invention is to provide a light-emitting device capable of transmitting visible light.

Another object of the invention is in particular to provide a lighting device suitable for representing information, for example in open spaces.

A further object of the invention is, inter alia, to provide a lighting device which can be used as glazing, for example in open spaces or in furniture components, and can also be used as a lighting device.

Another object of the invention is, inter alia, to provide a light emitting device which can be used as a reflector and/or as an illumination source.

Another object of the invention is in particular to provide a lighting device suitable for representing information, for example in a vehicle.

Another object of the invention is, inter alia, to provide a lighting device that can be used in a decorative element.

A further object of the invention is, inter alia, to provide a lighting device for inspection mirrors.

Another object of the present invention is to provide a flexible light emitting device.

Another object of the present invention is to provide a lighting device with a light emitting device.

Another object of the invention is, inter alia, to provide a lighting device with light emitting means, the light of which can induce variable color perception.

At least one object of some embodiments of the present invention is, inter alia, to provide storage furniture having a storage element comprising said light emitting means. In this way, for example, the area of the storage furniture and its surroundings can be illuminated.

According to at least one embodiment of the light emitting device, the light emitting device especially comprises:

- a substrate having a first main face on which a first electrode is applied,

- the second electrode, and

- An organic layer stack in the active region of the substrate between the first and second electrodes, wherein the organic layer stack comprises at least one organic layer suitable for generating light.

The organic layers of the organic layer stack may contain low molecular materials (small molecules) or polymeric materials. Low molecular materials are usually applied by vacuum methods such as evaporation, while polymeric materials can be applied by solvent based methods such as doctor blade, spin-centrifuge (spin coating) or printing.

One of the electrodes is usually used as an anode, which injects holes into the organic layer stack, and the other electrode is used as a cathode, which pushes electrons into the organic layer stack. The anode preferably contains a material with a high work function for electrons, such as indium tin oxide (ITO).

In contrast, the cathode preferably contains a material with a low work function for electrons, such as an alkali metal or an alkaline earth metal. Since these materials are generally sensitive to atmospheric gases such as oxygen and moisture, the cathode may contain, in addition to layers of this material with a lower work function, one or more other layers that are significantly less sensitive to environmental influences , such as silver, aluminum or platinum layers. The further layers enclose layers with a low work function for electrons.

The organic layer stack may comprise, besides at least one layer suitable for light generation, further organic layers, for example hole-injection layers, hole-conducting layers, electron-injection layers and electron-conducting layers.

The hole-conducting layer and the hole-injecting layer are preferably located on the side of the organic layer stack facing the anode, while the electron-conducting layer and the electron-injecting layer are preferably located on the side of the organic layer stack facing the cathode. The organic layer suitable for generating light is preferably arranged here between the hole-conducting layer and the hole-injecting layer on one side and the electron-conducting layer and the electron-injecting layer on the other side. Usually, the organic material is designed to be transparent to light, in particular to light emitted by the organic layer stack.

For example, the hole injection layer contains or consists of at least one of the following materials:

-Pedot:PSS

-F4TCNQ (tetrafluorotetracyano-quinodimethane), p-doped

- NHT-5 containing NDP-2.

For example, the hole-conducting layer contains or consists of at least one of the following materials:

-aNPD=aNPB=4,4'-bis[N-(1-naphthyl)-N-phenyl-amino]biphenyl

-1-TNATA=4,4',4"-tris(N-(naphthalene-1-yl)-N-phenyl-amino)triphenylamine

-MTDATA=4,4',4"-tris(N-3methylphenyl-N-phenyl-amino)triphenylamine

-TPD=N, N'-diphenyl-N, N'-(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine

-spTAD=2,2',7,7'-diphenylamino-spiro-9,9'-bifloren.

For example, the electron-conducting layer contains or consists of at least one of the following materials:

-Alq3 = three (8-hydroxyquinoline) aluminum

-BAlq=bis-(2-methyl-8-hydroxyquinoline)-4-(phenylphenol)aluminum

-TPBi=1,3,5-tris-(1-phenyl-1H-benzimidazol-2-yl)-benzene.

For example, the electron injection layer contains or consists of at least one of the following materials:

-LiF, NaF

-Cs ₂ CO ₃

-Ba

- NET-5 containing NDN-1.

The luminous means generally have two opposite main surfaces. The main surface of the luminous means facing away from the substrate is referred to below as the "upper side" of the luminous means, and the main area opposite the upper side of the luminous means is referred to as the "lower side" of the luminous means.

The luminous means emit the light generated in the organic layer stack either via its underside or via its top side or via both the bottom side and the top side. In any case, the elements of the light-emitting device must be transparent to the light generated by the organic layer stack in which the light-emitting device is directed towards the side (upper side or lower side) from which the corresponding light is emitted. side) across the path. If it is designed that the light generated in the organic layer stack is emitted from the underside and the top side of the light-emitting device, it is generally necessary to make all components of the light-emitting device (especially the electrodes) as well as the encapsulation and the substrate transparent to the light generated by the organic layer stack . An element is also referred to herein as "light-transmissive" when it is configured to transmit at least light generated by the organic layer stack.

In accordance with at least one embodiment of the luminous means, the first electrode is permeable to light emitted by the organic layer stack during operation.

If only the first electrode is permeable to the light generated by the organic layer stack during operation, but the second electrode is not, it is generally designed that the light is emitted through the underside of the luminous means. In this case, therefore, at least the substrate is preferably also designed to be permeable to the light generated by the organic layer stack.

Suitable substrate materials for the construction of the light emitted by the organic layer stack are, for example: glass or plastics, such as polyethylene terephthalate (PET), polybutylene terephthalate ( PBT), polyethylene naphthalate (PEN), polycarbonate (PC), polyimide (PI), polysulfone (PSO), polyphenylene ether sulfone (PES), polyethylene (PE), poly Propylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and polymethylmethacrylate (PMMA), polyamide (PA), polyurethane (PUR), and rubber.

In addition, laminates made of glass and at least one of the aforementioned plastics are suitable as substrates for forming light-transmissive light emitted by the organic layer stack.

In accordance with at least one further embodiment of the luminous means, the second electrode is permeable to light emitted by the organic layer stack during operation. If only the second electrode is permeable to the light generated during operation by the organic layer stack, but the first electrode is not, it is generally designed that the light is emitted through the upper side of the luminous means. It is therefore preferred in this case that the components between the second electrode and the upper side (for example the encapsulation) are likewise designed to be transparent to the light generated by the organic layer stack.

In accordance with at least one particularly preferred embodiment of the luminous means, both electrodes are designed to be transparent to the light generated by the layer stack. In the case of this embodiment, the luminous means are generally designed for this purpose in such a way that the luminous means are designed to transmit the light emitted by the organic layer stack. As already mentioned above, in this case the other elements of the light-emitting device (in particular the substrate and the encapsulation) through which the light passes on its way towards the upper or lower side of the light-emitting device are likewise constructed to be transparent by the organic layer The light emitted by the stack.

According to at least one embodiment, at least one electrode contains or consists of a transparent conductive oxide, a metal or a conductive organic material.

Transparent conductive oxides (abbreviated "TCO") are conductive materials, usually metal oxides such as zinc oxide, tin oxide, cadmium oxide, titanium oxide, indium oxide, or indium tin oxide (ITO), that are transparent to over visible light. They are therefore particularly suitable for the construction of electrodes which are permeable to the light emitted by the organic layer stack. For example ITO is suitable as anode material. In addition to binary metal oxide compounds such as ZnO, SnO ₂ or In ₂ O ₃ , ternary metal oxide compounds such as ZnO:Al(ZAO), Zn ₂ SnO ₄ , CdSnO ₃ , ZnSnO ₃ , MgIn ₂ O ₄ , GaInO ₃ , Zn ₂ In ₂ O ₅ or In ₄ Sn ₃ O ₁₂ or mixtures of different transparent conductive oxides also belong to the TCO group. Furthermore, the TCO does not necessarily correspond to a stoichiometric composition and can also be p- or n-doped.

For example alkali metals or alkaline earth metals can be used as cathode metals. In addition, the TCO materials described above are also suitable for use in forming the cathode.

The electrodes can, for example, contain or consist of a metal layer. If an electrode containing or consisting of a metal layer is to be designed to be transparent to the light emitted by the organic layer stack, the metal layer must be made sufficiently thin. Preferably, such a semitransparent metal layer has a thickness of between 1 nm and 100 nm, limit values included.

For example PEDOT:PSS is suitable as organic conductive material for electrodes, it is particularly well suited for anodes. Further suitable organically conductive materials are especially polythiophenes or pentacenes.

Organic materials are generally transparent to visible light. Electrodes which contain or consist of organically conductive materials are therefore generally also permeable to the light emitted by the organic layer stack.

In accordance with at least one embodiment of the luminous means, at least one electrode has a conductive track. The conductor track preferably contains metal or consists of it. It is particularly preferred if the conductor track is configured thicker, for example compared to the above-described translucent metal layer. Preferably the thickness of the metal track is at most 1.5 μm. Such thick conductor tracks generally have good electrical conductivity and are therefore particularly well suited for injecting charge carriers into the organic layer stack. Furthermore, the metal track is preferably configured such that only a small part of it is occupied by the electrode area surrounding it. For example, the conductor track is designed as a grid which is permeable to the light emitted by the organic layer stack. In this way, an electrode permeable to the light emitted by the organic layer stack can be obtained by means of the conductive tracks, which electrode advantageously also allows a good charge carrier injection into the organic layer stack.

Preferably, the metal track accounts for at most 25%, preferably at most 10%, particularly preferably at most 5%, of the total electrode area. In this way, the metal track is no longer perceptible or barely perceptible to the viewer.

Particularly preferably, the conductor track has a multilayer structure. Such a multilayer structure can have, for example, a plurality of metal layers. Preferably, the multilayer structure comprises or consists of three metal layers, wherein the two outer layers serve as protective layers for the middle layer, eg against corrosion. The middle layer of the multilayer structure can, for example, contain aluminum or be formed from aluminium, while the two outer layers can contain chromium, molybdenum, copper or silver or can be formed from one of these materials.

The thickness of the multilayer structure here is preferably at least 50 nm and at most 100 nm.

The material is particularly well suited here for electrodes with poor electrical conductivity. For example for electrodes containing or formed from TCo. The materials described are suitable in principle for the anode and cathode.

In accordance with at least one embodiment of the light-emitting device, the organic layer stack comprises a doped organic layer comprising a dopant, the doped organic layer being arranged between at least one organic layer suitable for generating light and an electrode between one. It is particularly preferred that the doped organic layer forms the outermost layer of the organic layer stack, which particularly preferably forms a common interface with the respective facing electrodes. The doped organic layer may be an n-doped layer or a p-doped layer. If the doped layer is arranged towards or adjacent to the cathode, it is usually an n-doped layer. Conversely, if a doped layer is positioned towards or adjacent to the anode, it is typically a p-doped layer.

The dopant of the doped layer is preferably the largest possible atom or molecule which is suitable for releasing electrons in the case of n-dopants and suitable for releasing holes in the case of p-dopants. Furthermore, the dopant preferably has a low diffusion constant within the organic layer stack, as is usually the case, for example, with large atoms or molecules.

The doping advantageously increases the conductivity of the doped organic layer on the one hand and, in the case of an n-doped layer adjoining the cathode, leads to a better injection of electrons from the cathode into the organic layer stack, or in the case of a p-doped layer adjoining the anode. In the case of a doped layer, better injection of holes from the anode into the organic layer stack is achieved. Preference is given to using cesium, barium and lithium fluoride as n-dopants. For example the following materials are suitable as p-dopants: F4TCNQ, HIL from Mitsubishi (MCC-PC1.020).

In accordance with at least one embodiment of the luminous means, the active region is arranged within the encapsulation. Good insulation from oxygen and moisture and other atmospheric gases since the organic materials of the organic layer stack and often also the electrode materials (in particular the electron-injecting cathode materials) are reactive with respect to atmospheric gases such as moisture and oxygen The on-off is often particularly important for the lifetime of the light-emitting device and is usually isolated by means of packaging. In particular the active region containing the organic layer stack and the electrodes usually has to be protected here.

For example, a cap can be used as an encapsulation, which has a cavity in the area of the active layer stack and which is mounted on the substrate in a fixed area surrounding the active area, for example by gluing. Preferably, the cavity of the cap forms a cavity above the active region, in which cavity the organic layer stack and the two electrodes are arranged. Furthermore, the cap with its cavity underside preferably does not come into direct contact with the second electrode on the organic layer stack.

Furthermore, a plate can also be used as an encapsulation, which is bonded to the substrate in a fixed region surrounding the active area, for example by gluing. Such a plate can be placed in direct contact with the second electrode. For example, the plate can be fixed on the second electrode via an adhesive layer.

In order to create a space between the caps or plates, so that the caps or plates are not in direct contact with the second electrode, according to one embodiment, the active region comprises spacers. The spacers can be, for example, spherical particles arranged on the organic layer stack or on the second electrode.

In addition thin films can also be used as encapsulation. The film can be bonded to the substrate in a fixed region around the active area, for example by gluing. Such a film can be placed in direct contact with the second electrode. For example, the film can be fixed on the second electrode by means of an adhesive layer.

In order to produce a spacing between the film and the second electrode or the organic layer stack, so that the film is not in direct contact with the second electrode, according to one embodiment the active region contains a spacer. The spacers can be, for example, spherical particles arranged on the organic layer stack or on the second electrode.

The film is formed, for example, from transparent plastic or glass. Preferably, the film has a thickness of at most 1 mm, particularly preferably at most 0.5 mm.

Furthermore, laminates can also be used as encapsulations, said laminates comprising at least one layer made of glass, onto which at least one layer made of plastic is applied. Preferably, both main faces of the glass layer are each covered by a plastic layer. Thus, the laminate is a plastic-glass-plastic laminate.

The laminate can be bonded to the substrate in a fixed region around the active area, for example by gluing. This laminate can be placed in direct contact with the second electrode. For example, the laminate can be fixed on the second electrode by means of an adhesive layer.

In order to produce a spacing between the laminate and the second electrode or the organic layer stack, so that the laminate is not in direct contact with the second electrode, according to one embodiment the active region contains a spacer. The spacers can be, for example, spherical particles arranged on the organic layer stack or on the second electrode.

According to at least one embodiment, the encapsulation is formed by thin-film encapsulation. The thin film encapsulation has at least one barrier layer. The barrier layer is provided in order to protect the organic layer stack and the sensitive electrode material against the ingress of harmful substances such as moisture and oxygen.

Thin-film encapsulation also comprises at least one thin-film layer, for example a barrier layer, which is obtained by thin-film methods such as sputtering, evaporation and plasma-supported CVD (abbreviation for "Chemical Vapor Deposition"), ALD (abbreviation for "Atomic Layer Deposition"), MOVPE (short for "metal organic vapor phase epitaxy"), flash evaporation and/or laser ablation application. The thickness of such a film layer is preferably between 0.5 μm and 5 μm, limit values included.

The thin-film encapsulation can, for example, be applied directly on the second electrode. Compared with caps or plates, thin-film encapsulation generally has the advantage that it can be designed to be particularly thin and space-saving.

According to at least one embodiment, the barrier layer contains or is formed from one of the following materials: silicon oxide, silicon nitride. Said material is particularly suitable for forming a barrier against external influences, such as the ingress of oxygen and moisture.

According to at least one embodiment, the thin-film encapsulation comprises a plurality of alternating barrier layers, wherein at least two barrier layers differing in their material composition are arranged in a regular sequence. In other words, in the case of this embodiment, the thin-film encapsulation comprises a first and a second barrier layer, wherein the material composition of the first barrier layer differs from the material composition of the second barrier layer. The first barrier layer may, for example, contain silicon oxide or be formed from this material, and the second barrier layer may, for example, contain silicon nitride or be formed from this material. The first and second barrier layers are also arranged alternately with regard to their material composition.

Such an alternating layer sequence of the barrier layer within the thin-film encapsulation has the advantage that the thin-film encapsulation is designed to be particularly dense. This is usually due to the fact that pinholes (ie pinholes) which are produced therein when the corresponding barrier layer is applied can be covered by the barrier layer lying thereon or even filled with its material. In addition, pinholes of a barrier layer are less likely to form generalized connections with pinholes of adjacent barrier layers. This is especially the case for barrier layers which are arranged alternately with regard to their material composition.

It is particularly preferred that one of the alternating barrier layers contains silicon oxide and the other alternate barrier layer contains silicon nitride.

According to at least one further embodiment, the thin-film encapsulation comprises at least one polymer intermediate layer arranged between two barrier layers.

For example, multicomponent resin systems in which monomers are vaporized and separated off in liquid form are suitable for the polymeric intermediate layer. As a result, a high degree of flatness is achieved for the polymer intermediate layer. The separated layers are then crosslinked by UV irradiation.

The task of the polymer interlayer is to planarize the thin-film encapsulation in order to prevent the pinholes in the alternating inorganic barrier layers from overlapping each other. As a result, the water permeability and oxygen permeability of the thin film sealing portion are reduced.

The thickness of the polymer intermediate layer can preferably be between 50 nm and 100 nm, limit values included. It is particularly preferred that the polymeric interlayer is light-transmissive if a top emitter is present or if transparency is required for the lighting device.

Particularly preferably, the thin-film encapsulation comprises a protective lacquer layer as the outermost layer. The protective lacquer layer can be applied to the thin-film encapsulation, for example, by spraying with a masking process.

Alternatively, for example, an epoxy resin film can be glued onto the film encapsulation as a protective lacquer layer. In this case, the protective lacquer layer also contributes in particular to the water resistance. Thin glass that further improves waterproofness can also be laminated on the epoxy resin film.

According to a further embodiment, an adhesion-promoting layer, which is preferably also a film layer, is arranged between the film encapsulation and the second electrode. The purpose of the adhesion-promoting layer is to improve the adhesion of the thin-film encapsulation on the second electrode or of other layers that may be arranged on the second electrode. In this case, the adhesion-promoting layer contains, for example, sulfur atoms and/or nitrogen atoms or sulfur compounds and/or nitrogen compounds. The adhesion-promoting layer can, for example, also contain or consist of aluminum oxide.

According to at least one other embodiment, an organic planarization layer is arranged between the second electrode and the thin-film encapsulation.

For example, a multi-component resin system in which monomers are vaporized and separated in liquid form is suitable for the organic planarization layer. As a result, the organic planarization layer achieves a high degree of flatness. The separated layers are then crosslinked by UV irradiation. The task of the organic planarization layer is to planarize the thin-film encapsulation in order to prevent the pinholes in the alternating inorganic barrier layers from overlapping each other. As a result, the water permeability and oxygen permeability of the thin film sealing portion are reduced. The thickness of the organic planarization layer can preferably be between 50 nm and 100 nm, limit values included.

If an adhesion-promoting layer is arranged between the second electrode and the thin-film encapsulation, the organic planarization layer is preferably arranged between the adhesion-promoting layer and the second electrode, wherein the adhesion-promoting layer should improve the adhesion between the planarization layer and the thin-film encapsulation. adhesiveness.

The organic planarization layer may for example contain scattering centers such as diffusing particles, eg silicon spheres. In addition to silicon spheres, other light-transmitting materials having a different refractive index than the surrounding matrix are also suitable, such as glass spheres.

The diffusing particles are designed to scatter light, for example lateral structures of the OLED layer structure, which may occur eg due to the electrode design, should disappear so that the viewer has the impression of homogeneity. In addition, emission characteristics can be affected by light scattering.

The diameter of the diffusing particles is preferably at least 0.5 μm and at most 5 μm. The thickness of the surrounding layer is preferably adapted accordingly, so that the diffusing particles are embedded in the layer.

If a light-emitting device is to be obtained that is substantially transparent to the light emitted by the organic layer stack during operation, or to obtain light emitted from its upper side, the encapsulation is preferably also constructed so as to be transparent to the light emitted by the light-emitting device in operation. The light emitted while working.

According to at least one embodiment, the encapsulation contains glass or is formed of glass. Such encapsulations are generally transparent to the light emitted by the organic layer stack. In particular glass caps or glass plates which are permeable to the light generated by the organic layer stack can be used as encapsulation.

According to at least one embodiment, the organic planarization layer contains a luminescence conversion material.

The luminescence conversion material, for example, partially converts blue light into yellow light, thereby producing white mixed light emitted from the luminous means. Embedding the luminescence conversion material in a planarization layer or other functional layer such as encapsulation or substrate has proven to be particularly advantageous, since process steps can thus be saved during production. The production costs are therefore particularly low.

The luminescence conversion material is a material that absorbs incident light in a first wavelength range and emits light in a second wavelength range different from the first wavelength range, the second wavelength range typically comprising longer wavelengths than the first wavelength range wavelength.

Organic materials such as perylene-fluorescent materials can be used as luminescence conversion materials. For example, other organic materials which can also be used for dye lasers in the corresponding wavelength range are suitable as luminescence conversion materials.

Furthermore, luminescence conversion materials whose molecules contain aromatic systems and preferably conjugated double bonds are also suitable. The main skeleton of the luminescence conversion material is formed, for example, from chromene, xanthene, coumarin, thioindole and/or benzene.

For example the following materials are particularly suitable: Rhodamin 6G, DCM=4-(dicyanomethylene)-2-methyl-6-(p-dimethylamino-styryl)-4H-pyran.

Molecules with anomalous Stokes shifts which result in little or no overlap of the luminescent region with the exciting radiation are particularly desirable here. In addition, so-called triplet emitters are also suitable, since in this case no overlap occurs between excited radiation and luminescence. Another positive effect of triplet emitters is that absorption losses are avoided, for example Rhodamin B is particularly suitable here.

In addition, the following inorganic materials are also suitable as luminescence conversion materials: garnet doped with rare earth metals, alkaline earth metal sulfides doped with rare earth metals, sulfide gallates (Thiogallate) doped with rare earth metals, aluminum doped with rare earth metals Orthosilicate doped with rare earth metals, chlorosilicate doped with rare earth metals, alkaline earth metal silicon nitride doped with rare earth metals, oxynitride doped with rare earth metals and nitrogen doped with rare earth metals alumina.

According to at least one further embodiment, the luminous means comprises a getter material. The getter material is advantageously suitable for binding moisture and/or oxygen. For example BaO, CaO, zeolites, Al-alkoxylates and barium can be used as getter materials.

The getter material can, for example, be arranged inside the active region. Furthermore, the getter material can alternatively also be arranged outside the active region. The getter material can, for example, surround the active region and be arranged approximately annularly around the active region between the substrate and the encapsulation. In this way, the ingress of harmful substances can be prevented particularly effectively by the getter material.

Furthermore, when a cap or plate is used for the encapsulation, it is also possible to apply a getter material on that side of the cap or plate which faces the active layer stack. If a light-emitting component is to be produced which is substantially permeable to the light generated by the organic layer stack, the getter material is then preferably also permeable to the light generated by the organic layer stack. For this purpose, Al-alkoxy compounds are suitable as getter materials, for example.

If the luminous means comprises an encapsulation which prevents the penetration of harmful substances into the luminous means particularly well, as is the case, for example, with thin-film encapsulations, the luminous means preferably does not contain any getter materials.

In accordance with at least one embodiment, the luminous means has an electrical lead on the substrate, which electrically connects one of the electrodes to a connection location preferably located outside the active region. Preferably, the luminous means are electrically contacted via the connection location, for example by means of a plug.

In accordance with at least one embodiment, the electrical leads are designed to be transparent to light emitted by the layer stack. Leads of this type are particularly suitable for use in luminous devices which are constructed completely transparent to the light emitted by the layer stack.

The electrical leads may, for example, contain metal or be formed therefrom. If the electrical leads are to be formed permeable to the light emitted by the layer stack, the metal is applied so thinly in this case that a translucent metal layer is formed which is permeable to the light of the organic layer stack.

Furthermore, the electrical leads of the luminous means can also contain or be formed from transparent conductive oxides. Since the transparent conductive oxide is transparent to visible light, such electrical leads are generally also transparent to the light emitted by the layer stack, and preferably to external visible light.

In accordance with at least one embodiment, the luminous means is designed substantially permeable to light generated by the organic layer stack. In this case, the luminous means are designed for this purpose in such a way that the light generated by the organic layer stack is emitted from its upper side and from its lower side. Furthermore, in this case the luminous means are preferably designed such that in the off state they transmit external visible light well and contain no components which absorb or reflect visible light to a large extent. In this case, the luminous means are hardly perceptible to a viewer in the switched-off state. This means that the luminous means are here preferably designed to be clear and transparent and not diffuse.

If the light-emitting device is permeable to the light emitted by the organic layer stack, the components of the light-emitting device, such as the organic layer stack, electrodes, substrate, encapsulation, possible getter materials and leads, are also permeable to the light emitted by the organic layer stack. The light generated by the stack is particularly preferably transparent to visible light.

In accordance with at least one embodiment of the luminous means, glazing is used as substrate. This can be advantageous in particular when the luminous means is designed to be permeable to the light generated by the organic layer stack.

Light-emitting devices which are designed to be permeable to the light generated by the organic layer stack can be integrated in windows, ceiling elements, windshields, doors, room dividers, glass components, walls or partitions and can be used, for example, in buildings, furniture, vehicles or aircraft.

According to another embodiment, the glazing is used as encapsulation.

Particularly preferably, the substrate and the encapsulation are configured as glazing. In this embodiment, the luminous means, which are formed preferably permeable to the light emitted by the organic layer stack, or the lighting device with such a luminous means, can be integrated as simply as possible in the glass pane as a glazing.

Glass panes with luminous means designed to transmit at least the light emitted by the organic layer stack or with lighting means with such luminous means can be used, for example, for signal displays on hotel doors, at trade fairs or in museums. Information can thus be displayed via the luminous means, which information can be displayed via the luminous means as required. In this way, labels on doors, for example, can advantageously be avoided. Furthermore, the luminous information via the luminous means produces a significantly better signaling effect than via labels.

Furthermore, with the aid of light-emitting devices which are constructed so as to transmit the light emitted by the organic layer stack, it is possible to simply integrate advertising displays, such as company logos, into display windows, or to project information on the windshield of a vehicle or aircraft superior.

Furthermore, luminous means which are at least partially permeable to the light generated by the organic layer stack can be used, for example, in ceiling elements in museums or conference centres. In this way, when the luminous means are switched off, daylight can enter the corresponding room through the ceiling element, while the ceiling element with the luminous means can be used for lighting at night or at dusk.

According to at least one embodiment, the substrate is designed to be milchig.

According to another embodiment, the encapsulation is designed to be milky white.

For example, the surface of the substrate and/or the package is roughened and/or scattering centers are introduced into the substrate/package.

It is also possible to apply additional films/layers containing so-called "polymer dispersed liquid crystals" on the substrate and/or the encapsulation. Thereby, the milky white can be electrically switched on and off. The layer was clear when a voltage was applied and turned opalescent when turned off.

A milky-white design of the substrate or of the encapsulation (eg glazing designed as milky-white) is particularly advantageous in the above-mentioned applications when the corresponding window does not require a clear see-through for design or functional reasons.

According to at least one embodiment, the luminous means comprises at least one reflective element. The reflective element is preferably formed along one of the main planes of the luminous means. Particularly preferably, the reflective element is formed completely along the main plane of the luminous means. The reflective element can be arranged on the underside of the light-emitting device, for example on the side of the substrate facing away from the organic layer stack, or on the upper side of the light-emitting device, for example on the side of the package facing away from the organic layer stack. on that side. Furthermore, the reflective element can be arranged, for example, between the first electrode and the substrate or between the second electrode and the encapsulation. By arranging a reflective element in the light-emitting device, one of the main surfaces is generally cut off from the light generated in the organic layer stack, which means that the light generated in the organic layer stack is only emitted from one of the main surfaces, that is to say from the bottom side or Issued from the upper side. This main surface is also referred to below as "luminous front surface". It should be pointed out here that the term “luminous front side” does not necessarily mean that the entire main surface from which the light generated in the organic layer stack is emitted is configured to emit light. Rather, it is also possible for only a part of the front side to be illuminated. Here, the luminous front, the underside and the luminous surface of the upper side are also referred to as “luminous surfaces”.

The remaining elements of the luminous means (but at least the luminous means elements which are transmitted by the light generated in the organic layer stack on the way towards the light-emitting front side) are preferably configured to be permeable to the light generated in the organic layer stack . It is particularly preferred that these elements are generally configured to be transparent to visible light.

If the luminous means comprises at least one reflective element in which the light-transmissive elements are formed through which the light generated by the organic layer stack is passed on the light-emitting front side, the luminous means are advantageously located in the In the on-state it can be used as an illumination source, and in the off-state it can be used as a reflector due to the fact that the reflective element is combined with the remaining visible light-permeable elements of the luminous device. It is advantageous for the luminous means to be switchable between a reflector function and an illumination function.

Light emitting devices comprising reflective elements are also referred to herein as "reflective light emitting devices".

The luminous means can contain additional reflective elements, or one of the elements of the luminous means (for example the substrate, the electrodes or the encapsulation) can be designed as a reflective element.

In accordance with at least one embodiment, the luminous means comprises a reflective layer sequence as reflective element.

The reflective layer sequence can, for example, contain or be formed by a dielectric mirror. In addition, the reflective layer sequence may also contain silver layers and layers made of mechanically resistant copper. Preferably, the reflective layer is then electrically insulated from functional layers of the luminous component, such as electrodes or the organic layer stack.

The reflective layer sequence can be arranged on the underside of the luminous means, eg on the side of the substrate facing away from the organic layer stack, or on the upper side of the luminous means, eg on the side of the encapsulation facing away from the organic layer stack. Furthermore, a reflective layer sequence can be arranged, for example, between the first electrode and the substrate or between the second electrode and the encapsulation.

The reflective layer sequence can also form, for example, the outermost layer of one of the electrodes.

In accordance with at least one embodiment, the luminous means comprises an antireflection layer sequence. Such an antireflection layer sequence is preferably applied to one of the outer surfaces, ie to the upper side or the lower side of the luminous means. If the luminous means radiate light from only one main surface, ie from the light-emitting front side, the anti-reflection layer sequence is preferably applied on the light-emitting front side.

The antireflection layer sequence preferably contains or is formed of a dielectric material. For example, the layer sequence can contain at least one layer containing silicon nitride or silicon oxide.

In accordance with at least one specific embodiment, the first or the second electrode is embodied reflectively. In this case, the reflective electrode forms the reflective element. Preferably, the reflective electrode contains silver, aluminum and/or gold or is formed from one of these materials.

Furthermore, the encapsulation can be configured to be reflective and act as a reflective element. In this case, the light emitting means emits the light generated in the organic layer stack via the substrate.

According to at least one embodiment, the reflective encapsulation contains or is formed by a metal cap. It is particularly preferred if the metal cap is polished on its inner side facing the organic layer stack.

According to a further preferred embodiment, the reflective encapsulation is formed by a reflective thin-film encapsulation having at least one barrier layer. In this embodiment, the thin-film encapsulation already described above contains at least one reflective layer. The reflective layer preferably contains metal or is formed therefrom. Particularly preferably, the reflective thin-film encapsulation comprises at least one of the following layers as reflective layer: silver layer, copper layer. Particularly preferably, the thin-film encapsulation contains a silver layer and a copper layer as reflective layers.

Furthermore, the reflective thin-film encapsulation can contain a reflective layer sequence, for example a Bragg mirror, as reflective layer. For this purpose, as mentioned above, the thin-film encapsulation can comprise alternating layers of different materials which form a particularly dense encapsulation while also forming a Bragg mirror or a dielectric mirror.

According to a further embodiment, the luminous means contains a getter material which is permeable to the light emitted by the organic layer stack and is also preferably designed generally permeable to visible light.

In accordance with at least one embodiment, the getter material, which is at least transparent to the light emitted by the layer stack, is contained by a reflective encapsulation.

The getter material has the task of binding substances, such as oxygen and/or moisture, which can penetrate the luminous component despite the encapsulation.

The getter material is preferably contained by the encapsulation, even if it faces the space to be encapsulated, that is to say the organic layer stack. If a metal cap is used as encapsulation, the getter material is preferably applied, for example in layer form, on the inner side of the metal cap facing the organic layer stack. In order for the metal cap to have good reflective properties, it is particularly advantageous to have a getter material which is permeable to the light emitted by the layer stack.

To fix the cap as encapsulation on the substrate, for example an adhesive arranged around the active region is used. This adhesive (but also other linking agents) can also be mixed with getter materials. Since the bonding agent is often permeable to harmful substances such as moisture and oxygen, this has the advantage as a cap that even if these substances penetrate the luminous means, they are bound by the getter material.

In particular, thin-film encapsulations with the above-mentioned alternating barrier layers are usually constructed so densely that it is not necessary to use getter materials.

In accordance with at least one further embodiment, the substrate is embodied reflectively. In this case, the substrate preferably forms the reflective element described above. In this case it is preferred that all other elements of the luminous means arranged above the substrate are designed to be at least permeable to the light emitted by the organic layer stack. For example, metal films or metal plates can be used as reflective substrates.

Light-emitting devices which contain reflective elements and whose other elements are illuminated by the light generated in the organic layer stack can be used as reflectors or as illumination sources as already mentioned above. passing in the path toward the illuminated front) is constructed to be transparent to visible light. The luminous means can be designed in such a way that the entire area of the luminous front side serves as a source of illumination when the luminous means is in operation and as a reflector in the off state. In addition, the entire area of the luminous front side of the luminous means can be used simultaneously as reflector and illumination source during operation. Furthermore, it is also possible to divide the area of the illuminated front side, so that at least a certain area is designed as a reflector and at least another area is designed as an illumination source during operation.

A luminous component with a mirror function and an illumination function usually contains at least one electrode which is designed to be permeable to the light generated by the organic layer stack and to be passed by it on its way towards the front side of the light.

In accordance with at least one embodiment, the light-transmitting electrode is structured in such a way that a desired shape of the luminous area in the front side of the luminous means is predetermined. The shape of the luminous surface can be designed, for example, according to logos or symbols, so that during operation these or other information appear against the background of the reflective surface. In a mirror of the vehicle, for example in a rear view mirror or a side view mirror, for example a warning (for example a distance message when parking) can then be superimposed in the mirror.

Furthermore, the luminous means with reflective and lighting functions can be included in a bathroom mirror or a dressing mirror or be designed as a bathroom mirror or a dressing mirror. The bathroom or dressing mirror can, for example, be designed in multiple parts, with a central main mirror and two side mirror wings. The side-mounted mirror wing can be designed, for example, as a luminous means with reflector and illumination function, and can be used as a reflector when the ratio of light is good. When the light ratio is poor, one or two mirror wings can be connected as a light source to illuminate the viewer. Advantageously, such illuminated mirror wings can also be used as decorative lighting elements.

Furthermore, light emitting devices with illumination and mirror functions can be included in the inspection mirror. In the simplest case, such an inspection mirror is a holding element with a curved mirror element at the end, for example a dental mirror. According to one embodiment, the mirror element contains a luminous means with an illumination function and a mirror function. In the case of a mirror element of an inspection mirror, the combination of the mirror function and the illumination function advantageously provides the possibility of both seeing hard-to-reach places and illuminating said regions. Such an inspection mirror can be used, for example, as a dentist's appliance or in the domestic environment, for example, to search for objects lost behind or under difficult-to-move furniture. Furthermore, the use of a luminous means with a reflector function and an illumination function in the inspection mirror has the advantage that the reflector and the lamp can be actuated by hand at the same time.

The light emitting device with mirror function and lighting function can also be integrated in the mirror of the portable vanity case. If no extraneous light is available, the lighting of the reflectors can be activated to provide a better proportion of light to the viewer.

Furthermore, luminous means with reflective and illuminating functions can be used as decorative elements, for example as sparkling reflectors. Blinking mirrors can be used, for example, in a twinkling Christmas star.

In accordance with at least one embodiment of the luminous means, the luminous means is designed to be flexible. In particular, a flexible luminous means is capable of being bent to a certain extent without being damaged. A luminous means which is designed to be flexible can preferably be bent multiple times without damage. The light emitting device is also adapted to withstand multiple bending cycles without damage.

It is particularly preferred if the luminous means are of flexible design, so that they can be wound onto a roll and unrolled from the roll without being damaged there.

In accordance with at least one embodiment of the luminous means, the encapsulation of the luminous means is designed to be flexible. Flexible here means in particular that the encapsulation can be bent to a certain extent without damaging the encapsulation during bending. Flexible encapsulations are, for example, thin glass layers, laminates or thin layers, such as films, of plastic or metal. The flexible encapsulation may also be a thin-film encapsulation, as described above. The thin-film encapsulation preferably comprises at least one barrier layer, as described above.

According to at least one embodiment, the flexible encapsulation is designed to be light-transmissive, which means that the flexible encapsulation can transmit at least part of the light generated in the organic layer stack of the light-emitting device, so that the part of the light-emitting device Light can be emitted through the flexible package.

In accordance with at least one embodiment of the luminous means, the substrate of the luminous means is flexible. Flexible here means in particular that the substrate can be bent to a certain extent without the substrate being damaged during bending.

In accordance with at least one embodiment of the luminous means, the substrate is formed from metal. The substrate preferably comprises at least one of the following materials: aluminum, stainless steel, gold, silver. When using a metal substrate as the substrate of the luminous means, it has proven to be particularly advantageous, since the good reflectivity of the material can contribute to increasing the light output of the luminous means. At least a part of the light which exits the active area of the light emitting device and encounters the metal substrate when the light emitting device is in operation may be reflected by the substrate towards the light emitting front side of the light emitting device.

Preferably, the metal is designed to be flexible. For this purpose, the substrate can be formed, for example, as a sheet. The substrate here is preferably designed as a medium plate with a thickness of at least 3 mm and at most 4.75 mm or as a thin plate with a thickness of at most 3 mm.

In addition, the flexible substrate can also be designed as a metal film. The thickness of the substrate here is preferably at most 1 mm, particularly preferably at most 0.5 mm.

In accordance with at least one embodiment of the luminous means, both the substrate and the encapsulation are designed to be flexible. For this purpose, the encapsulation and the substrate are preferably designed according to one of the aforementioned embodiments. For example the substrate and/or the encapsulation can be designed as a thin film. Furthermore, it is also possible to form the substrate as a thin-film and the encapsulation as a thin-film encapsulation.

In accordance with at least one embodiment of the luminous means, the luminous means comprises a flexible substrate formed from a metallic material. For example a flexible substrate is designed as a sheet. A first electrode of the luminous means is arranged behind the first main surface of the flexible substrate. In this case further layers can be arranged between the substrate and the first electrode. For example, an electrically insulating layer can be arranged between the substrate and the first electrode, by means of which at least the first main surface of the substrate is coated. The electrically insulating layer electrically decouples the first electrode from the substrate.

In this embodiment, the organic layer stack of the light-emitting means is arranged downstream of the first electrode. The organic layer stack is, for example, applied directly on the first electrode. The organic layer stack comprises organic layers designed to generate light.

The organic layer stack is followed by a second electrode. The second electrode is applied, for example, directly on the organic layer stack. The second electrode is preferably light-transmissive, as described above.

In this embodiment, a planarization layer as described above is arranged after the second electrode. The planarization layer is, for example, directly arranged on the second electrode. The planarization layer preferably contains an organic material. The planarization layer may also contain one of the following materials: scattering centers such as diffusing particles, luminescence conversion materials, color filter materials.

The planarization layer is followed by a barrier layer. Preferably, the planarization layer is followed by barrier layers. The barrier layer as part of the thin-film encapsulation forms a flexible encapsulation of the luminous means and is applied, for example, directly on the planarization layer.

In accordance with at least one embodiment, the substrate of the luminous means is formed as a plastic film. This means that the substrate preferably has a thickness of at most 1 mm, particularly preferably at most 0.5 mm, and contains or is formed from plastic.

In accordance with at least one embodiment of the luminous means, the luminous means comprises a flexible substrate which is formed as a film, preferably as a plastic film. The plastic film can in this case be formed from plastic or contain plastic. For example, it is possible for the substrate to contain a metal foil coated with a plastic material as the base body.

It is particularly preferred if the plastic film is formed from a light-transmitting plastic, which transmits at least some of the light generated in the organic layer stack during operation of the luminous means.

A first electrode is arranged behind the first main surface of the plastic foil. Preferably, the first electrode is applied directly on the first main surface of the substrate (ie the membrane). The first electrode is here preferably light-transmissive, as described above.

The organic layer stack of the light-emitting means is arranged behind the first electrode. For example, the organic layer stack is applied directly on the first electrode. The organic layer stack comprises the outermost organic layer. The outermost organic layer is doped with a dopant. As described above, the dopants of the doped layer are preferably atoms or molecules as large as possible, which are suitable for releasing electrons in the case of n-dopants and holes in the case of p-dopants . Furthermore, the dopant preferably has a low diffusion constant within the organic layer stack, as is usually the case, for example, with large atoms or molecules. In this case, especially cesium is a particularly suitable dopant.

A second electrode is arranged after the organic layer stack. The second electrode is preferably applied directly on the organic layer stack. As described above, the second electrode is here configured light-transmissively. In said embodiment, it is preferred that the light emitting device does not contain any getter material.

According to one embodiment of the luminous means, the luminous means comprises a flexible encapsulation. It is preferred that the flexible encapsulation is light transmissive, which means that it transmits at least a part of the light generated in the active region when the light emitting device is in operation.

The luminous means here utilize in particular the idea that a flexible luminous means with a light-transmissive substrate, a light-transmissive first electrode, a light-transmissive second electrode and a light-transmissive encapsulation can be used in particular in many ways. For example, a luminous means configured in this way can be used as a light-transmissive housing for other luminous means, for example as a lampshade for an incandescent lamp. Most of the light generated by an incandescent lamp can pass through this flexible light-transmitting lighting device. Light of another color can be mixed into the light of the incandescent lamp by means of the luminous means.

In accordance with at least one embodiment of the luminous means, the substrate is designed as a laminate. In this case, the substrate is preferably designed to be flexible. The laminate preferably comprises at least one first layer and at least one second layer. It is particularly preferred that the material forming the first layer is different from the material forming the second layer.

In accordance with at least one embodiment of the luminous means, the substrate of the luminous means forms a laminate with a first layer of plastic. A second layer of glass is applied on the first layer. Preferably, the third layer of plastic is applied directly on the second layer. Particularly preferably, the third layer is formed from the same plastic as the first layer. This means that the substrate according to the described embodiment is designed as a plastic-glass-plastic laminate.

Preferably, the laminate is configured to be flexible. For this purpose, the plastic layer is designed as a film or thin coating of the glass substrate. The glass-substrate is formed from a thin flexible glass sheet.

In accordance with at least one embodiment of the luminous means, the luminous means contains a flexible plastic-glass-plastic laminate as substrate. The substrate is followed by a first electrode. In this case, the first electrode is applied directly on the first main surface of the substrate.

The organic layer stack of the light-emitting means is arranged behind the first electrode. The organic layer stack is, for example, applied directly on the first electrode. The organic layer stack comprises organic layers designed to generate light.

Following the organic layer stack is the second electrode. The second electrode is applied, for example, directly on the organic layer stack. As described above, the second electrode is preferably light-transmissive.

The planarization layer described above is arranged behind the second electrode. For example, the planarization layer is directly disposed on the second electrode. The planarization layer preferably contains an organic material. The planarization layer may also contain one of the following materials: scattering centers such as diffusing particles, luminescence conversion materials, color filter materials.

The planarization layer is followed by a barrier layer. Preferably, the planarization layer is followed by barrier layers. The barrier layer forms a flexible encapsulation of the light-emitting device as part of the thin-film encapsulation and is applied, for example, directly on the planarization layer.

In accordance with at least one embodiment of the luminous means, the substrate is formed by leaves of a louver. This means that the blades of the louver serve as a substrate for the light emitting device. Preferably, all blades of the louver are used as a substrate for each light emitting device. The shutter is mounted, for example, on a window or door such that the first main side of the substrate formed by the shutter blades faces towards the interior of the room with the window or door. For example with the shutters closed, the shutters can be used to illuminate the interior with preferably sunlight-like light.

In accordance with at least one embodiment of the luminous means, the adhesive layer is applied to a second main surface of the substrate facing away from the first main surface of the luminous means. The adhesive layer is preferably covered with a protective film before fixing the luminous device at its destination. After removal of the protective foil, the luminous means can be permanently fixed to their destination by means of a peel-off or glue-on graphic. In this case, the adhesion is achieved by the adhesive layer on the second main side of the substrate. In this case, a luminous means of flexible design, as described above, is particularly suitable, since in this way it is also possible to glue uneven surfaces, for example round or curved surfaces, with the luminous means.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least one first color subregion. The first color subregion is adapted to emit light of a first color. The luminous means also contains at least one second color subregion. The second color subregion is adapted to emit light of a second color different from the first color. This means that the luminous means contains at least two color subregions, which are each suitable for emitting light of different colors from one another.

A luminous means having at least two color subregions is also referred to as "multicolored" here. The color subregions of the multicolor luminous means can be arranged arbitrarily relative to one another, for example side by side or vertically one above the other.

In this case it is also possible for the luminous means to contain a plurality of first color subregions. The first color subregions are respectively suitable for emitting light of a first color. The luminous means can also comprise a plurality of second color subregions, which are each suitable for emitting light of a second color.

In this case, the luminous means are based in particular on the idea that by subdivision into at least two color subregions it is possible to realize a luminous means which can emit light of at least two different colors.

Furthermore, the luminous means can also be adapted to emit mixed light of two different colors. This means that the viewer perceives the mixed color light but cannot distinguish the individual color subregions. This can be achieved, for example, by selecting a sufficiently small size of the color subregions arranged side by side side by side, or by arranging the color subregions vertically one above the other. In this case, the first and second color subregions of the organic layer stack can emit light simultaneously or in short succession.

In accordance with at least one embodiment of the luminous means, the color subregions are arranged on a common plane. This means that the color partitions are arranged laterally next to each other or laterally spaced apart from one another. The color division can be arranged, for example, in the manner of pixels of a display device. However, the color segments have a larger luminous area than the pixels of the display device. The luminous area of each color subregion of the luminous means is preferably at least one square millimeter.

If the color subregions are arranged on a common plane, the color subregions are formed, for example, by dividing the active area of the substrate into different subregions, wherein each subregion of the substrate is associated with a color subregion. A first electrode is applied on the subregion, on which the organic layer stack is located. A second electrode is also applied on top of the organic layer stack. At least one of the electrodes can be structured here, preferably corresponding to the subregions. Structuring at least one electrode enables separate control of the individual color subregions.

Furthermore, the organic layer stack can also be structured according to the subregions, preferably in such a way that each subregion of the substrate contains an independent organic layer stack.

According to one embodiment of the luminous means, the differently colored sub-regional organic layer stacks contain light-generating layers which differ from one another in each case, which differ in their emitter materials and are suitable for generating light of different colors.

In accordance with at least one embodiment, the substrate subregions corresponding to the color subregions are separated from one another by bridges. The bridges preferably contain an electrically insulating material, such as photoresist.

In accordance with at least one embodiment of the luminous means, the color subregions of the luminous means contain color filters. The color filter is adapted to filter light of a certain wavelength range. This means that light in this wavelength range is at least partially absorbed by the color filter. In this way, for example, a first color fraction can be filtered out of white light, and a second color fraction can be transmitted substantially unhindered by the color filter device. The color subregions containing the color filter substantially emit light of the second color fraction.

The color filter means are embedded in the matrix material, for example in the form of particles of one or more color filter materials.

In particular, color subregions arranged in a plane can expediently contain color filter means. When the light-emitting device is designed to emit light from its lower side, the color filter device is usually arranged between the first electrode and the lower side of the light-emitting device, and when the light-emitting device is designed to emit light from its upper side, it is arranged between the second electrode and the lower side of the light-emitting device. Between the upper side of the light emitting device. If the light-emitting device is designed such that light is emitted from its upper side and from its lower side, color filters can also be arranged between the first electrode and the lower side and between the second electrode and the upper side, respectively. The color filters of the color divisions can be applied to the substrate, for example, within the divisions thereof. Furthermore, the color filter device can also be arranged on the outer side of the substrate in the region of the substrate corresponding to the subregion or in the region of the encapsulation corresponding to the subregion.

In accordance with at least one embodiment of the luminous means, the luminous means comprises a first color subregion with a first color filter means and a second color subregion with a second color filter means, wherein the first color filter means is different from the first color filter means Two color filter devices. In this way, the same organic emitter material can be used for both color subregions. The color of the light emitted from the color subregions is determined by the corresponding color filter device of each color subregion. In this way, a light-emitting device with a first color subregion and a second color subregion is realized, wherein the first color subregion emits light of a first color, the second color subregion emits light of a second color, and the first color is different from the second color. color. Layers designed to generate light, such as organic layer stacks, are suitable for emitting white light. Color filter means then filters different color fractions from said white light.

Emitter materials suitable for emitting white light are for example described in "Characterization of White-Emitting Copolymers for PLED-Displays" by D. Buchhauser et al., Proc. of SPIE, Vol. 5519, pp. 70 to 81, (2004) publication, the disclosure of which is incorporated herein by reference. The emitter materials described herein are broadband emitters based on polymeric materials containing copolymers. The copolymer contains polyspirobifluorene as the backbone, which is suitable for emitting light in the blue spectral range. Green- and red-emitting units are also covalently coupled to the polyspirobifluorene.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least one color subregion comprising a luminescence conversion material. The luminescence conversion material is adapted to convert light of a first wavelength range into light of a second wavelength range, wherein the first wavelength range is at least partially different from the second wavelength range. The luminescence conversion material is preferably configured to down-convert. This means that the luminescence conversion material absorbs at least one light of a first wavelength encompassed by a first wavelength range and re-emits at least one light of a second wavelength encompassed by a second wavelength range, wherein the first wavelength is smaller than the second wavelength . Suitable luminescence conversion materials are, for example, the organic and inorganic materials already described above in connection with the planarization layer.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least two color subregions, which each contain a luminescence conversion material, wherein mutually different color subregions contain mutually different luminescence conversion materials. For example, the active region comprises a first color subregion containing a first luminescence conversion material and a second color subregion containing a second luminescence conversion material, wherein the first luminescence conversion material is different from the second luminescence conversion material. In this way, the first color subregion is adapted to emit light of a first color and the second color subregion is adapted to emit light of a second color, wherein the first color is different from the second color.

In particular, color subregions arranged in a plane can expediently contain luminescence conversion materials. The luminescence conversion material is usually arranged between the first electrode and the underside of the light-emitting device when the light-emitting device is designed to emit light from its lower side, and the second electrode is arranged when the light-emitting device is designed to emit light from its upper side. Between the two electrodes and the upper side of the light emitting device.

If the light-emitting device is designed such that light is emitted from its upper side and from its lower side, the luminescence conversion material can also be designed between the first electrode and the lower side and between the second electrode and the upper side, respectively. The color-subregional luminescence conversion material can be applied to the substrate in subregions, for example. Furthermore, the luminescence conversion material can also be arranged on the outer side of the substrate in regions of the substrate corresponding to the subregions or in regions of the encapsulation corresponding to the subregions.

In accordance with at least one embodiment of the luminous means, the color subregions of the luminous means are arranged vertically one above the other. Each color subregion contains at least one organic layer of the layer stack of the luminous means, which organic layer is suitable for generating light. The different layers of the organic layer stack designed to generate light can differ from one another, for example with regard to the emitter material.

In accordance with at least one embodiment of the luminous means, different color subregions of the luminous means contain different emitter materials. This means that the first color subregion contains the first organic emitter material. The second color subregion contains a second organic light emitter material, wherein the first organic light emitter material is different from the second organic light emitter material. Due to the different illuminant materials, the different color partitions are suitable for generating light of different colors from one another.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least one third color subregion which is suitable for emitting light of a third color, wherein the third color is different from the first color and the second color. That is to say, the luminous means contains at least three different color subregions, which emit light of different colors in pairs. Preferably, the luminous means comprises a plurality of third color subregions which are each suitable for emitting light of a third color.

In accordance with at least one embodiment, the luminous means comprises at least one fourth color subregion suitable for emitting light of a fourth color, wherein the fourth color is different from the first color, the second color and the third color. This means that the luminous means contains at least four different color subregions, which emit light of different colors in pairs. Preferably, the light emitting device comprises a plurality of fourth color subregions which are respectively adapted to emit light of a fourth color.

In accordance with at least one embodiment of the luminous means, the luminous means comprises more than four different color subregions, wherein the different color subregions are distinguished from one another by the color of the light emitted therefrom.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least one color subregion which is suitable for emitting white light. Preferably, the luminous means comprises a plurality of color subregions which are each suitable for emitting white light.

In accordance with at least one embodiment of the luminous means, homogeneous color subregions of the luminous means can be controlled jointly. Homogeneous color subregions here mean color subregions that are configured identically and are therefore suitable for emitting light of the same color. Homogeneous color subregions are, for example, characterized by the same organic emitter material and/or the same color filter means and/or the same luminescence conversion material. For example, all first color subregions which are suitable for emitting light of the first color can be controlled jointly.

Co-controllable means that these color zones can be powered at the same time. The same color subregions can then, for example, be supplied with the same current intensity at the same time and for the same duration. This can be achieved, for example, by electrically connecting homogeneous color subregions to one another. For example, one of the electrodes of the luminous means is structured such that all homogeneous color subregions are electrically conductively connected to one another via this electrode.

In accordance with at least one embodiment of the luminous means, different types of color subregions can be controlled independently of one another. That is, for example, the first and second color subregions may be powered independently of each other, such that the first color subregion is powered at a first time and the second color subregion is powered at a second time. For example all first color subregions and all second color subregions may be powered alternately, such that the light emitting device is adapted to alternately emit light of the first and second color. When the first color subregion and the second color subregion are driven simultaneously, the light emitting device emits light of the first and second colors, eg mixed light.

In accordance with at least one embodiment of the luminous means, the luminous means comprises a control device which is designed to regulate an operating state of the luminous means. The control device can be, for example, a switch with which the luminous means can be switched on and off. And preferably, the control device is suitable for adjusting more than two working states of the light emitting device. For example, the control device can be adapted to control different color subregions of the luminous means separately from one another.

In accordance with at least one embodiment of the luminous means, the control device includes a microcontroller.

In accordance with at least one embodiment of the luminous means, the control device is arranged on the first main surface of the substrate of the luminous means. The control device can be, for example, a separate component which is arranged on the first main surface of the substrate at a distance from the organic layer stack of the luminous means. Furthermore, the control device can also contain at least one organic material and be produced together with the layer stack of the luminous means. This enables a particularly space-saving and cost-effective integration of the control device into the luminous means.

In accordance with at least one embodiment of the luminous means, the control device is encapsulated together with the organic layer stack of the luminous means in a common encapsulation. This has proven to be particularly advantageous when the control device, as described above, contains organic materials.

The encapsulation of the luminous means protects the control unit against atmospheric gases, moisture and mechanical loads. A control device, which contains an organic material, which is co-encapsulated with the organic layer stack of the luminous means in particular enables advantageously compactly constructed, flexible luminous means. As encapsulations, in particular, the encapsulations described above, such as caps, thin-plate, thin-film or thin-film encapsulations, come into consideration.

In accordance with at least one embodiment of the luminous means, the control device is designed to control at least two color subregions of the luminous means independently of one another. The control device is then adapted to power the two different color subregions of the luminous means at different times, over different durations and/or with currents of different intensities.

In accordance with at least one embodiment of the luminous means, the control device includes a pulse width modulation circuit. The pulse width modulation circuit is adapted to apply a pulse width modulated signal to the active area of the light emitting device and/or to the color subregions of the active area.

The pulse width modulated signal is an electrical signal, preferably a rectangular signal, a sawtooth signal, a triangular signal or a sinusoidal signal, which is switched on for a certain time t _ein in a fixed basic period and is switched on for the rest of the basic period t _aus off. The time during which the signal is switched on is also referred to here as the pulse duration. The value of the signal during the pulse duration is also referred to here as the pulse height. The ratio t _ein /(t _ein +t _aus ) of the connection time to the fundamental period is called the duty cycle. The duty cycle represents the percentage of time that the rectangular signal is on during the fundamental period.

The pulse height, pulse duration and/or direction of the pulse-width-modulated signal thus vary, for example, periodically. Here, the pulse duration, the interval between pulses and the pulse height are preferably adjustable. In addition, the cut-off voltage level and frequency can be adjusted. The regulation of these parameters of the pulse width modulation circuit can be effected, for example, by a microcontroller which is part of the control unit.

In accordance with at least one embodiment of the luminous means, the control device is adjustable by a user. For example, the user can adjust parameters of the pulse width modulation circuit of the control device.

In accordance with at least one embodiment of the luminous means, the color of the light emitted by the luminous means can be adjusted by the control device. For example, for this purpose the control device supplies certain color subregions of the luminous means with power, so that the desired color perception of the light emitted by the luminous means is produced.

This can be achieved particularly easily, for example, if the luminous means comprise first and second color subregions which are connected to one another in antiparallel. By supplying the organic layer stack with a current in the first direction, the first color subregion operates in the on direction, while the second color subregion is connected in the off direction, so that no current flows through the second color subregion. By simply changing the direction of the current flow, the second color subregion is powered in the conduction direction for a second time, so that light of the second color is emitted from the light emitting device. The first color subregions are connected in the blocking direction during the second period, so that no current flows through the first color subregions.

In accordance with at least one embodiment of the luminous means, the color and the brightness of the light emitted from the luminous means depend on the current density of the current supplying the luminous means. For this purpose, the luminous means has, for example, at least two color subregions, preferably arranged vertically one above the other. The field strength of the electric field generated between the first and second electrodes during operation of the light-emitting device determines in which color subregion the recombination of charge carriers in the active region of the light-emitting device takes place. In this way, for example, the color and brightness of the emitted light can be adjusted via the pulse height and pulse duration of the current flowing through the active region.

In accordance with at least one embodiment, the control device is provided to regulate the current density of the current with which the luminous means is supplied. This means that the control device is preferably adapted to adjust the intensity of the current with which the luminous means are supplied, and/or the duration of the current with which the luminous means are supplied. The color and brightness of the light emitted from the light emitting device preferably depend on the intensity of the current with which the light emitting device is supplied, and/or the duration of the supply of the light emitting device. In this case two, three, four or more colors can be controlled independently of each other.

In accordance with at least one embodiment, the luminous means comprises a sensor which is suitable for determining the chromaticity locus and/or the brightness of the light radiated by the luminous means during operation. The sensor can be arranged, for example, on the first main area in the active region of the luminous means substrate. In particular, the sensor can contain organic materials and be produced together with the organic layer stack of the luminous means. For example, the sensor can be encapsulated together with the organic layer stack of the luminous means by a common encapsulation. The sensors are preferably photodiodes or phototransistors.

Alternatively, the sensor can be designed as a separate component. The sensor can be arranged, for example, on a first main surface of the substrate or on a second main surface facing away from the first main surface. In this case it is not necessary to co-encapsulate the sensor with the organic layer stack of the luminous means.

In accordance with at least one embodiment of the luminous means, the luminous means comprises a control device which is set up to power the luminous means as a function of the measured value determined by the sensor. This means that the control device is suitable for adjusting the luminous means as a function of the chromaticity locus and/or the brightness of the light radiated by the luminous means during operation. The light emitting device comprises, for example, an organic layer stack as described above, wherein the color of the light emitted from the light emitting device depends on the current density of the current with which the light emitting device is supplied. The control device is suitable for adjusting a certain chromaticity locus and a certain brightness of the generated light in that the control device readjusts the current density of the current with which the luminous means is supplied based on the measured values determined by the sensor. In this way, the control device is adapted to adjust a certain color of the light generated by the light emitting means via the regulation loop. In this case, the color can be specified by the user of the luminous means or by the microcontroller of the control device.

In accordance with at least one embodiment of the luminous means, the luminous means comprises at least one connection location, which is provided for electrical contacting of the luminous means. The connection location is electrically conductively connected to at least one electrode of the luminous means, for example via an electrical lead as described above. Via the connection locations, the luminous means can be electrically contacted from outside the luminous means. The connection point can be electrically conductively connected, for example, to a voltage source, a current source or a control unit.

In accordance with at least one embodiment of the luminous means, the connection location is arranged on a second main surface of the substrate facing away from the first main surface of the luminous means substrate. In this case, the connection location is electrically conductively connected to at least one of the electrodes of the luminous means, for example via vias or perforations in the substrate.

Alternatively, it is also possible for the electrically conductive connection between the connection location and at least one electrode of the luminous means to pass over the substrate side. In this case, vias or perforations in the substrate can be omitted.

The connection between the at least one electrode of the luminous means and the connection location can be effected via electrical leads. The electrical lead is formed, for example, as a partially conductive coating of the luminous means, as a conductor track integrated in the substrate or as a contact wire.

In accordance with at least one embodiment of the luminous means, at least one connection location of the luminous means is arranged on a substrate side. The substrate side preferably connects the first main surface of the substrate to the second main surface of the substrate. In the case where the luminous means has more than one connection location, all connection locations of the luminous means can be arranged on a side surface of the substrate or on the second main surface of the substrate. Furthermore, it is also possible for the connection locations to be present both on the side of the substrate and on the second main surface of the substrate.

In accordance with at least one embodiment of the luminous means, at least one connection point of the luminous means is designed as a connection pin. The connection pins can be arranged on the second main surface of the substrate or on a side surface of the substrate. The connection pins contain or are formed of conductive material such as metal.

In accordance with at least one embodiment of the luminous means, at least one connection point of the luminous means is designed as a connection plug. The connection plugs can be arranged on the second main surface of the substrate or on a side surface of the substrate. The connecting plug is designed, for example, as a cinch plug or as a socket plug. It is particularly possible here that the connecting plug has at least two contact regions that are electrically insulated from one another. The first contact region is electrically conductively connected to the first electrode of the luminous means, for example via a first electrical lead. The second contact region is accordingly electrically conductively connected to the second electrode of the luminous means, for example via a second electrical lead.

In accordance with at least one embodiment of the luminous means, at least one connection point of the luminous means is designed as a recess. The recesses are, for example, holes or bores introduced into the substrate on the side of the substrate or on the second main surface of the substrate.

The sides of the recess are at least partially conductive here. For example, the sides of the recess can be coated electrically conductively.

In accordance with at least one embodiment of the luminous means, at least one connection point of the luminous means is designed as a socket. The socket can be implemented, for example, as a cinch socket or as a jack socket. The socket has two conductive contact areas that are electrically insulated from each other. The first contact region is electrically conductively connected to the first electrode of the luminous means, for example via a first electrical lead. The second contact region is electrically conductively connected to the second electrode of the luminous means, for example via a second electrical lead.

In accordance with at least one embodiment of the luminous means, the luminous means has at least one connection location comprising a plurality of connection pins. The connection location includes at least one first connection pin, which is electrically conductively connected to the first electrode of the luminous means. The connection location also includes a second connection pin, which is electrically conductively connected to the second electrode of the luminous means. Furthermore, the connection locations can also contain further connection pins, which are electrically conductively connected, for example, to a control device of the luminous means. In this way, the control device can be controlled from outside the luminous means via corresponding connection pins.

In accordance with at least one embodiment of the luminous means, the luminous means has a control device and a connection point which is electrically conductively connected to the control device. Electrical signals can be fed to the control device via the connection points. In this way, the control device can be adjusted from outside the light emitting device, for example by a user.

In accordance with at least one embodiment of the luminous means, at least one connection point of the luminous means is designed as a connecting track extending along the side of the substrate. The connecting track is preferably electrically conductively connected to at least one electrode of the luminous means.

The connecting rail can, for example, be designed in the shape of a cylinder or in the manner of a cut cylinder. Preferably, the connecting track extends over at least 60% of the side length of the substrate on which the connecting track is arranged. Particularly preferably, the connecting track extends over at least 80% of the side length of the substrate on which the connecting track is arranged.

In accordance with at least one embodiment of the luminous means, at least one of the connection locations is designed for mechanically fixing the luminous means. Via the connection locations, the luminous means can be mechanically connected, for example, to other luminous means or to the carrier. It is particularly preferred if the connecting locations are designed for mechanical and electrical fixing of the luminous means. This means that the luminous means are electrically contacted and mechanically connected to another luminous means or to the carrier via the same connection point.

Furthermore, a lighting device is proposed. The lighting device comprises at least one luminous means as explained in connection with at least one of the above-mentioned embodiments.

According to at least one embodiment of the lighting device, the lighting device comprises at least two light emitting devices which are electrically and mechanically connected to each other. It is possible here to connect the luminous means directly to each other electrically and mechanically. However, it is also possible for the luminous means to be electrically and mechanically connected to one another via the carrier of the lighting device.

According to at least one embodiment of the lighting device, the lighting device comprises a first light emitting device and a second light emitting device. The first luminous means has at least one connection location designed as a connection pin. The connection pins are arranged on a side surface of the first luminous means substrate. The second luminous means has at least one connection location configured as a recess in a side surface of the substrate of the second luminous means. The connection pins of the first luminous means fit into the recesses of the second luminous means. The first and second luminous means are electrically conductively connected to one another via their connection points (connection pins and recesses).

The lighting device can also contain further luminous means, which are electrically conductively connected to the first or second luminous means in the described manner.

In accordance with at least one embodiment of the lighting device, the first and the second luminous means are also mechanically connected to one another by means of a connection point by means of a press fit.

For this purpose, for example, the first connection point of the first luminous means is designed as a connection pin. The second connection point of the second luminous means is then configured as a recess. The diameter of the connecting plug of the first light emitting device is selected to be greater than or equal to the diameter of the recess of the second light emitting device. By pressing the connection pins of the first luminous means into the recesses of the second luminous means, a firm mechanical connection is produced between the first and second luminous means. Preferably, the first and second light-emitting devices are mechanically and electrically connected to each other through connecting pins and corresponding recesses.

In accordance with at least one embodiment of the lighting device, the first and the second luminous means are mechanically connected to one another by means of a connection location via a plug connection. For this purpose, for example, the first luminous means has a first connection location configured as a connection plug. The second luminous means has a second connection location configured as a socket. The first luminous means is mechanically connected to the second luminous means by inserting the connection plug of the first luminous means into the connection socket of the second luminous means to form a plug connection. Preferably, the first luminous means and the second luminous means are also electrically connected to each other via a plug connection. The plug connection between the first and the second luminous means is preferably designed to be detachable, preferably such that the first and the second luminous means can be detached from each other again by applying a small mechanical force. In this way, for example a faulty light emitting device can be simply removed from the lighting device and replaced with a new light emitting device.

In accordance with at least one embodiment of the lighting device, the lighting device comprises a carrier to which at least one luminous means of the lighting device is mechanically connected.

According to at least one embodiment of the illuminating device, the illuminating device comprises a carrier to which at least one light-emitting component of the illuminating device is electrically connected. It is possible here that the luminous means of the lighting device are also electrically connected to one another via the carrier.

In accordance with at least one embodiment of the lighting device, the lighting device comprises a carrier to which at least one light-emitting component of the lighting device is mechanically and electrically connected. In the case of the lighting device having a plurality of luminous means, the luminous means are mechanically connected to one another via the carrier. Furthermore, it is also possible that the luminous means are also electrically connected to one another via the carrier.

According to at least one embodiment, the support body is designed as a support plate. This means that the support body is formed from a solid body with two opposing main faces, which are connected to each other by side faces.

In accordance with at least one embodiment of the lighting device, the carrier is designed as a grid. In this case, the support body can be designed in the manner of a support plate with a plurality of perforations. In this way, a carrier with the lowest possible weight is achieved.

In accordance with at least one embodiment of the lighting device, the carrier is designed as a cable system. The carrier then contains at least two cables which contain or are formed from an electrically conductive material. The luminous means of the lighting device can be electrically contacted via the cable of the carrier. For example the cables of the lighting devices are parallel or substantially parallel to each other. In this case, one or more luminous means can be arranged and electrically connected between each two cables of the carrier.

In accordance with at least one embodiment of the lighting device, the carrier is designed as a rod system. The carrier then comprises at least two rods which contain or are formed from an electrically conductive material. The luminous means of the lighting device can now be electrically contacted via the rod. For example the rods of the lighting device are parallel or substantially parallel to each other. In this case, one or more light-emitting devices can be arranged between each two rods of the carrier and electrically connected.

In accordance with at least one embodiment of the lighting device, at least one luminous means of the lighting device is mechanically and electrically connected to the carrier via a connecting point designed as a connecting pin. Preferably, all luminous means of the lighting device are mechanically and electrically connected to the carrier via at least one connecting point designed as a connecting pin. For this purpose, the carrier can have a plurality of recesses, for example. The connection points of the luminous means, which are designed as connection pins, then fit into corresponding recesses of the carrier body. The mechanical connection between the luminous means and the carrier is here preferably achieved by a press fit.

In accordance with at least one embodiment of the lighting device, at least one luminous means of the lighting device is mechanically and electrically connected to the carrier via at least one connection point designed as a connection plug. Preferably, all luminous means of the lighting device are mechanically and electrically connected to the carrier via at least one connection point designed as a connection plug. For this purpose, the carrier can have, for example, a plurality of recesses each designed as a connection socket. The connection plugs of the luminous means then fit into corresponding sockets of the carrier. The mechanical connection between the luminous means and the carrier is preferably designed to be detachable, so that the luminous means can be detached from the carrier by applying a small mechanical force. In this way, damaged luminous means can be replaced particularly simply.

In accordance with at least one embodiment of the lighting device, at least one luminous means of the lighting device is mechanically and electrically connected to the carrier via at least one connecting point designed as a connecting rail. In this case, it is preferred that all luminous means of the lighting device are connected to the carrier at least via one connection rail each. In this case, the support body is preferably designed as a cable system or rod system.

The carrier comprises, for example, two mutually parallel cables or rods which are designed to be electrically conductive. At least one luminous means of the lighting device comprises at least two connecting locations designed as connecting rails. The connecting rails extend on the sides of the luminous means facing away from each other. Each connecting rail fits into the cables or rods of the support body such that the luminous means are arranged between the cables or rods of the support body. Preferably, a plurality of luminous means are connected to the carrier in this way.

According to at least one embodiment of the lighting device, the lighting device comprises a first light emitting device and a second light emitting device, wherein the first and second light emitting devices emit light of different colors during operation. In this case, it is firstly possible for the first and the second luminous means to differ from one another with respect to the organic emitter materials, luminescence conversion materials or color filters used. The first and second luminous means are then also designed differently.

However, it is also possible to use luminous means as described above as first and second luminous means which are suitable for emitting light of at least one first and second color during operation. This can be achieved, for example, as described above, in that the first and the second luminous means each contain at least two color subregions, which are suitable for emitting light of mutually different colors. That is, the lighting device comprises at least one multicolor light emitting device, as described above.

In accordance with at least one embodiment of the lighting device, the lighting device comprises a plurality of luminous means which are suitable for emitting light of mutually different colors. That is, the lighting device includes a plurality of multicolor light emitting devices.

In accordance with at least one embodiment of the lighting device, an optical element comprising a diffuser is arranged downstream of the luminous means of the lighting means in the radiation direction of the luminous means. In this case, for example, the support body is configured as a support plate. A plurality of light-emitting devices are then applied on the support plate in mechanical and electrical connection with said support plate. An optical element comprising a diffuser is arranged behind the side of the luminous means facing away from the support plate. The optical element can be formed, for example, from a light-transmissive plate, such as a glass plate, into which light-scattering particles are introduced. Alternatively, it is also possible to roughen the surface of the light-transmitting plate, so that the transmitted light is diffusely scattered due to refraction of the light as it passes through the plate. Optical elements, such as diffuser plates, can be mechanically fastened to the carrier of the lighting device.

The optical element arranged downstream of the at least one luminous means of the lighting device is preferably suitable for mixing the light generated by the luminous means so that a viewer can no longer perceive the modular structure of the lighting means formed by a plurality of luminous means. The lighting device looks as if the lighting device has a single light-emitting surface, wherein the shape and area of the light-emitting surface are determined by the shape of the optical element and the area through which the light passes.

In accordance with at least one embodiment of the lighting device, the lighting device has a plurality of luminous means arranged in a matrix. "Array-like arrangement" means that the light emitting devices are arranged in rows and columns. The lighting device also has a control device adapted to control each luminous means of the lighting device independently of the remaining luminous means. The control device can then supply each luminous means of the lighting device with a predeterminable operating current at a predeterminable time for a predeterminable period of time.

Due to the array-like arrangement of the light emitting devices and the control device adapted to control each light emitting device independently of other light emitting devices of the lighting device, the lighting device is suitable for forming a coarse-grained display device (grobkoernige Anzeigevorrichtung). Each light emitting device then corresponds to a pixel of the display device. In this way, the lighting device is suitable for use as a coarse-grained display, advertising sign or signal generator. It is also possible to configure the lighting device as a seven-segment display to display numbers and letters. The lighting device is also particularly well suited as an emergency lighting device, which displays, for example, an escape route by means of symbols or words.

The luminous means of the lighting device configured as a coarse-grained display are preferably, as described above, connected mechanically and electrically to the carrier via connection points and/or are electrically and mechanically connected to each other via connection points.

Particularly preferably, the lighting device, which is designed as a coarse-grained display device, comprises at least one multicolor light-emitting device, which is suitable for emitting light of a first color during a first time period and light of a second color during a second time period. Light in which the first color is different from the second color. As described above, this can be achieved, for example, by providing the luminous means with a plurality of color subregions which are suitable for generating light of different colors from one another. Alternatively, the color of the light generated by the luminous means during operation can depend, for example, on the current density with which the luminous means are operated.

The use of light emitting devices adapted to emit light of different colors enables the use of the lighting device as a coarse-grained display device, which can be used particularly widely.

In accordance with at least one embodiment of the lighting device, the carrier of the lighting device contains a textile material. The luminous means of the lighting device are then at least mechanically connected to the carrier. The mechanical connection can be enhanced, for example, by a hook connection between the textile material and the hook layer applied to the second main surface of the luminous means.

Furthermore, conductor strips (eg thin metal wires) can be integrated in the textile material. The conductor tracks can be braided with the carrier material, for example. Via the conductor track, the luminous means of the lighting device can be electrically contacted via the carrier. Alternatively, the luminous means of the lighting device can have its own power supply in the form of a battery, accumulator or capacitor.

The luminous means of the lighting device with the carrier comprising the textile material are preferably designed to be flexible. Particularly preferably, the luminous means are designed with a similar flexibility to the carrier. This means that the luminous means can be adapted as closely as possible to deformations (for example due to folding) of the carrier on which they are applied.

In accordance with at least one embodiment of the lighting device, the carrier comprising the textile material is designed as a curtain. At least one, for example flexible, luminous means is applied to the curtain. In this case it is possible for a large part of the surface of the curtain facing the at least one luminous means to be covered by the at least one luminous means.

When the curtain is closed, the main surface of the curtain covered by the at least one luminous means forms the luminous surface of the lighting device.

For example, installing curtains in front of windows. The curtain then forms a lighting device whose luminous area corresponds approximately to the area of the window covered by the curtain. In this way, the room is illuminated by means of the lighting device, which corresponds to the window in terms of size and light emission direction. The lighting device preferably illuminates the room with such a curtain with daylight-like light.

In accordance with at least one embodiment of the lighting device, the carrier comprising the textile material is designed as a clothing item. At least one light emitting device is mechanically secured to the piece of clothing. The mechanical connection can be achieved, for example, by a hook connection between the textile material of the clothing part and the hook layer applied to the second main side of the luminous means. As described above, the luminous means are here preferably designed to be flexible and have a flexibility that approximately corresponds to the flexibility of the clothing part. As described above, it is preferred that the light emitting device is adapted to generate light of at least two different colours. The luminous means can then be used as a signaling device with which the wearer of the article of clothing can optically display information. For this purpose, the luminous means are connected to a control device, which can be adjusted by the wearer of the article of clothing.

Alternatively or additionally, it is possible for the control device to adjust the operating state of the luminous means, ie for example the color of the light emitted by the luminous means, as a function of certain measured values. To this end, the lighting device comprises at least one sensor adapted to determine a bodily function of the wearer of the piece of clothing, such as heart rate, skin resistance and/or body temperature of the wearer. Depending on the determined value, the control device then adjusts the operating state of the luminous means. The luminous means are also suitable for optically reproducing information on the bodily functions of the wearer of the item of clothing.

A lighting device whose support body is designed as a piece of clothing can also be used, for example in street traffic, to improve the visibility of a person wearing the piece of clothing. This piece of clothing is particularly well suited for cyclists and walkers.

Furthermore, an optical display device is proposed. The optical display device includes a display element and at least two light emitting devices designed according to at least one of the above-mentioned embodiments. The luminous means here form a backlight for the imaging element.

The backlighting device is preferably designed like at least one lighting device described above.

According to at least one embodiment of the display device, the backlight device of the display device comprises at least two light emitting devices that are electrically and mechanically connected to each other. It is possible here to connect the luminous means directly to each other electrically and mechanically. However, it is also possible for the luminous means to be electrically and mechanically connected to one another via the carrier of the backlight of the display device. The luminous means of the backlight arrangement can then, as described above, be mechanically and/or electrically connected to one another and/or to the carrier via connection points configured as connection pins, connection plugs, connection pins, connection holes or sockets.

The imaging element of the display device may be, for example, an LCD panel. The imaging element is arranged directly behind the luminous means of the backlight in the direction of radiation. That is to say, the imaging element is directly backlit by the light emitting device. The modular structure of the backlight device for the imaging element consisting of two or more light-emitting devices enables particularly large-area backlighting. Particularly large display devices can be realized in this way. Furthermore, due to the modular design of the backlight of the display device, faulty luminous means of the backlight can also be replaced particularly simply.

In accordance with at least one embodiment of the optical display device, at least one luminous means of the display device is adapted to emit white light during operation. Preferably, all light emitting devices of the backlight arrangement of the display device are adapted to emit white light.

In accordance with at least one embodiment of the display device, the light emitted by the luminous means of the display device during operation is mixed to form white light. That is to say, the display device comprises, for example, a light emitting device suitable for emitting green light, a light emitting device suitable for emitting red light and a light emitting device suitable for emitting blue light. The luminous means are then preferably arranged in such a way that the color perception of white is adjusted by mixing the light of the individual luminous means. To this end, an optical element comprising a diffuser can be arranged between the luminous means and the imaging element. The optical element is, for example, a diffuser plate, which, as described above, is suitable for mixing the light generated by the light emitting device.

According to at least one embodiment of the lighting device, the lighting device comprises a luminous means described herein as a first light source and as a further second light source.

The luminous means is preferably designed in such a way that it is designed to be transparent at least to the light generated by the organic layer stack and also to the light of the second light source.

According to at least one embodiment, the second light source is an incandescent lamp, a light-emitting diode module ("LED module" for short), at least one single light-emitting diode ("LED" for short), a cold-cathode lamp, a Laval lamp, a fluorescent lamp or an organic light emitting diode. Diodes ("OLEDs" for short).

The LED module contains one or more LEDs arranged on a support. The carrier can be, for example, a conductor board, for example a metal-core printed circuit board. Furthermore, the LED module can have beam-shaping optics which are arranged downstream of the LEDs in the emission direction of the LEDs. The beam-shaping optical system is formed, for example, at least partially according to the type of one of the following optical elements: Compound Parabolic Concentrator (CPC), Compound Elliptic Concentrator (CEC), Compound Hyperboloid Concentrator (Compound Hyperbolic Concentrator, CHC). Furthermore, the beam-shaping optics can be lenses.

According to at least one embodiment, the light emitting device emits light of a first color, and the second light source emits light of a second color different from the first color.

In accordance with at least one embodiment, the luminous means are designed as dimmbars.

According to at least one other embodiment, the second light source is designed to be dimmable.

The dimming of the light-emitting device and the second light source can be realized, for example, by using a PWM circuit that generates a pulse width modulated signal (PWM signal), or by using a conventional dimmer.

In accordance with at least one embodiment, the luminous means is designed to be flexible.

In accordance with at least one embodiment, the luminous means is designed as a lampshade, which is arranged, for example, around or on the second light source.

According to at least one embodiment, the luminous means and the second light source are arranged relative to each other such that light from the second light source is emitted by the luminous means.

A lighting device wherein:

- the light emitting device emits light of a first color, the second light source emits light of a second color different from the first color,

- at least one of the two light sources is dimmable, and

- The light emitting device and the second light source are arranged relative to each other such that the light of the second light source passes through the light emitting device, hereinafter referred to as "colour-variable lighting device".

Preferably, the luminous means of the color-variable lighting device are designed to be transparent to visible light, in particular light generated by the organic layer stack and light emitted by the second light source.

The color-variable lighting device is adapted to emit mixed-color light, which includes the light of the light-emitting device and the light of the second light source. This brings about the advantage that by changing the color and brightness of the luminous means and/or of the second light source, the chromaticity coordinate and the brightness of the lighting device can be changed. Here, the brightness of one of the light sources (the light emitting device or the second light source) can be kept constant, and the brightness of the other light source can be changed, or the brightness of both light sources can be changed. Thus, the color and brightness of the light of the lighting device can be easily matched to a certain occasion or hue.

In accordance with at least one embodiment of the color-variable lighting device, the luminous means emit light in the yellow spectral range and the second light source emits light in the blue spectral range. It is also possible for the luminous means to emit light in the blue spectral region and the second light source to emit light in the yellow spectral region. A color-variable lighting device is thus advantageously realized, which emits light with a chromaticity coordinate in the white region of the CIE standard color table. The chromaticity of the mixed-color light of the color-variable lighting device by varying the brightness of the second light source and/or the luminous means, ie by partially adapting the color of the blue and yellow light to the mixed-color light of the color-variable lighting device The coordinates can vary within a wide range of the CIE standard color table, especially to match desired values. In particular, it is possible to adjust the different white tones of the mixed light and to match them to the respective occasion.

Furthermore, besides yellow and blue, the light emitting device and the second light source of the color-variable lighting device can also have other colors different from each other. If the two light sources (the light source and the second light source) are designed to be dimmable, then the color of the mixed-color light of the lighting device can be adjusted smoothly from the light color of the light source to the light color of the second light source.

In particular, it is possible here to design the luminous means as the above-described multicolor luminous means with at least two color subregions. Such a multicolor luminous means enables a color-variable lighting device which, for example, can generate white light with a particularly large number of white tones and/or a high color rendering index (CRI).

According to at least one embodiment of the color-variable lighting device, the light-emitting device emits light of a first color in the warm white region of the CIE standard color table, and the second light source emits light of a second color in the cool white region of the CIE standard color table . It is also possible for the luminous means to emit light of a first color in the cool white range of the CIE standard color scale and for the second light source to emit light of a second color in the warm white range of the CIE standard color scale. The chromaticity coordinates of the mixed-color light of the color-variable lighting device can be adjusted between cool white and warm white. Such a color-variable lighting device can be used, for example, as a light source in private areas where, for example, a cool white light is preferred during working conditions, and the cool white light source can be quickly and easily dimmed by the user and increased during the relaxation phase. The warm white part of mixed light, which can be changed into warm white light.

It is particularly preferred if the luminous means of the color-variable lighting device are designed as lamp shades. The lampshade is for example arranged around or on the second light source. Particularly preferably, the luminous means are designed to be flexible here.

According to at least one embodiment, the light emitting device is designed to be flexible, so that the shape of the light emitting device can be changed during use.

A color-variable lighting device with a (mainly for decoration) second light source, such as a Laval lamp, is preferably used for decoration purposes, for example for bars or as floor lighting for dance halls.

Furthermore, color-variable lighting devices can be used in light therapy for medical purposes.

According to at least one embodiment of the lighting device, the main surface of the light-emitting device emitting light and the front surface of the second light source emitting light are arranged on a common plane. In this case, the second light source can be, for example, an LED module arranged in the radiation-emitting front side of the luminous means. In this case, it is particularly preferred if the LED module is arranged centrally in the radiation-emitting main area of the luminous means. Such an arrangement can be used, for example, as a decorative element.

Furthermore, a storage furniture (Ablagemoebel) is proposed. The storage furniture includes a radiation emitting component. In particular, the radiation-emitting component can be a luminous means according to at least one embodiment described here. In particular, the storage furniture can also be a lighting device according to at least one embodiment described herein. That is, the storage furniture may have any of the features of the light emitting devices and lighting arrangements described herein. The embodiments described below relate in particular to a storage furniture. The light emitting devices and lighting arrangements described herein may also have any of the features of the storage furniture described herein.

For storage surfaces on which objects or objects are placed, for example for storage or display, it is desirable that, in addition to being able to be placed on the storage surface, the objects or objects can also be illuminated. The desire for lighting can have functional reasons as well as aesthetic reasons. For this purpose, lighting devices are usually installed around (ie on or beside) the storage surface, so that the storage surface and possibly also the surroundings are illuminated as desired.

Storage furniture according to one embodiment of the invention comprises in particular

- a planar storage element with at least one storage surface and at least one radiation-emitting part with an active region, which emits electromagnetic radiation during operation, and

- At least one holding device for holding the storage element.

In particular, the storage surface can be used for placing and/or storing objects thereon.

In another embodiment, the radiation emitting part is planar. In this case, “flat-shaped” can mean that the radiation-emitting component extends contiguously over a surface area with an area of at least a few square millimeters, preferably a few square centimeters, particularly preferably at least one or several square decimeters or more. In particular, the area of the flat, radiation-emitting component is of the order of magnitude of the storage area.

In a preferred embodiment, the radiation-emitting component is an organic radiation-emitting component, in particular an organic light-emitting diode (OLED). The OLED can here comprise organic layers or a layer sequence having at least one organic layer which has an active region which can emit electromagnetic radiation during operation. Furthermore, the OLED can comprise a first electrode and a second electrode, wherein an organic layer or a layer sequence having at least one organic layer can be arranged between the first and second electrodes, wherein the organic layer has the active region. The first and second electrodes can be suitable for injecting “holes” or electrons into the active region, where they can recombine to emit electromagnetic radiation.

Furthermore, the first electrode can be arranged on the substrate. An organic layer or a layer sequence comprising one or more functional layers formed from organic materials can be applied to the first electrode. The functional layer, which may contain the active region, may contain, for example, an electron-transport layer, an electroluminescent layer and/or a hole-transport layer. A second electrode can be applied on the functional layer or on at least one organic layer.

For example, the substrate may comprise glass, quartz, plastic film, metal, metal thin film, silicon wafer, or any other suitable substrate material. For example, the substrate can also be designed as a multilayer layer sequence or laminate. The substrate can advantageously be transparent to at least a portion of the electromagnetic radiation if the organic radiation-emitting component is designed as a so-called "bottom emitter", ie electromagnetic radiation generated in the active region can emerge through the substrate.

According to at least one embodiment, at least one electrode contains a transparent conductive oxide, a metal or a conductive organic material, or is formed from one of these.

In bottom light configurations, the first electrode may advantageously be transparent to at least part of the electromagnetic radiation. The transparent first electrode, which can be designed as an anode and thus can be used as positive charge or “hole” injection material, can for example contain or be formed from a transparent conductive oxide. Transparent conductive oxides ("TCO" for short) are transparent conductive materials, usually metal oxides, such as zinc oxide, tin oxide, cadmium oxide, titanium oxide, indium oxide or indium tin oxide (ITO). In addition to binary metal oxides such as ZnO, SnO ₂ or In ₂ O ₃ , ternary metal oxides such as Zn ₂ SnO 4 , CdSnO ₃ , ZnSnO _{3 ,} MgIn ₂ O ₄ , GaInO ₃ , Zn ₂ In ₂ O ₅ or In ₄ Sn ₃ O ₁₂ or mixtures of different transparent conductive oxides also belong to the TCO group. Furthermore, the TCO does not necessarily have to correspond to a stoichiometric composition, but can also be p- or n-doped. Alternatively or additionally, the first electrode can also contain a metal, for example silver.

A layer sequence having at least one organic layer can contain polymers, oligomers, monomers, small organic molecules (“organic small molecules”) or other non-polymeric organic compounds or combinations thereof. It can be particularly advantageous if the functional layer of the layer sequence is designed as a hole-transport layer in order to be able to inject holes efficiently into the electroluminescent layer or electroluminescent region. Those structures concerning active regions or other functional layers and regions are known to those skilled in the art, especially with regard to materials, construction, function and structure, and are therefore not explained in detail here.

The second electrode can be designed as a cathode and thus serve as electron-inducing material. As cathode material, especially aluminum, barium, indium, silver, gold, magnesium, calcium or lithium and their compounds, compositions and alloys have proven to be advantageous. Additionally or alternatively, the second electrode can also be designed to be transparent. This means in particular that OLEDs can also be designed as "top emitters", that is to say that the electromagnetic radiation generated in the active region can exit on the side of the organic radiation-emitting component facing away from the substrate.

If the electrodes containing or formed from the metal layer are to be designed to be permeable to the light emitted by the organic layer stack, it can be advantageous if the metal layer is designed to be sufficiently thin. Preferably, such a semitransparent metal layer has a thickness of between 1 nm and 100 nm, limit values included.

Furthermore, the first electrode can be designed as cathode and the second electrode can be designed as anode, wherein the organic radiation-emitting component can be designed as bottom emitter or top emitter. The organic radiation-emitting component can also be configured simultaneously as a top emitter and as a bottom emitter.

Furthermore, the organic radiation-emitting component may contain an encapsulation in order to achieve protection of the electrodes and/or the functional area against moisture and/or oxidizing substances such as oxygen. In this case, the encapsulation can surround the entire organic radiation-emitting component, including the substrate. Alternatively the substrate and/or at least one electrode may form part of the encapsulation. The encapsulation here can comprise one or more layers, wherein a layer of the encapsulation can be, for example, a planarization layer, a barrier layer, a water and/or oxygen absorption layer, a connection layer or a combination thereof.

Alternatively, the radiation-emitting component can be designed as an electroluminescent film. In this case, an active region comprising an inorganic material, for example based on zinc sulfide, may be arranged between the first and second electrodes. The electrodes here can have the features and structures as described in connection with the organic radiation-emitting component. The active region may contain suitable dopants such as copper or europium.

The electromagnetic radiation generated from the active region of the radiation-emitting component may in particular have a spectrum with wavelengths in the ultraviolet to infrared spectral region. In particular it can be advantageous when the spectrum contains at least one wavelength visible to a viewer. The spectrum of electromagnetic radiation can advantageously also contain multiple wavelengths, so that the observer can create a color-mixed luminous perception. It is possible for this that the radiation-emitting component itself can generate electromagnetic radiation with a plurality of wavelengths, or a part of the electromagnetic radiation generated by the organic radiation-emitting component or all of the electromagnetic radiation generated by the radiation-emitting component (which has, for example, in blue and/or a first wavelength in the green spectral region) is converted by the wavelength conversion substance into a second wavelength, for example in the yellow and/or red spectral region. To this end, a layer or region containing a wavelength-converting substance can be arranged after the active region. In particular, the wavelength-converting substance can be arranged in a structured manner in subregions downstream of the active region, so that different subregions of the radiation-emitting component can induce different colored luminescence perceptions in the viewer. Suitable wavelength-converting substances and layers containing wavelength-converting substances as well as their structuring are known to those skilled in the art with regard to their configuration and their function and will not be explained in detail here.

In a further embodiment, the first and/or the second electrode of the radiation-emitting component is structured, for example in the shape of electrode strips which can also run parallel to each other. This means in particular that the first and/or the second electrode has subregions which can be connected independently of one another to a current source and/or a voltage source. The radiation-emitting component can thus have different operating states depending on the subregion contacting the first and/or the second electrode, which means that different emission patterns and light distributions of the radiation-emitting component can be produced. Furthermore, the active region of the radiation-emitting component (for example, an organic layer or a layer sequence comprising at least one organic layer in the case of an organic radiation-emitting component) in different subregions of the first and/or second electrode can, for example, each contain Different materials are used and are also structured, for example, so that the radiation-emitting component can emit, for example, electromagnetic radiation of different wavelengths in different operating states. Thus, according to different situations in which partial areas of the first and/or second electrodes are in contact with the current source and/or the voltage source, the viewer can have different or mixed-color lighting sensations.

In particular, the first electrode can be structured such that it is formed as parallel strips. In this case, groups of parallel strips can each together form subregions, which can be connected to current and/or voltage sources independently of one another. Alternatively or additionally, the second electrode can also be structured in this way. Preferably, the first and second electrodes can each be structured as parallel strips, wherein the parallel strips of the first electrode can be perpendicular to the parallel strips of the second electrode. Alternatively, the strips of the first electrode and the strips of the second electrode can also be parallel to each other. In this case, the first and/or the second electrode can each have a partial area independent of the parallel strips, so that a plurality of illumination patterns can be generated. Furthermore, it is also possible, for example, to form the first electrode as a plane and the second electrode as an icon, or vice versa, to form the first electrode as an icon and the second electrode as a plane, so that the luminescence sensation at the viewer can be Perceived in conjunction with the impressions represented by the illustrations.

In a further embodiment, the storage element can have at least partial regions which are transparent to the electromagnetic radiation generated by the radiation-emitting part. In a preferred embodiment, "transparent" may mean that a transparent element or component is permeable for at least a partial range of the radiation spectrum emitted by the organic radiation-emitting component. Preferably, "transparent" may also mean permeable for the entire spectrum. The storage element, which has at least a transparent partial region, can for example contain glass or transparent plastic or consist of glass or transparent plastic. Alternatively, the storage element can have at least a subregion that is opaque to the electromagnetic radiation generated by the radiation-emitting component. For this purpose, the storage element can contain or be made of opaque glass, opaque plastic, metal or wood, or a combination thereof.

In a further embodiment of the invention, the radiation-emitting part can be a component part of the storage element and be integrated, for example, in the planar storage element. It is possible here to arrange the radiation-emitting part inside the storage element and to emit electromagnetic radiation emitted during operation via one of the outer surfaces of the storage element to the outside. The outer surface is at least partially transparent to electromagnetic radiation generated by the organic radiation-emitting component.

In a particularly preferred embodiment, the storage element has a glass substrate, on which the radiation-emitting component is mounted; and a further glass pane, which is arranged on the side of the organic radiation-emitting component facing away from the glass substrate and, for example, can The encapsulation or part of the encapsulation realizing the radiation emitting component. In this case, the side of the glass substrate facing away from the radiation-emitting part or the side of the glass pane facing away from the radiation-emitting part can have a storage surface. Alternatively, the storage element can also have a plastic substrate and/or a plastic plate.

In particular, the storage element can be designed as a substrate of the radiation-emitting component. Alternatively, an organic radiation-emitting component with a substrate can be applied on the storage element. Alternatively or additionally, the encapsulation of the radiation-emitting component is also designed as a storage area. The radiation-emitting component can have a radiation exit surface, in particular for electromagnetic radiation generated in the active region. The exit surface can be at least a part of the outer surface of the storage element. In this case, the outer surface can be a storage surface. This can mean that objects that can be arranged on the storage surface can be illuminated from the storage surface. Alternatively or additionally, the outer surface can also be, for example, a surface of the storage element that differs from the storage surface. Alternatively or additionally, the exit surface can also be an outer surface which is arranged on the side facing away from the storage surface. This can mean that areas or objects located on the side facing away from the storage surface can be illuminated.

In another embodiment, the storage element has an upper side, a lower side and side surfaces. Here, the organic radiation emitting component may be mounted on at least one of the upper side, the lower side and the side.

In another embodiment, the holding device has, for example, a rail, a holding angle, a support arm, a beam, a frame, a furniture wall or a combination thereof. In particular, the holding device can also have a plurality of the aforementioned elements or a combination thereof. Furthermore, the holding device can also have radiation-emitting components.

In a further embodiment, the storage element has a holding element with which the storage element can be attached to the holding device. In one embodiment, "mountable" can mean that the storage element can be fixed rigidly on the holding device. For rigid fastening, screw connections, clamp connections or plug connections as well as suspension or gluing are mentioned here as examples only. Alternatively or additionally, "mountable" can also mean that the storage element is arranged on the holding device such that it is not rigidly fixed. In this regard, it is only mentioned by way of example that the storage element can be placed on the holding device or a part of the holding device. The holding element can, for example, contain or be a hook, snap, rail, opening, hole, thread or bearing surface or a combination thereof, in particular.

In a further embodiment, the storage element has at least two electrical contacts for electrically contacting the radiation-emitting component. The at least two electrical contacts can here preferably be suitable for contacting the first and/or the second electrode. Particularly preferably, the first and second electrodes or subregions of the first and/or second electrodes are contacted via different electrical contacts. Furthermore, electrical leads are required for electrical contacting of the electrical contacts with the electrodes or subregions of the structured electrodes. In this case, the electrical contacts can be designed, for example, in the form of strips, circles or n-angles, where n is an integer greater than or equal to 3.

In a preferred embodiment, the holding element contains electrical contacts. Thus, for example, the holding of the storage element and the electrical contacting of the radiation-emitting part can be achieved in a space-saving, compact and/or aesthetically pleasing manner.

In a further embodiment, the holding device has a holder, whereby the storage element can be mounted on the holding device via its holding element. The holder here can contain, for example, or hooks, clasps, rails, pads, studs, screw connections, plug connections or clamp connections or corner connections or combinations thereof.

In a further embodiment, the holding device has at least two electrical lead contacts for electrically contacting the organic radiation-emitting component, wherein the electrical contacts of the storage element are electrically connected to the electrical lead contacts when building or installing the storage furniture . It is particularly preferred if the holder contains electrical lead contacts.

In other embodiments, the electrical contacts and the electrical lead contacts can be designed, for example, as mating parts of a plug-in connection, a clamp connection or a screw connection. In this way, in particular reliable and stable electrically conductive contacting of the radiation-emitting component can be achieved. Alternatively, the electrical contact and/or the electrical lead contact can also be designed as a planar contact surface or have elastic elements.

In another embodiment, the storage element may have an n-gonal shape, where n is an integer greater than or equal to three. Particularly preferably, the storage element can have a square or rectangular shape. Furthermore, the shape can also be, for example, a circle or an oval or a combination of the above-mentioned shapes. In particular, the storage surface of the storage element can have one of the above-mentioned shapes or a combination thereof, in which case a square or rectangular shape with chamfered corners, for example, is particularly preferred. In this case, holding elements and/or electrical contacts can be provided on each or at least one corner of the storage element or of the storage surface. In particular, the storage furniture can have a holding device or be in contact with a holding device at each or at least one corner of the storage element or of the storage surface.

In particular, the holding device can be adapted to hold the storage element such that at least a partial area of the storage surface is parallel to the base on which the storage element can be arranged. The storage furniture is thus for example parked or placed on the base. Alternatively or additionally, the holding device can be adapted to hold the storage element such that at least a partial area of the storage surface is substantially perpendicular to a wall on which or in front of which the storage furniture can be mounted or placed. “Essentially perpendicular” can mean here that the storage surface should form such an angle with the wall that objects arranged on the storage surface can remain thereon. Since the walls may not be perfectly parallel to the direction of gravity, it may be desirable that the angle between the wall and the storage surface deviate from 90 degrees to a similar extent.

In another embodiment, the storage furniture has a plurality of storage elements. Such storage furniture can be, for example, a shelf or a cabinet with a plurality of storage elements. In particular, it is possible here that the radiation-emitting part of the storage element can illuminate a further storage surface, for example, of a storage element arranged underneath. Here, a plurality of storage elements can be arranged such that the storage surfaces of the individual storage elements are arranged parallel to each other.

Furthermore, the storage element can form the base of the storage furniture or be surrounded by the base. In this way, it is possible, for example, that objects located under or to the sides of the storage furniture can be illuminated by the radiation-emitting part.

Purely by way of example, the storage element can be a shelf, a cabinet or a drawer bottom, or a drawer bottom, a cabinet bottom or a storage rack that can be mounted on the wall. The associated storage furniture can be, for example, a bench, a cabinet, a chest of drawers, a drawer, a kitchen cabinet, in particular a wall-mountable kitchen wall cabinet, bathroom furniture or a bookshelf.

The invention is explained in more detail below with the aid of examples and figures.

1 shows a schematic cross-sectional view of an organic layer stack between a first and a second electrode according to one embodiment,

Figure 2A shows a schematic cross-sectional view of a light emitting device according to an embodiment,

Figure 2B shows a schematic perspective view of an electrode according to one embodiment,

Figure 2C shows a schematic cross-sectional view along the line A-A' of Figure 2B,

Figure 3 shows a schematic cross-sectional view of the thin film encapsulation part,

Fig. 4A shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Fig. 4B shows a schematic top view of the substrate of the light emitting device according to Fig. 4A,

Fig. 4C shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Figure 4D shows a schematic top view of the substrate of the light-emitting device according to Figure 4C,

Fig. 5A shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Figure 5B shows a schematic diagram of the construction of a light-transmitting light-emitting device,

Figure 6 shows a schematic perspective view of a door according to one embodiment,

Figure 7 shows a schematic perspective view of a display window according to an embodiment,

Figure 8 shows a schematic perspective front view of a vehicle according to one embodiment,

Figure 9 shows a schematic perspective view of a museum room according to one embodiment,

Fig. 10 shows a schematic cross-sectional view of a light emitting device according to an embodiment,

Figure 11 shows a schematic perspective view of a room with space dividers according to one embodiment,

Figure 12A shows a schematic cross-sectional view of a display with light emitting devices according to one embodiment,

Figure 12B shows a schematic top view of the TV set,

Figure 13A shows a schematic perspective view of a stand according to one embodiment,

Figure 13B shows an enlarged section of Figure 13A,

Figure 14 shows a schematic cross-sectional view of a reflective display according to one embodiment,

Fig. 15 shows a schematic cross-sectional view of a light emitting device according to an embodiment,

Fig. 16 shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Figure 17A shows a schematic cross-sectional view of a thin film encapsulation part according to one embodiment,

Fig. 17B shows a schematic cross-sectional view of a reflective package according to an embodiment,

Fig. 17C shows a schematic cross-sectional view of a thin film encapsulation part according to another embodiment,

Figure 18A shows a schematic perspective view of a vehicle mirror according to one embodiment,

Fig. 18B shows a schematic perspective view of the vehicle mirror according to Fig. 18A,

Figure 19 shows a schematic perspective view of a multi-part mirror according to one embodiment,

Figure 20 shows a schematic perspective view of a multi-part mirror according to another embodiment,

Figure 21 shows a schematic perspective view of an inspection mirror according to one embodiment,

Fig. 22 shows a schematic perspective view of a vanity mirror according to one embodiment,

Fig. 23 shows a schematic top view of a decorative part according to an embodiment,

Figure 24 shows a schematic perspective view of a mirror according to another embodiment,

Figure 25 shows a schematic cross-sectional view of a flexible light emitting device according to an embodiment,

Fig. 26 shows a schematic cross-sectional view of a flexible light-emitting device according to another embodiment,

Figure 27 shows a schematic cross-sectional view of a light emitting device according to an embodiment,

Figure 28A shows a schematic top view of a window with louvers according to one embodiment,

Figure 28B shows a schematic cross-sectional view of the blades of the shutter of Figure 28A,

Figure 29A shows a schematic view of a window covered by a curtain according to one embodiment,

Figure 29B shows a schematic cross-sectional view of the shade according to Figure 29A,

Figure 29C shows a schematic cross-sectional view of a shade according to another embodiment,

Figure 30 shows a schematic view of a window with a blind according to another embodiment,

Figure 31 shows a schematic cross-sectional view of a light emitting device according to one embodiment,

Figure 32 shows a schematic perspective view of a furniture element according to one embodiment,

Figure 33 shows a schematic perspective view of a flexible light emitting device in a rolled state according to one embodiment,

Figure 34A shows a schematic diagram of a lighting device according to one embodiment,

Fig. 34B shows a schematic cross-sectional view of the lighting device in Fig. 34A along the tangent line A-A',

Figure 35A shows a schematic top view of a light emitting device according to one embodiment,

Fig. 35B shows a schematic cross-sectional view of the light-emitting device according to Fig. 35A along the line A-A',

Figure 35C shows a schematic top view of a multicolor light emitting device according to one embodiment,

Fig. 36 shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Fig. 37 shows another schematic cross-sectional view of a multicolor light emitting device according to another embodiment,

Fig. 38 shows a schematic top view of first and second electrodes according to another embodiment of a multicolor light emitting device,

Fig. 39 shows a schematic top view of a multi-color light emitting device according to another embodiment,

Fig. 40A shows a schematic top view of a lighting device according to an embodiment,

Figure 40B shows a schematic partial enlarged view of Figure 40A,

Fig. 41 shows a schematic top view of a light emitting device according to another embodiment,

Figure 42 shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Fig. 43 shows a schematic cross-sectional view of another light emitting device according to another embodiment,

Figure 44 shows a schematic top view of another embodiment of a light emitting device,

Figure 45 shows a schematic cross-sectional view of a light emitting device according to another embodiment,

Fig. 46 shows a schematic perspective view of the light emitting device according to Fig. 45,

Figure 47 shows a schematic diagram of the CIE standard color table,

48A shows a schematic diagram of a mood indicator (Flirttindikator) with multi-color light emitting devices according to one embodiment,

Fig. 48B shows a schematic diagram of the light emitting device according to Fig. 48A together with the control device,

Figure 49 shows a schematic cross-sectional view of a light emitting device according to one embodiment,

Figure 50 schematically shows another possible application of a multicolor light emitting device,

Figure 51 shows a schematic perspective view of the application of a multicolor light emitting device,

Figure 52 shows a schematic perspective view of a light emitting device according to one embodiment,

Fig. 53 shows a schematic diagram of a connection site according to one embodiment, as the connection site can be used in the light emitting device of Fig. 52,

Fig. 54 shows another schematic perspective view of a connection point according to one embodiment, as can be used in Fig. 52,

Fig. 55 shows a schematic top view of a connection site, such as the connection site can be used in the light emitting device of the embodiment of Fig. 52,

Fig. 56 shows a schematic perspective view of a light emitting device according to another embodiment,

Fig. 57 shows a schematic perspective view of a light emitting device according to another embodiment,

Fig. 58 shows a schematic top view of a connection site according to one embodiment, such as the connection site can be used in the light emitting device of Fig. 57,

FIG. 59 shows another schematic top view of a connection site according to an embodiment, as the connection site can be used in the light emitting device of FIG. 57 ,

FIG. 60 shows a schematic plan view of another embodiment of a connection point, which can be used for the luminous means of FIG. 55,

Fig. 61 shows a schematic perspective view of a light emitting device according to another embodiment,

Figure 62A shows another schematic perspective view of a light emitting device according to one embodiment,

Figure 62B shows an enlarged partial schematic view of Figure 62A,

Figure 63A shows a schematic top view of a light emitting device according to another embodiment,

Fig. 63B shows an enlarged partial schematic view of the connection site of the light emitting device according to Fig. 63A,

Fig. 64 shows a schematic top view of a lighting device according to an embodiment,

65 and 66 show schematic perspective views of a lighting device according to another embodiment,

65 and 67 show schematic diagrams of another lighting device according to one embodiment,

Fig. 68 shows a schematic perspective view of a lighting device according to another embodiment,

Figure 69 shows a schematic diagram of a circuit sketch according to one embodiment,

Figure 70 shows another schematic circuit sketch according to another embodiment,

Fig. 71 shows a schematic diagram of a lighting device according to another embodiment,

Fig. 72 shows a schematic perspective view of a lighting device according to another embodiment,

Fig. 73 shows a schematic perspective view of a lighting device according to another embodiment,

Fig. 74 shows a schematic perspective view of a lighting device according to another embodiment,

Figure 75 shows a schematic perspective view of a display device according to an embodiment,

Figure 76 shows a schematic top view of a coarse-grained display according to one embodiment,

Figure 77 shows a schematic diagram of a bathroom according to one embodiment,

Fig. 78 shows a schematic perspective view of a lighting device with a light emitting device and a second light source according to an embodiment,

Fig. 79 shows a schematic perspective view of a lighting device with a light emitting device and a second light source according to another embodiment,

Fig. 80A shows a schematic perspective view of a lighting device according to another embodiment,

Fig. 80B shows a schematic cross-sectional view of the lighting device of Fig. 80A,

Fig. 81 shows a schematic top view of a lighting device according to another embodiment,

Fig. 82 shows a schematic perspective view of a lighting device with a light emitting device and a second light source according to another embodiment,

Fig. 83 shows a schematic perspective view of a lighting device with a light emitting device and a second light source according to one embodiment,

84A to 84C show schematic views of storage elements and storage furniture according to one embodiment,

Figure 85 shows a schematic view of a storage element according to another embodiment,

Figure 86 shows a schematic view of a storage element according to another embodiment,

Figure 87 shows a schematic view of a storage element according to another embodiment,

Figure 88 shows a schematic view of storage furniture according to another embodiment,

89A to 89E show schematic views of storage furniture according to other embodiments.

In the exemplary embodiments and figures, identical or identically acting components are each provided with the same reference symbols. The elements shown are not to be considered to scale, rather, elements may be shown exaggerated for better understanding.

FIG. 1 shows a schematic cross-sectional view of an organic layer stack 4 between a first electrode 2 and a second electrode 3 according to an exemplary embodiment. The first electrode is configured to be transmissive to visible light and has a TCO (Transparent Conductive Oxide), such as ITO (Indium Tin Oxide). In addition, the first electrode 2 functions as an anode. The second electrode 3 serves here as a cathode. It comprises, for example, aluminum or silver.

Applied to the first electrode 2 is an organic layer stack 4 with the following layers, wherein the sequence of the layers described below corresponds to their sequence within the organic layer stack starting from the cathode: 1-TNATA layer (1 -TNATA=4,4′,4″-tris(N(naphthalene-1-yl)-N-phenyl-amino)triphenylamine), sp-TAD layer with a thickness of about 20 nm (spTAD=2,2′,7 , 7′-diphenylamino-spiro-9,9′-bifluorene), a layer of SEB-010:SEB020 with a thickness of about 10 nm, a layer of TMM-004 with a thickness of about 10 nm: Ir(ppy)3 (15%) ( Irppy = fac-tris(2-phenyl-pyridyl)iridium complex) and a layer of TMM-04:TER012 with a thickness of about 30 nm. This organic layer stack is suitable for white light emission.

Fig. 2A shows a schematic cross-sectional view of a light emitting device according to an embodiment. The luminous means comprises a substrate 1 having a first main surface 101 on which a first electrode 2 is applied in an active region 5 of the substrate 1 . Arranged on the first electrode 2 is an organic layer stack 4 having at least one layer 401 suitable for generating light, onto which the second electrode 3 is applied. In this case, the first electrode 2 on the substrate 1 is the anode, and the second electrode 3 on the organic layer stack 4 is the cathode. On its cathode-facing outer side, the organic layer stack 4 has a doped layer 402 containing a dopant 410 which acts as an electron donor. This advantageously increases the injection of electrons from the cathode into the organic layer stack. For example, cesium fluoride, barium fluoride or lithium fluoride can be used as dopant 410 .

Furthermore, the light-emitting device according to FIG. 2A also includes a thin-film encapsulation 6 . The active region 5 with the organic layer stack 4 is arranged in the thin-film encapsulation 6 . The thin-film encapsulation 6 is applied directly to the second electrode 3 . A thin film encapsulation as can be used for the light emitting device of FIG. 2A is described for example in connection with FIG. 3 .

The luminous means according to FIG. 2A is designed to be transparent to visible light, in particular light generated by the organic layer stack 4 . For this purpose, the substrate 1 is configured to be transparent to visible light. The substrate can comprise or consist of glass or plastic, for example. For example, a thin glass sheet or a flexible plastic film which contains or consists of one of the plastic materials mentioned in the general description can be used as substrate.

The first electrode 2 on the substrate is also configured to be transparent to visible light. The first electrode 2 can consist of TCO or have it, for example. The organic material of the organic layer stack 4 is generally configured to be transparent to visible light. In particular, the doped layer is designed to be transparent to visible light. The organic layer stack 4 may comprise, for example, the layers of the organic layer stack of FIG. 1 . The second electrode 3 is likewise designed to be transparent to visible light, in particular light generated by the organic layer stack 4 . The second electrode 3 is designed here as a cathode. The electrodes can have, for example, a metal layer which contains aluminum or silver and which has a thickness of approximately 30 nm.

Furthermore, the electrodes 2 , 3 configured to be transparent to visible light may comprise or consist of electrically conductive organic materials. Here, for example, PEDOT:PSS is suitable as organic electrode material. PEDOT:PSS can be configured here, for example, as an anode. However, with suitable conductive doping, the cathode can also consist of PEDOT:PSS or contain this material.

If the conductivity of the electrode material, in particular the organic material, is not sufficient to inject sufficient charge carriers into the organic layer stack, a thin metal track can be arranged between the electrode and the organic layer stack.

2B shows a schematic perspective view of an electrode 2 with a layer comprising an organic conductive material and a thin metal track 201 arranged between an organic electrode layer 202 and an organic layer stack 4 according to an embodiment. FIG. 2C shows a schematic cross-sectional view along line AA' of FIG. 2B .

Metal rail 201 is configured in the form of a grid in the present exemplary embodiment. The thickness of the metal track is preferably several μm. The distance between immediately adjacent grid points is preferably between 1 mm and 100 mm, limit values included.

In addition, the conductive track 201 also has a multi-layer structure, for example, a multi-layer structure with three metal tracks, as shown in FIG. 2C . The two outer rails 2011, 2012 are protective layers for the middle layer 2013 against corrosion. They can, for example, contain chromium, molybdenum, copper or silver or consist of one of these materials. The intermediate layer 2013 of the multilayer structure can contain aluminum or consist of aluminum, for example.

The thickness of the multilayer structure is preferably at least 50 nm and at most 100 nm.

Furthermore, the thin-film encapsulation 6 of the luminous means according to FIG. 2A is designed to be transparent to visible light, in particular light generated by the organic layer stack 4 . FIG. 3 shows a schematic cross-section through a thin-film encapsulation 6 , which can be used, for example, according to FIG. 2A . In this case, the thin-film encapsulations 6 each comprise two first barrier layers 601 containing or consisting of silicon oxide and two second barrier layers 602 containing or consisting of silicon nitride. In this case, the first barrier layers 601 and the second barrier layers 602 of the thin-film encapsulation 6 are arranged alternately with regard to their material composition. The thickness of the thin-film encapsulation 6 is preferably between 0.5 μm and 5 μm, limit values included.

The barrier layer may for example be evaporated, sputtered or deposited on the second electrode by a plasma assisted process such as chemical vapor deposition (CVD). The thickness of the barrier layer is preferably at least 30 nm to at most 300 nm, respectively. It is particularly preferred that the individual barrier layers are about 100 nm thick. Preferably, the thin-film encapsulation comprises at least two and at most eight barrier layers. Thin film encapsulation typically contains three or four barrier layers.

The thin film encapsulation may also contain a polymer interlayer, as further described below with reference to FIG. 17 .

Furthermore, a protective lacquer layer 603 is applied to the barrier layer. The protective varnish layer 603 can be applied, for example, by spinning centrifuge (spin coating), spraying, doctor blade, screen printing or similar techniques. After application, the protective lacquer layer 603 hardens by delivering heat or ultraviolet radiation. Acrylate, polyacrylate, polyimide and the like are suitable as a material for the protective lacquer layer 603 . The thickness of the protective lacquer layer is, for example, between at least 30 μm and at most 40 μm.

The light-emitting device of FIG. 2A is suitable for simultaneously emitting light from the upper side and from the lower side opposite the upper side, since the light generated in the organic layer stack 4 only passes through the components that transmit visible light.

Fig. 4A shows a schematic cross-sectional view of a light emitting device according to another embodiment. The luminous component according to FIG. 4A has a substrate 1 with an active region 5 onto which a first electrode 2 is applied. Arranged on the first electrode 2 is an organic layer stack 4 having at least one layer 401 suitable for generating light. A further second electrode 3 is arranged on the organic layer stack 4 . The substrate, the first and the second electrode and the organic layer stack are designed to be transparent to visible light, in particular light generated by the organic layer stack 4 , as already described, for example, with reference to FIG. 2A .

An active region 5 of the substrate 1 is surrounded by a fastening region, wherein the organic layer stack 4 is arranged on this active region between the first electrode 2 and the second electrode 3 . In the fixation zone 8 , the substrate 1 comprises conductive leads 9 electrically conductively connected to the first electrode 2 and the second electrode 3 . The lead 9 to the first electrode 2 can be, for example, a structure of the first electrode 2 which runs straight into the fastening region 8 . In said case, the electrical lead 9 generally has the same material as the first electrode 2 . The lead 9 to the second electrode 3 is here electrically conductively connected to a further electrode structure 901 electrically insulated from the first electrode 2 in the active region 5 of the substrate 1 in that the lead 9 likewise extends via the further electrode structure 901 to It is formed in the fixed area 8. The second electrode 3 on the organic layer stack 4 is electrically conductively connected, for example via a via 900 , to a further electrode structure 901 .

In the fastening area 8 , an adhesive layer 610 is arranged above the electrical leads 9 , by means of which adhesive layer the cap serving as encapsulation 6 is fastened to the substrate. The cap has a cavity above the active region 5 in which the active layer stack 4 is arranged. The cap is not in direct contact with the second electrode 3 here. Furthermore, the cap, like the substrate 1 , the first electrode 2 and the second electrode 3 and the organic layer stack 4 , is designed to be transparent to visible light, in particular light generated by the organic layer stack 4 . The cap can consist, for example, of glass or of the light-transmitting plastics already mentioned in the general description relating to the substrate 1 .

A getter layer 611 is applied to the inner side of the cap facing the organic layer stack, which is designed to be permeable to visible light. For example, one of the materials already described above can be used as getter material. Particularly suitable for a transparent getter layer 611 are particles of a getter material, such as calcium oxide, embedded in a transparent matrix. For example, solvent-free, hardenable plastic materials are suitable for the matrix. The thickness of the getter layer 611 is preferably at most 300 μm, particularly preferably between at least 50 μm and at most 100 μm.

The electrical leads 9 on the substrate 1 are electrically conductively connected here to the control device 11 .

FIG. 4B shows a schematic plan view of the substrate 1 according to FIG. 4A . The first electrode 2 and the further electrode structure 901 are arranged in the active region 5 . On the sides of the active regions 5 , in the fastening regions 8 there are in each case electrical leads 9 , which are here configured in a grid-like manner. The electrical lead on one side of the substrate 1 is a continuation of the further electrode structure 901 , while the electrical lead 9 on the other side of the substrate is a continuation of the first electrode 2 . The electrical lead here contains TCO, for example ITO.

Furthermore, it is possible for the electrical lead 9 to contain metal or to consist of it. For example, the lead 9 contains or consists of at least one or a combination of the following materials: Cr/Al/Cr, Cu/Cr, Mo/Al/Mo; Cr, Cu, Al, Ag, Au, Pt.

If the electrical leads 9 contain metal, the degree of filling of the grid is usually chosen so small that the electrical leads are not perceptible to a viewer. In this way, the electrical lead 9 can advantageously be made permeable to visible light. The degree of filling of the grid is preferably less than 10%, particularly preferably less than 2%.

The electrical leads 9 are electrically conductively connected to electrical connection points 70 (here pins 75 ) arranged on the side of the substrate 1 . The light-emitting device can be in electrical contact with the socket through the pin 75, or connected with the control device 11 as shown in FIG. 4A.

FIG. 4C shows a schematic cross-sectional view of a light emitting device 100 according to another embodiment. FIG. 4D shows a schematic top view of the substrate of the light emitting device according to FIG. 4C . The light emitting device 100 corresponds to the light emitting device of FIGS. 4A and 4B except for the differences described below.

In contrast to the light-emitting component of FIGS. 4A and 4B , the organic layer stack 4 has no vias. Furthermore, the substrate also does not contain further electrode structures.

Alternatively, first electrode 2 is formed in active region 5 on substrate 1 so as to lie below organic layer stack 4 over its entire area. On the side of the active region 5 in the fixed region, an electrical lead 9 is arranged, which is electrically conductively connected to the first electrode 2 . The electrical lead 9 can, for example, be a continuation of the first electrode 2 . On the other side, electrical leads 9 are mounted on the substrate 1 , which are not electrically conductively connected to the first electrode 2 . Furthermore, the electrical lead comprises a bond pad (Bond pad) 903 on the side provided with a bond pad 902 electrically conductively connected to the second electrode 3 .

FIG. 5A shows a schematic cross-sectional view through a light emitting device 100 according to another embodiment. The luminous means 100 includes a glazing as substrate 1 . Applied on the substrate is a first electrode 2 , to which is additionally applied an organic layer stack 4 having at least one layer 401 suitable for generating light. The organic layer stack 4 can be, for example, a layer stack 4 as already described with reference to FIG. 1 . A second electrode 3 is applied on the organic layer stack 4 . The light emitting device according to FIG. 5A comprises a second glazing as encapsulation 6 , which is bonded to the second electrode 3 with an adhesive layer 610 . For example, transparent adhesives are suitable as adhesives. Preferably, the adhesive is likewise configured to be transparent to visible light. For example Nagase or Three-Bond are suitable as adhesives.

The substrate 1 , the electrodes 2 , 3 , the encapsulation 6 , the organic layer stack 4 and the adhesive layer 610 are configured to be transparent to visible light. Thus, the light emitting device 100 is adapted to emit light from its upper side 100a and its lower side 100b. Furthermore, a viewer can look through the light emitting device 100 when not in use. The luminous means are therefore suitable as glazing, for example in doors, windows, room dividers, furniture, etc., wherein the glazing can be used as a source of illumination.

FIG. 5B shows a schematic illustration of the construction of a luminous means 100 which is substantially transparent to visible light and which is integrated into a glazing. Here, a glass plate is used as substrate 1 with an active region 5 onto which a first electrode 2 is applied. Here, the electrodes are likewise designed to be transparent to visible light and contain TCO, for example ITO. In order to represent a certain shape, for example a character string or a logo, the first electrode 2 is structured according to the desired shape, here the character string "Info 1".

In the active region, an organic layer stack 4 is applied to the first electrode, for example as already described in FIG. 1 . A second electrode 3 is applied to the organic layer stack, which second electrode is likewise transparent to visible light and serves here as a cathode. The second electrode 3 is applied over the entire surface of the organic layer stack 4 . However, it is also possible to apply the first electrode 2 over the entire area to the substrate and the second electrode 3 in the form of the luminous area to be formed as a luminous means to the organic layer stack 4 . A second glass pane is applied as encapsulation 6 to second electrode 3 . Preferably, the dimensions of the encapsulation 6 are selected here to be the same as the dimensions of the substrate 1 . In this way, a glazing with luminous means 100 is produced, the luminous surface of which is configured in a desired manner, for example in the form of a character string or a logo.

A second glass pane serving as encapsulation 6 can be fixed to the substrate, for example, by means of a visible light-transmissive adhesive layer 610 . The adhesive layer 610 can here be applied over the entire surface of the substrate and the second glass pane, or only in the fastening region 8 outside the active region 5 .

Active region 5 can be contacted, for example, via conductive leads 9 , as described with reference to FIGS. 4A to 4D .

FIG. 6 shows a schematic perspective view of a door 300 according to one embodiment. The door 300 has two door panels 301 configured to be transparent to visible light. The door panel has glass or is formed from glass, for example. A light emitting device 100 configured to transmit visible light is integrated into each door panel 301 . By means of the luminous means 100 , the luminous surfaces of which in this case form indicia in each case, it is possible to integrate a luminous sign on the door 300 . Such a door 300 with an illuminated sign can be used, for example, in museums, conference centers, hotels and the like. The luminous means can here either be integrated into the door 300, as already described with reference to FIGS. The agent layer is installed on the door. A flexible light emitting device suitable for bonding is described, for example, in connection with FIG. FM9 .

If the luminous means 100 are integrated on the door 300 , the electrical leads 9 can be applied to the substrate 1 on which the first electrode 2 is applied, ie to the glazing, as already described for example in connection with FIGS. 4A to 4D . The electrical lead 9 can, for example, be electrically conductively connected to a connection point 70 formed as part of the door hinge, wherein the electrically conductive part extends within the door hinge. The door hinge itself may be connected to a cable running inside the door frame.

Also shown in FIG. 6 is an emergency lighting 395 which includes the luminous means 100 described here or the lighting device 1000 described here. The emergency lighting 395 is activated, for example, in the event of a power outage, and includes an independent power supply or is supplied with the required operating current by a backup power supply. The luminous means 100 and the lighting device 1000 described here are particularly well suited for use as emergency lighting, since they generate light of sufficient brightness with relatively low power consumption.

FIG. 7 shows a schematic perspective view of a showcase with four luminous means 100 configured to transmit visible light according to one exemplary embodiment. The trade names "Trademark 1" and "Trademark 2" as well as the logos "Logo 1" and "Logo 2" can be displayed with the light emitting device. As already described in connection with FIGS. 5A and 5B , the light emitting device 100 may be a light emitting device integrated into the glazing of a showcase or a flexible light emitting device bonded to the glazing with an adhesive layer. on the inner side.

FIG. 8 shows a schematic front view of a vehicle 310 according to one embodiment. Integrated into a window 20 , for example a windshield, are two luminous means 100 , which are designed to transmit visible light and are suitable for displaying the information “Information 1 ” and “Information 2 ” to the driver. Alternatively, as is also possible (as already described in connection with FIGS. 7 and 6 ), the two illuminants 100 can also be of flexible design and glued to the windshield from the inside.

FIG. 8 further illustrates vehicle interior lighting 396 . The vehicle interior lighting is formed, for example, by the luminous means 100 described here or the lighting device 1000 described here.

FIG. 9 shows a schematic perspective view of a museum room, the ceiling element 320 of which comprises glazing. The glazing of the ceiling element has a visible light-transmissive luminous means 100 or lighting device 1000 partially or completely over its entire area. The glazing can be, for example, a glazing with integrated luminous means 100 , as already described with reference to FIGS. 5A and 5B . Alternatively, the luminous means can also be applied to the inner side of the glazing, for example by gluing.

Thus, the glazing of the ceiling element of the museum room according to FIG. 9 is adapted to be able to daylight the room during the day. In poor lighting conditions, for example at night, the glass-mounted lighting device 100 can be used as an additional light source for the room.

Furthermore, the glazing of the ceiling elements of the museum room of FIG. 9 can also be designed in milky white. For this purpose, either the glazing used as the substrate, or the glazing used as the encapsulation, or both are designed in milky white.

FIG. 10 shows a schematic cross-sectional view of a light emitting device 100 according to an embodiment. In the luminous means 100 according to FIG. 10 , the encapsulation 6 and the substrate 1 are configured as glazing, as is the case with the luminous means according to FIGS. 5A and 5B . Such a glazing can be used, for example, as a pane for a window 20 , but also as a door 300 or a furniture component. During the day, this glazing can be used as a window 20, ie visible light can enter the room from the outside unhindered. At night, the light emitting device 100 is activated so that the glazing serves as a source of room lighting. In addition, reflective shutters (Spiegeljalousie) 22 are provided on the outside of the glazing for privacy protection, which prevent unwanted sightlines from entering from the outside. Furthermore, the reflective louver 22 is also adapted to reflect the light emitted by the luminous means 100 . Since the reflective louvers 22 reflect back, the utilization efficiency of the light emitted by the light emitting device 100 is advantageously improved. Furthermore, it is possible that the shutter 22 is a typical shutter or a PDLC shutter. In addition to PDLC blinds, other glass types that can be darkened by applying an electrical voltage are also suitable.

Fig. 11 shows a schematic perspective view of a room with space dividers according to one embodiment. The space divider 330 has two space divider elements 331 with a glazing in the frame, wherein the glazing includes the luminous means 100 configured to be transparent to visible light. The luminous means 100 are integrated into the glazing, as described for example in connection with FIGS. 5A and 5B , or are glued onto the glazing. The space divider element 331 can advantageously be used for illuminating the space regions separated by the space divider due to its lighting function.

In this case, room divider 330 is constructed modularly. The room divider comprises two room divider elements 331 which can be connected to one another by a plug connection. For this purpose, the frame of the room divider element has a sheath 332 on one of its sides, which is embodied, for example, in the shape of a cylinder. The side of the frame opposite the side with the sheath 332 is provided with a latch 333 which is embodied such that it can be inserted into the sheath 332 . Each two space divider elements 331 can be connected to each other by inserting the pins of one space divider element into the sheath of the other space divider element. In this case, in particular, the room divider element 331 can also be electrically connected via the sheath 332 and the pin 333 . The space divider 330 forms a large area lighting device.

Fig. 12 shows a schematic cross-sectional view of a display according to one embodiment. The display 335 can be, for example, a display of a television, an LCD screen, an OLED screen or a plasma screen. The front glass pane of the display serves as the substrate 1 of the luminous means, which is designed to be transparent to visible light. A first electrode 2 is applied to the front glass pane, which first electrode contains TCO and is therefore configured to be transparent to visible light. An organic layer stack 4 is applied to the first electrode 2 as described with reference to FIG. 1 . A second electrode 3 which likewise contains TCO is applied to this organic layer stack.

For example one of the following TCO materials is particularly suitable as TCO for the cathode: ITO, ATO, zinc oxide.

A further glass pane is applied as encapsulation 6 to second electrode 3 . For example, another glass plate may be bonded to the second electrode 3 with an adhesive layer 610 . The organic layers are designed in such a way that the ejection from the organic layer stack takes place mainly through the encapsulating glass pane. In this case, the luminous means 100 integrated into the front panel of the display 335 can be used as a source of illumination in the off state of the display. For this purpose, the luminous means are preferably embodied in a dimmable manner. In the off state of the light emitting device, the content of the display 335 can be perceived by the viewer because the light emitting device is configured to transmit visible light.

FIG. 12B shows a schematic top view of a television 336 with a display 335 , as described in conjunction with FIG. 12A .

FIG. 13A shows a schematic perspective view of a stand 340 according to one embodiment. Fig. 13B shows a part of Fig. 13A. The stand 340 comprises two side parts with rods 83 which are hollow on the inside and contain cables. The side sections with the rods 83 form a rod system, as also described with reference to FIG. 68 . These rods 83 are designed to support the platform plate 341 . For this purpose, the platform plates 341 each comprise correspondingly shaped holders 342 on the sides. These holding devices are here configured corresponding to the rods of the side parts of the stand in the form of a cut-away cylinder. However, it is also possible for the rod 83 and the holding device 342 to be of an angular configuration. The platform plate 341 here comprises a frame 343 into which the glazing with the visible light-transmissive luminous means 100 is inserted. For electrical contact, the holding device 342 of the platform plate here contains a pin 71 which is inserted into a conductive recess 73 in the rod 83, as shown in FIG. 13B . The rods 83 of the side parts are preferably hollow. In this way, the cables for contacting the plug are guided into the rod. Shelf panels, like the shelf 340 shown in FIG. 13B , can also be used, for example, in display cabinets or other furniture components and storage furniture.

FIG. 14 shows a schematic cross-sectional view of a reflective display 335 . The reflective display 335 comprises on its backside a reflective element 337 on which pixels 338 are arranged. The reflective display 335 does not require a backlight, but instead reflects ambient light due to the reflective element 337 so that the display can be shown. Thus, reflective display 335 is dependent on ambient light. Can no longer be seen in the dark. A light-emitting device transparent to visible light is applied to the radiation-emitting front side 335a of the reflective display 335, for example as described with reference to FIG. 5A. The luminous means is designed in such a way that most of the light is emitted in the direction of the reflective element. For better color rendering, the light emitting device 100 can be slightly colored, for example, light magenta. For this purpose, for example, the encapsulation 6 or the substrate 1 or both are colored in a desired color. The light emitting devices are preferably mounted on the reflective display front 335a with an index matching material to avoid reflections. Time-sequential operation in RGB is also possible if the luminous means can change color, for example so that the color space (Farbraum) RGB is covered, and the reflective display 335 can also be switched on sufficiently quickly. In the case of time-sequential operation, the display is preferably operated at a frequency of at least 70 Hz, particularly preferably at least 100 Hz.

FIG. 15 shows a schematic cross-sectional view of a light emitting device 100 according to an embodiment. The electrodes 2 , 3 , the substrate 1 , the encapsulation 6 and the organic layer stack 4 are designed to be transparent to visible light, in particular to the light generated by the organic layer stack 4 . On the outer side of the substrate 1 , which may be formed, for example, from a glass plate, is a reflective element 337 , which here is a reflective layer sequence. The reflective layer sequence comprises a copper layer 337b, a silver layer 337a and a protective lacquer layer 337c, wherein the silver layer 337a is applied to the substrate 1, the copper layer 337b is applied to the side of the silver layer 337a facing away from the substrate, and the protective lacquer layer is applied to the copper layer 337b. Since the reflective layer sequence is formed along the lower side 100 b of the luminous means 100 , the luminous means 100 can no longer emit light from this lower side, but only from its upper side 100 a. The reflective element also reflects light so that the light exits through the first electrode 2 and the substrate 1 in the direction of the upper side 100 a of the luminous means 100 .

As an alternative to the layer sequence described above with a silver layer, a copper layer and a protective varnish layer, it is also possible, for example, to use as reflective element 337 a dielectric mirror which, like the layer sequence above, is also applied to the on the outside of the substrate.

A reflective element 337 , such as a reflective layer sequence or a dielectric mirror, for example, can also be applied on the outside of the encapsulation 6 or mounted between the substrate 1 and the first electrode 2 and between the encapsulation 6 and the second electrode 3 . If the reflective element is arranged on the outside of the encapsulation 6 or between the encapsulation 6 and the second electrode 3, the light emitting device 100 emits light from its underside 100b.

The light emitting device 100 as shown in FIG. 15 in particular allows it to be used as a reflector when the light emitting device is deactivated and is used as an illumination source when the light emitting device 100 is in operation. In the case of such a luminous means 100 , the entire luminous front side 100 a can be used as a lighting device or as a reflector. It is also possible to use the entire illuminated front side 100 a as a lighting device and as a reflector. In addition, it is also possible to divide the light-emitting front face 100a into regions such that a part of the light-emitting front face 100a serves as a reflector and another part serves as an illumination source.

However, for example, the luminous means can also be designed in such a way that it emits light both from its front side 100 a and from its rear side 100 b. For example, when using the so-called cavity effect, it is possible to emit light with different optical properties from different sides of the luminous means. Such a luminous means is described, for example, in German patent application 102006046196.7, the disclosure content of which is hereby expressly incorporated by reference.

FIG. 16 shows a schematic cross-sectional view of a light emitting device 100 according to another embodiment. The following elements of the luminous means 100 are configured to be transparent to visible light: the encapsulation 6 , the substrate 1 , the first electrode 2 and the organic layer stack 4 . For example, a glass plate or a plastic film can be used as substrate 1 , which is designed to be transparent to visible light.

The first electrode 2 can be formed, for example, from TCO.

The organic layer stack 4 can be, for example, the layer stack already described with reference to FIG. 1 .

The encapsulation 6 can be, for example, a glass cap, a glass plate, a plastic cap or a plastic plate.

Furthermore, a getter material which is likewise designed to be permeable to visible light can be applied to the inner side of the cap or plate facing the organic layer stack 4 . Furthermore, the encapsulation 6 can be a thin-film encapsulation with at least one barrier layer. The barrier layer can be formed of, for example, SiO _x or SiN _x or contain these materials. Furthermore, the thin-film encapsulation 6 can also have first and second barrier layers 601 , 602 which alternate with respect to their material composition. For example, polymer intermediate layers can be arranged between alternating barrier layers, see also FIG. 3 for this, for example.

17A shows a schematic cross-sectional view of a thin-film encapsulation 6 with alternating barrier layers 601 , 602 , in which case a polymer intermediate layer 604 is arranged between two adjacent barrier layers of different material composition. The barrier interlayer can be, for example, two barrier layers 601 containing SiO _x and two barrier layers 602 containing SiN _x , as already described in connection with FIG. 3 . As in the exemplary embodiment according to FIG. 3 , the barrier layers 601 , 602 are alternately arranged in terms of material composition, that is to say first barrier layers 601 alternate with second barrier layers 602 in the thin-film encapsulation 6 , wherein the first and the second The two barrier layers 601, 602 have different material compositions. However, unlike the thin-film encapsulation 6 according to FIG. 3 , the barrier layers 601 , 602 are separated from one another by a polymer intermediate layer 604 .

As an alternative to a separate reflective element 337 , such as the aforementioned reflective layer sequence or a dielectric mirror, the second electrode 3 of the luminous means according to FIG. 16 is designed to reflect visible light. For this purpose, the second electrode 3 contains, for example, aluminum or silver or is formed from one of these materials. Such a luminous means is also suitable as a reflector and/or illumination source, like the luminous means according to FIG. 15 .

In order to obtain a light-emitting device that can be used as a reflector and/or as an illumination source without additional reflective elements, it is also possible to construct a second electrode 3 that is transparent to visible light, for example by using TCO as electrode material, and instead reflective The encapsulation 6 , the substrate 1 or the first electrode 2 are structured accordingly.

The reflective encapsulation 6 can be, for example, a polished metal cap.

FIG. 17B shows a schematic cross-section through a reflective encapsulation 6 according to one exemplary embodiment. This is a cap that is already reflective, for example by a cap formed of polished metal, or a cap that is non-reflective. A reflective element 337 , for example a reflective layer, is applied to the inner side of the cap facing the organic layer stack 4 . The reflective layer on the inner side of the cap can be, for example, a metallic layer containing or consisting of silver, for example. Furthermore, the reflective layer can also contain several layers. In addition, a getter layer 611 of a getter material, which is designed to be permeable to visible light, is applied on the reflective layer.

FIG. 17C shows a schematic cross-section through a thin-film encapsulation 6 according to another exemplary embodiment. The thin-film encapsulation 6 , like the thin-film encapsulation 6 according to FIG. 17A , has alternating barrier layers 601 , 602 which are separated from one another by a polymer intermediate layer 604 . In contrast to the thin-film encapsulation 6 according to FIG. 17A , the thin-film encapsulation 6 according to FIG. 17C has a reflective element 337 , for example a reflective layer sequence, as already described with reference to FIG. 15 . The reflective layer sequence includes a silver layer 337 a applied to the outermost barrier layer 602 . A copper layer 337b is applied to the silver layer 337a, on which in turn a protective lacquer layer 337c is arranged. Due to the reflective layer sequence, the thin-film encapsulation is embodied reflective and can be used as a reflective encapsulation.

A further possibility of constructing a luminous means 100 that can be switched back and forth between a reflector function and an illumination function consists in that the substrate 1 is embodied reflective, while the light-emitting means, such that the light generated in the organic layer stack 4 has to be The other elements traversing the path towards the light-emitting front side 100 a , in particular the second electrode 3 , the organic layer stack 4 and the encapsulation 6 are designed to be transparent to visible light. The reflective substrate 1 can, for example, contain metal or be formed of metal. For example, a metal film such as a stainless steel film can be used as the reflective substrate 1 . In particular mirrors can be used as substrates. In addition, laminates made of plastic films laminated to metal films, for example of aluminum, are suitable as reflective substrates. Alternatively, the substrate may be a reflectively coated glass substrate.

Alternatively or in addition to the reflective substrate 1 , the first electrode 2 can also be embodied reflective. The first electrode can, for example, contain or be formed from one of the following materials: aluminum, silver.

It is also possible for the thin-film encapsulation 6 itself to form a dielectric or Bragg mirror. The materials of the first and second barrier layers 601, 602 and the thicknesses of these layers are then selected accordingly.

FIG. 18A shows a schematic perspective view of a vehicle mirror 315 with luminous means 100 , in which it is possible to switch between a lighting function and a reflector function, as described for example in connection with FIGS. 15 to 17C . The luminous means here have a luminous surface which is designed according to the character string "Information 1". For this purpose, the electrodes 2 , 3 can be structured as described with reference to FIG. 5B . In contrast to FIG. 5B , however, the luminous component 100 according to FIG. 18A has a reflective element 337 , for example an additional reflective layer sequence. Furthermore, one of the elements of the luminous means 100 , for example one of the electrodes 2 , 3 , the substrate 1 or the encapsulation 6 , can also be embodied reflectively, as described above. In this way, logos, symbols or other information can optionally be displayed illuminated against a mirror background. In vehicle mirror 315 , for example, a warning can be inserted by means of luminous means 100 , for example a distance indicator when parking.

FIG. 18B shows a schematic perspective view of vehicle mirror 315 according to FIG. 18A . In the case of a vehicle mirror, a mirror is used as the substrate 1 . The substrate 1 is connected to the holder. In the active region 5 a first electrode 2 is applied on the substrate. The first electrode 2 is configured to be transparent to visible light, for example in that it is formed from TCO. Furthermore, the first electrode 2 is structured according to the character string "Information 1". A visible light-transmissive organic layer stack 4 is applied to the structured first electrode 2 . Furthermore, a second electrode 3 , which is likewise configured to be transparent to visible light, is applied to the organic layer stack 4 . A glass plate placed on the second electrode was used as the package 6 . The organic layer stack 4 and the second electrode 3 are applied over the entire area in the active region 5 . The first electrode 2 is sufficiently structured so that the luminous means 100 has a luminous area structured according to a string. The use of the mirror substrate 1 enables a simple integration of the luminous means onto the vehicle mirror 315 .

FIG. 19 shows a schematic perspective view of a multi-part mirror 345 according to one exemplary embodiment. Such a mirror can be used, for example, as a bath or dressing mirror. The reflector 345 comprises a central part 345a and two rotatable side wings 345b (indicated by arrows in the figure) arranged on the sides of the central part. The flanks 345b each contain a luminous means 100 , which can be switched between a reflective function and an illuminating function, and whose luminous surface almost completely fills the surface of the flank. Under good lighting conditions, the side wings 345b can be used as normal reflectors. In case of poor lighting conditions, such as in the dark or at dusk, one or both wings 345b of the mirror are switched on as an illumination source to illuminate the viewer. Additionally, the illuminated wings 345b may also serve as decorative lighting elements.

FIG. 19 and FIG. 20 show schematic perspective views of a multi-part mirror 345 according to another embodiment. The reflector is likewise a three-part reflector with a central part 345 a and two flanks 345 b arranged laterally on the central part, into which the luminous means 100 are introduced, in which case the reflector can be Switching back and forth between functions and lighting functions. Such a mirror can also be used, for example, as a bath or dressing mirror.

FIG. 21 shows a schematic perspective view of an inspection mirror 350 according to one embodiment. The inspection mirror 350 comprises a mirror element 351 and a holding element 352 which fixes the mirror element thereon. The holding element 352 is designed in an angled manner, so that hard-to-reach places can be seen through the mirror element 351 . Such an inspection mirror can be, for example, a dental mirror.

The inspection mirror 350 includes on its mirror element 351 a luminous means 100 in which switching between a reflective function and an illuminating function can be switched back and forth. The light emitting device may contain a part of the mirror or almost the entire mirror. Thus, it offers the possibility of simultaneously illuminating and seeing hard-to-reach places. Such mirrors can also be used around the home, for example to search for lost objects behind/under difficult-to-move furniture.

Fig. 22 shows a schematic perspective view of a vanity mirror according to one embodiment. Here, the vanity mirror is integrated into a cosmetic set, such as a compact. The vanity mirror also contains light means, in which case it is possible to switch back and forth between the mirror function and the lighting function. In case of poor viewing conditions, the light emitting device can be activated. Thus, in low light conditions, vanity mirror 355 can be used both as a vanity mirror and as a face light. The light emitting device 100 may include a part of the mirror or almost the entire mirror.

FIG. 23 shows a schematic top view of a decorative element 360 according to one embodiment. Decorative element 360 is designed here as a twinkling Christmas star. The base area of the star is reflective, with the luminous means being introduced into subregions of the star, in which stars it is possible to switch back and forth between the reflective function and the illuminating function. The luminous means can also be embodied in color, for example. In this case, in particular also multicolored luminous means 100 are possible, as will be described further below.

FIG. 24 shows a schematic perspective view of a mirror 365 according to another embodiment. Mirror 365 is used here for wet areas of the home. In this case, the mirror has an outer region provided with luminous means 100 , in which case it is possible to switch back and forth between the lighting function and the mirror function.

FIG. 25 shows a schematic cross-sectional view of a luminous means 100 of an embodiment of the luminous means described here.

The light emitting device 100 shown in FIG. 25 is a flexible light emitting device. The flexible luminous means 100 are characterized in particular in that they can be bent to a certain extent without being damaged by the bending. Preferably, the flexible luminous means can be bent multiple times without being damaged. The luminous device is then also suitable to withstand a large number of bending cycles without damage.

The light emitting device 100 of FIG. 25 includes a substrate 1 . The substrate 1 is a flexible metal substrate 1 . The metal substrate 1 contains or is formed by one of the following metals: aluminum, stainless steel, gold, silver. Preferably, the substrate 1 is designed here as a metal film with a thickness of at most 1 mm, particularly preferably at most 0.5 mm. Furthermore, it is also possible to design the flexible metal substrate 1 as a thin plate with a thickness of at least 3 mm and at most 4.75 mm, or as a thin plate with a thickness of at most 3 mm.

The first electrode 2 is applied directly to the first main surface 101 of the substrate 1 . The first electrode 2 is, for example, the cathode of the light emitting device 100 .

The cathode is suitable for injecting electrons into the organic layer stack following the cathode. To this end, the cathode has a material that exhibits a low work function for electrons. The cathode here preferably contains or is formed from an alkali metal or alkaline earth metal. In addition, the cathode may also comprise one or more layers formed from silver, aluminum and/or platinum or containing at least one of these metals.

Preferably, the organic layer stack 4 is applied directly to the cathode. The organic layer stack 4 comprises at least one layer 401 which is suitable for generating light when the light emitting device 100 is in operation.

The organic layer stack 4 may comprise further organic layers, for example a hole-conducting layer 409 or an electron-conducting layer 408 . The electron conducting layer is preferably immediately adjacent to the cathode. The hole-conducting layer is arranged on that side of the light-generating layer 401 of the layer stack 4 facing away from the cathode and preferably adjacent to the anode of the light-emitting component 100 .

Preferably, the second electrode 3 is arranged directly on the organic layer stack 4 . The second electrode 3 is, for example, the anode of the light emitting device 100 .

The anode is arranged to inject holes into the organic layer stack. The anode contains a material with a high work function for electrons. For example, indium tin oxide (ITO-Indium Tin Oxide) is a material suitable for forming the anode.

Preferably, the planarization layer 7 is applied directly on the second electrode 3 . The planarization layer 7 is formed of or contains an organic material.

According to the embodiment described in connection with FIG. 25 , additional scattering centers 701 are introduced into the planarization layer. The scattering centers 701 can be, for example, particles of at least one of the following materials: luminescence conversion materials, color filter materials, and diffusion materials. For example, the materials already mentioned in the general description can be used as luminescence conversion materials.

For example, color pigments dispersed in a matrix material are suitable as color filter materials. The matrix material is, for example, a transparent plastic such as acrylate, polyacrylate or polyimide. Color filters only transmit light of a certain color, such as green, red or blue.

Diffusing materials are, for example, light-scattering particles, such as titanium oxide, silicon oxide or particles of the aforementioned luminescence conversion materials, which can be embedded in the matrix.

Preferably, the encapsulation 6 is applied directly onto the planarization layer 7 . The encapsulation 6 is formed by a plurality of barrier layers, preferably containing inorganic materials. The barrier layer forms a flexible encapsulation of the light emitting device as part of the thin film encapsulation. For example, first and second barrier layers 601 , 602 are applied alternately to planarization layer 7 . In this case, the first barrier layer 601 is formed from silicon oxide and the second barrier layer 602 is formed from silicon nitride, see also FIG. 3 , in which this thin-film encapsulation is explained in detail.

In summary, a flexible luminous means 100 with a metal substrate 1 is described in conjunction with FIG. 25 .

The luminous means according to FIG. 25 is designed such that light is emitted from its upper side 100a. To this end, the light generated in the organic layer stack has to pass through components on its way towards the upper side 100a, in particular the organic layer stack 4 itself, the second electrode 3 and the encapsulation 6 are configured to be transparent to visible light . Furthermore, the planarization layer 7 is likewise designed to be transparent to visible light.

By polishing the main surface 101 , the first main surface 101 of the substrate 1 of the luminous means 100 can be configured to reflect light generated in the organic layer stack 4 . The light emitting device described in connection with Figure 25 is a flexible reflective light emitting device.

Figure 26 shows a schematic cross-sectional view of one embodiment of a light emitting device described herein.

The luminous means 100 described in conjunction with FIG. 26 is a flexible luminous means. Preferably, the flexible luminous means 100 is designed so flexibly that (without damage) it is wound onto a roll and can be unwound from the roll.

The light emitting device 100 includes a substrate 1 . The substrate 1 is designed as a plastic film. This means that the substrate 1 has a thickness of at most 1 mm, preferably at most 0.5 mm, particularly preferably between at least 50 μm and at most 500 μm, for example 250 μm, and contains or is formed of plastic. In particular, plastics such as PE and polyimide are suitable as plastics.

Preferably, the first electrode 2 , which is preferably transparent to visible light, is applied directly to the first main surface 101 of the substrate 1 . That is to say, the first electrode 2 is configured, as detailed above, to be at least partially permeable to the light generated by the luminous means during operation. For this purpose, the first electrode 2 can be formed from a light-transmitting material and/or be configured in the form of a grid.

Preferably, the organic layer stack 4 is applied directly onto the first electrode 2 . The organic layer stack 4 comprises at least one light-generating organic layer 401 . The organic layer stack 4 also includes an outermost organic layer 402 , which is for example directly adjacent to the second electrode 3 . The outermost organic layer is doped with a dopant 410 . Preferably, the dopant 410 of the doped layer (as described in detail above) is an atom or molecule as large as possible, which is suitable for releasing electrons (n-dopants) or holes (p-dopants ). Furthermore, the dopant has a low diffusion constant within the organic layer stack 4 . For this purpose, dopants are formed from atoms or molecules that are as large as possible. For example, cesium has proven to be a suitable dopant here.

Preferably, the second electrode 3 is applied directly onto the organic layer stack 4 . The second electrode 3 (as detailed above) is designed to be light-transmissive. That is to say, the second electrode 3 is formed of a light-transmitting material and/or configured in a grid shape.

Preferably, the light-transmissive encapsulation 6 is applied directly to the second electrode 3 . The packaging part 6 is preferably formed of a light-transmitting plastic film. In this case, the light-transmissive encapsulation 6 can be formed from the same material as the substrate 1 . However, it is also possible that the encapsulation is formed by one or more barrier layers, for example as described in connection with FIG. 3 . The encapsulation 6 is in this case designed as a flexible thin-film encapsulation.

In summary, a light-transmissive, flexible lighting device 100 is described in conjunction with FIG. 26 . In particular due to the in particular flexible substrate 1 configured as a plastic film and the in particular flexible encapsulation 6 configured as a plastic film or thin-film encapsulation, the light emitting device 100 is flexible so that Wraps onto the roll without causing damage and unwinds from the roll.

FIG. 27 shows a schematic cross-sectional view of an exemplary embodiment of a light emitting device 100 described herein.

The luminous means 100 explained with reference to FIG. 27 is a flexible luminous means. The flexible light emitting device 100 of FIG. 27 is particularly characterized in that it can be bent to a certain extent without being damaged by bending. Preferably, the flexible luminous means can be bent several times without being damaged as a result. The light emitting device is then suitable to withstand a large number of bending cycles without damage. In this case, the luminous means 100 can be designed to be flexible, so that it can be wound onto a roll and unrolled from the roll without this having negative effects.

The light emitting device 100 includes a substrate 1 . Substrate 1 is a flexible laminate substrate. That is to say, the substrate 1 of the light emitting device 100 is designed as a laminate.

The laminate includes a first layer 104 formed of plastic. The laminate also includes a second layer 103 formed of glass. The laminate also includes a third layer 104, again formed of plastic. For example, the layers of the laminate are bonded to each other. However, the second layer 103 of glass of the laminate can also be coated with plastic. The substrate 1 of the luminous means 100 described in conjunction with FIG. 27 is designed to be flexible and can also be light-transmissive. Compared to simple plastic films, for example, laminates are particularly well suited for keeping moisture away from electrodes and organic layer stack 4 .

Preferably, the first electrode 2 is applied directly to the first main surface 101 of the substrate 1 . The first electrode 2 is followed by an organic layer stack 4 comprising at least one light-generating organic layer 4 .

The second electrode 3 is applied directly onto the organic layer stack.

The second electrode 3 is followed by the encapsulation 6 of the light emitting device 100 . The encapsulation may be a thin film encapsulation which (as detailed above) contains one or more barrier layers. The encapsulation may also be a film, for example a plastic film or a metal film. The encapsulation can also be designed as a laminate, like the substrate 1 of the luminous means 100 .

FIG. 28A shows a schematic top view of a window 20 covered by a louver 22 according to one embodiment.

FIG. 28B shows a schematic cross-sectional view of the vane 21 of the louver 22 shown in FIG. 28A . The blades 21 of the louver 22 are designed as flexible luminous means 100 , similar to those described for example in connection with FIG. 25 .

Preferably, the luminous means 100 comprises a substrate 1 which is configured to be opaque to light. The substrate 1 can be, for example, a metal substrate 1 or a plastic substrate. In this case, in particular the vanes of conventional shutters can be used as substrate 1 .

A layer sequence comprising at least the first electrode, the organic layer stack 4 , the second electrode 3 and the encapsulation 6 is then applied to the blade as the substrate 1 of the light-emitting component 100 . The encapsulation is preferably light-transmissive.

When the shutter 22 is closed, the blades 21 of the shutter 22 are preferably oriented relative to the window 20 so that the light-tight substrate 1 faces outwards and the light-transmissive encapsulation faces inwards (ie, into the room). In this way, a blind constructed in this way can be used as room lighting.

For this purpose, the organic layer stack 4 is preferably suitable for generating sunlight-like white light. The organic layer stack 4 can be constructed, for example, as explained in conjunction with FIG. 1 . Advantageously, a daylight-like illumination is achieved in this way in terms of radiation direction, radiation behavior and light perception. In this way, a room darkened by the shutter 22 can be illuminated with a particularly natural-looking light. With the aid of such a blind, for example, the room can also be protected from curious eyes and at the same time illuminated. Furthermore, the organic layer stack 4 can also be suitable for generating colored light. Such blinds can, for example, also have a decorative function in addition to a darkening function.

Figure 29A shows a schematic top view of a window 20 covered by a curtain 23 according to one embodiment.

FIG. 29B shows a schematic cross-sectional view of the curtain 23 .

The curtain is designed, for example, as a flexible luminous means 100 , as described in conjunction with FIG. 26 or 27 . That is, the curtain 23 comprises a flexible substrate 1 formed by a plastic film or laminate. The substrate 1 is preferably designed to be light-tight.

The encapsulation of the luminous means 100 is in the form of a light-transmissive film, a light-transmissive laminate or a light-transmissive thin-film encapsulation. The opaque substrate faces the window. The light-transmitting encapsulation 6 faces away from the window 20 into the room.

The curtain 23 can be connected to the power supply device 10 via a rod 24 or a cable, for example, and can be powered by it. The curtain 23 thus formed is capable of illuminating a room with light very similar to daylight in terms of radiation direction, radiation characteristic and color.

A schematic cross-sectional view of another embodiment of the curtain 23 is described in conjunction with FIG. 29C . In this exemplary embodiment, the luminous means 100 are applied to a textile support, for example to a conventional textile curtain 25 . In this case, the luminous means 100 are preferably designed as flexible and optionally light-transmissive luminous means 100 , as described in conjunction with FIG. 26 or 27 . The fabric material of the curtain 25 here faces the window 20 , the luminous means 100 facing away from the window 20 .

Preferably, the light emitting device 100 is fixed on the curtain 25 through a hook connection. For this purpose, hook connections are glued, for example, on the second main surface 102 of the substrate 1 of the luminous means 100 (compared to this also with the embodiment of the luminous means 100 described here described in conjunction with FIG. 49 ). In this way, the luminous means 100 can be detached from the fabric curtain 25 well, so that, for example, the fabric curtain can be washed or a faulty luminous means 100 can be replaced particularly easily. In the case of a light-transmissive design of the luminous means, it is advantageously obtained that the curtain is visible through the luminous means.

FIG. 30 shows a schematic top view of a window 20 covered by a fabric curtain 25 .

Unlike the embodiment of Figure 29C, the light emitting devices 100 in this embodiment do not completely cover the fabric material, but are applied to the shade in individual, lesser applications. In this way, for example, luminous means 100 of a predetermined size and shape can be applied to the textile curtain 25 . In this case, the luminous means can form, for example, stylized stars, moons, hearts or strings. The curtain 25 thus formed is particularly well suited as night lighting for a baby's room, Christmas lighting or display window advertising purposes. The luminous means 100 is preferably a reflective and/or polychromatic flexible luminous means.

The individual luminous means 100 can be contacted via conductor tracks 26 . For this purpose, the conductor strip 26 is fastened to the fabric curtain 25 or woven into the fabric curtain 25 . In turn, the light emitting device 100 can be powered via a cable or rod 24 connected to the power supply device 10 . In addition, the light emitting devices 100 can also have independent power supply devices, such as batteries, respectively.

Figure 31 shows a schematic cross-sectional view of one embodiment of a light emitting device described herein. The luminous means 100 is, for example, a flexible luminous means 100 , as described in detail in conjunction with FIGS. 25 , 26 and 27 .

The adhesive layer 30 is applied to the second main surface 102 of the substrate 1 facing away from the first main surface 101 of the substrate 1 . The adhesive layer is covered by a protective film 31 . The protective film is detachable from the adhesive layer 30, so the adhesive layer 30 can be exposed by detaching the protective film 31. The light-emitting device 100 is realized in that it is fixed at a predetermined place by gluing in the form of a decal after a simple removal of the protective film 31 .

FIG. 32 shows a schematic perspective view of a furniture component 33 , such as a table, a shelf or storage furniture in general, which is bonded to a self-adhesive luminous means 100 according to FIG. 31 .

Due to the flexibility of the luminous means 100 , the luminous means 100 can also be glued to edges, roundings or edges of the furniture component 33 . With the furniture component 33 and the flexible, self-adhesive luminous means 100 , a furniture component that functions as a lighting device 1000 is realized.

FIG. 33 is a schematic perspective view showing a flexible light emitting device, such as that shown in FIG. 31 , in a curled state. That is to say, the luminous means 100 is configured so flexibly that it can be wound into a roll and unwound from the roll 32 in the direction of the arrow 32 . In addition to a particularly space-saving storage of the luminous means 100 , this also makes it possible to use the luminous means 100 particularly easily, for example, for bonding furniture components, landings, walls, tiles, wall tiles or sanitary installations.

FIG. 34A shows a schematic top view of one embodiment of the lighting device 1000 described herein.

FIG. 34B shows a schematic cross-sectional view of the lighting device 1000 along the tangent line AA'.

The lighting device 1000 according to FIGS. 34A and 34B is a flexible lighting device. The flexibility of the lighting device 1000 is achieved due to the fact that a rigid light-emitting device 100, that is to say a light-emitting device 100 which is not flexible per se, is embedded in a flexible light-emitting device 100 because it contains, for example, a rigid substrate 1 and/or a rigid encapsulation 6. Sexual matrix 40.

The lighting device 1000 comprises two flexible supports 42 , 43 , between which the rigid luminous means 100 and the material of the matrix 40 are arranged. At least the carrier 43 is light-transmissive, through which the light generated by the luminous means 100 is emitted during operation. The further carrier 42 can be formed from a light-tight, for example reflective material, for example a metal film.

The space between the two carriers 42 , 43 is filled with the rigid luminous means 100 and the flexible matrix material 40 . The light-transmitting matrix material can contain particles of at least one of the following materials: luminescence conversion material, color filter material, diffusing material.

Suitable matrix materials are eg zeonex, polystyrene, polycarbonate or other plastics which can preferably be processed by injection moulding.

The flexible supports 42 , 43 are, for example, organic glass panels, plastic films or plastic-glass-plastic laminates.

Rigid luminous means 100 can be arranged so close to each other that (possibly via diffuser particles contained in the matrix material) lighting device 1000 produces a homogeneous light perception. This means that the viewer no longer perceives individual luminous means 100 , but that the lighting device 1000 has a single, homogeneous luminous surface.

Alternatively, it is possible to arrange the luminous means 100 so far apart from one another that bridges between the luminous means are perceivable. In this case, the spaces between the individual luminous means can be filled with a matrix material containing light-absorbing particles. The light-absorbing particles can be, for example, particles of carbon black or dyes.

The conductor strips 41 interconnecting the individual luminous means 100 of the lighting device 1000 are arranged in the matrix material. This ensures flexibility of the lighting device. The conductor strip 41 is formed of a thin metal wire or a thin wire laid in a zigzag shape.

The supports 42 , 43 of the lighting device 1000 can be selected so as to be load-bearing, so that the lighting device 1000 withstands loads of up to several hundred kilograms without damage. In this way, the lighting device 1000 can be used as a bottom coating.

In another embodiment of the lighting device 1000 , as described in connection with FIGS. 34A and 34B , at least one of the two supports of the lighting device 1000 is designed to be rigid. The rigid carrier can, for example, have a predeterminable curvature, so that a three-dimensionally formed lighting device 1000 is obtained, the shape of which is invariable, ie rigid.

For the light emitting device 100 of the lighting device 1000 as described in connection with FIGS. 34A and 34B , all light emitting devices 100 described herein can be used. Colored, translucent, reflective or polychromatic, flexible lighting devices can be produced particularly easily and cost-effectively in this way.

FIG. 35A shows a schematic top view of a luminous means 100 of the luminous means 100 described here according to one embodiment.

FIG. 35B shows a schematic cross-sectional view of the light emitting device 100 in FIG. 35A along the line AA'.

The light emitting device described in conjunction with FIGS. 35A and 35B is a multicolor light emitting device.

As schematically shown in the top view of FIG. 35A , the light emitting device comprises first and second color subregions arranged laterally side by side. The first color subregion 50 and the second color subregion 51 are adapted to emit light of different colors. The first color subregion 50 is suitable for emitting light of a first color. The second color subregion 51 is suitable for emitting light of a second color. The first color is different from the second color.

In the embodiment of the light emitting device described in connection with Fig. 35A, the first and second color subregions 50, 51 are arranged relative to each other in a checkerboard pattern. That is to say, the first and second color subregions 50, 51 are arranged at the grid points of the square grid, so that each first color subregion 50 not arranged at the edge of the light emitting device 100 has four second color subregions 51 as The nearest neighbours, which are laterally adjacent to the first color subregion 50 . The same applies to the second color subregion 51 .

The color subregions 50 , 51 are here formed according to the pixel pattern of the display. The size of each color subregion is preferably at least 1 mm ² .

As shown in the schematic cross-section of FIG. 35B, the first and second color subregions 50, 51 may contain different luminescence conversion materials or different color filter materials, which are related to the different color vision of the first and second color subregions. Thus, the first color subregion 50 contains, for example, a first luminescence conversion material and/or a first color filter material 52 . The second color subregion 51 then contains a second luminescence conversion material and/or a second color filter material 53 .

The luminescence conversion material or the color filter material can be arranged in a layer of the luminous component parallel to the first main surface 101 of the substrate 1 of the luminous component 100 and arranged such that when the organic layer stack 4 is in operation At least the majority of the electromagnetic radiation generated is emitted through the layer.

In the exemplary embodiment described in connection with FIG. 35B , the luminous means 100 comprises a substrate 1 on which the first electrode is applied. An organic layer stack 4 is applied to the side of the first electrode 2 facing away from the substrate, which contains at least one organic layer designed to generate light.

The organic layer stack 4 is followed by a second electrode 4 on its side facing away from the first electrode 2 .

A layer comprising a first luminescence conversion material 52 and a second luminescence conversion material 53 and/or a first and a second color filter material is arranged on the side of the second electrode 3 facing away from the organic layer stack 4 . The light emitting device 100 is hermetically separated from the surroundings by the encapsulation 6 .

By suitable structuring of the first electrode 2 and/or the second electrode 3 , the color divisions can be controlled independently of each other.

In particular, the production of the luminous means 100 can take place as in the remaining exemplary embodiments described. A particularly flexible, light-transmissive and/or reflective luminous means with at least two color subregions can thus be realized.

For example, the materials described in detail above are suitable as the first and/or second luminescence conversion material.

Materials such as those described in detail above are suitable as first and second color filter materials.

For reasons of drawing simplicity, the embodiment described in connection with Figures 35A and 35B only draws two different color regions. However, the luminous means 100 can contain a large number of different color subregions, which are suitable for generating light of different colors in pairs.

In an extreme case, the light color of each color subregion is different from the light color of other color subregions of the light emitting device. This is shown schematically in FIG. 35C , which illustrates a further exemplary embodiment of a multicolor luminous means 100 described here by way of a schematic plan view. In this exemplary embodiment, the luminous means has five different color subregions 50a to 50e, which each generate light of a different color in pairs.

FIG. 36 shows a schematic cross-sectional view of a light emitting device 100 according to another embodiment of the light emitting device 100 as shown, for example, in the schematic top view of FIG. 35A .

The light emitting device described in connection with Fig. 36 is a multicolor light emitting device.

In the embodiment of the light emitting device 100 of FIG. middle. For example, the encapsulation part 6 of the light emitting device 100 may be formed by a plate or a flexible film in which the material is embedded.

This makes it possible to obtain a luminous means 100 whose desired color vision can be adjusted by selecting the encapsulation 6 . The construction of the light emitting device 100 may proceed as in the embodiments discussed in detail above or below with respect to the remaining elements of the light emitting device. A particularly bendable, light-transmissive and/or reflective luminous means with at least two color subregions can thus be achieved. The functional components of the luminous means, such as the first electrode 2 and the second electrode 3 and the organic layer stack 4 , can be produced independently of the encapsulation 6 .

FIG. 37 shows a schematic cross-sectional view of another embodiment of the multicolor light emitting device 100 described herein. The active region of the substrate contains subregions which in each case correspond to color subregions. In this exemplary embodiment, the different color subregions 50 , 51 of the luminous means 100 are achieved by different emitter materials in the organic layer stack. That is to say, the organic layer stack is structured in a lateral direction. The first and second color subregions differ at least in the organic layers designed to generate light. The first color subregion 50 contains, for example, a first illuminant material, and the second color subregion 51 contains a second illuminant material different from the first illuminant material. The construction of the luminous means 100 can then proceed as in one of the other exemplary embodiments with respect to the remaining elements of the luminous means. As a result, a particularly bendable, light-transmissive and/or reflective luminous means with at least two color subregions can be realized.

FIG. 38 shows a schematic top view of the first and second electrodes 2 , 3 of another embodiment of a multicolor light emitting device 100 . As can be seen from FIG. 38 , the first and second electrodes 2 , 3 are in each strip-shaped configuration. In this way the individual color subregions 50 , 51 can be controlled independently of one another. In this case, the luminous means 100 are constructed in the manner of a passive matrix display device. The control of the individual color subregions 50 , 51 takes place via a control device 11 which can be arranged outside the luminous means 100 or integrated into the luminous means 100 . The luminous means 100 are powered by the power supply device 10 via the control device 11 .

FIG. 39 shows a schematic top view of another embodiment of the multicolor light emitting device 100 described herein. In this embodiment, all first color subregions 50 and all second color subregions 51 are interconnected by electrical connections 54 or 55, respectively. That is to say, for example, all first color subregions 50 can be controlled jointly and simultaneously in this way. All second color subregions 51 can likewise be controlled jointly and simultaneously. Conversely, the first and second color subregions 50, 51 can be controlled separately from each other. The light emitting device 100 constructed in this way also has four working states:

The light-emitting device can be turned off, so that no color partition generates light, that is, the color partition does not emit light;

all the first color subregions 50 of the light emitting device 100 emit light, and the second color subregions 51 do not emit light,

all second color subregions 51 of the light emitting device 100 emit light, the first color subregions 50 do not emit light, and

• The first and second color subregions 50, 51 emit light, whereby the light emitting device 100 emits light of the first and second color.

FIG. 40A shows a schematic top view of one embodiment of the lighting device 1000 described herein. The lighting device 1000 includes a plurality of multicolor light emitting devices 100 , such as described in connection with FIGS. 35A , 35B, 35C, 36 , 37 or 39 .

As shown in the enlarged part of FIG. 40B , each light emitting device of the lighting device 1000 includes four color zones 50a, 50b, 50c and 50d:

• The first color subregion 50a is suitable for emitting green light when the lighting device 1000 is in operation, for example.

• The second color subregion 50b is suitable for emitting red color light when the lighting device 1000 is working.

• The third color subregion 50c is suitable for emitting blue color light when the lighting device 1000 is in operation.

• The fourth color subregion 50d is suitable for emitting white light when the lighting device 1000 is in operation.

The color subregions of each luminous means 100 of the lighting device 1000 are now separated and can be controlled independently of each other. To this end, the lighting device 1000 comprises a control device 11 which may contain, for example, a microcontroller. The control device 11 is powered by the power supply device 10 .

Optionally, an optical element 60 is arranged behind the luminous means 100 of the lighting device 1000 on its light-emitting front side 100a. Optical element 60 is preferably a diffuser plate. That is, the light irradiating the optical element 60 is scattered by the optical element 60 . In this way, the individual color subregions are no longer perceived by the viewer as separate elements when the lighting device 1000 is in operation, but the lighting device 1000 appears as if it has a single, uniform luminous surface. The light-emitting surface of the lighting device 1000 consists of the front side where the light-emitting devices of the lighting device emit light.

The optical element 60 is also preferably suitable for mixing the light generated by the color subregions 50 a , 50 b , 50 c , 50 d of the individual luminous means 100 . In this way, the lighting device 1000 is adapted to generate mixed light of two or more of these colors in addition to the light of the colors of the respective subregions. Overall, a particularly flexibly usable lighting device is achieved in this way, which is suitable for generating light of a large number of different colors in a simple manner.

If the luminous means 100 of the lighting device 1000 additionally have at least one color subregion 50d suitable for generating white light, the brightness of the light radiated by the lighting device 1000 can also be adjusted particularly simply by supplying said color subregion.

FIG. 41 shows a schematic top view of a further exemplary embodiment of a luminous means 100 described here. The luminous means 100 has at least two color subregions 51 and 50 . For example, the color divisions can be set correspondingly in conjunction with the color divisions of the multicolor light emitting devices described in FIGS. 35A , 35B, 35C, 36 , 37 , 38 , 39 , 40A, 40B.

In the luminous means 100 described in conjunction with FIG. 41 , the first and second color subregions 50 , 51 are connected antiparallel to one another. That is to say, when the light-emitting device 100 is supplied with power in the first direction, for example, the first color subregion 50 is switched on in the forward direction, it generates light of the first color. On the other hand, when the second color subregion 51 is switched on in the cut-off direction, no light is generated in the second color subregion.

By simply reversing the direction of the current flow, the second color subregion 51 can be powered in the forward direction in the next time interval, so that light of the second color is produced. The first color subregion 50 is then switched on in the cut-off direction, so that no light is generated in the first color subregion 50 .

The color subregions 50 can be integrated on a common substrate. Furthermore, the color subregions can also be individual small light emitting devices connected in antiparallel to each other.

The control of such a luminous means 100 preferably takes place via a control device 11 in which a pulse width modulation circuit 12 is integrated. The pulse width modulation circuit 12 is adapted to generate a current having a first current direction for a first period of time. During the second period, the pulse width modulation circuit 12 is adapted to generate a current having a second current direction opposite to the first current direction.

The control device 11 of the luminous means 100 can be integrated into the luminous means 100 or it can be arranged outside the luminous means. The luminous means 100 are powered by the power supply device 10 via the control device 11 .

FIG. 42 shows a schematic cross-sectional view of a light emitting device 100 of another embodiment of the light emitting device 100 described herein.

The substrate of the light emitting device 100 contains an active region 5 . The active area contains at least the first electrode 2 , the organic layer stack 4 and the second electrode 3 .

On the substrate, a photodetector 65 is arranged at a distance from the organic layer stack.

The photodetector 65 can, for example, be produced together with the electrodes and the organic layer stack on the active region 5 . The photodetector 65 comprises at least a first electrode 2 , a second electrode 3 and a photodetective layer sequence 66 arranged between the two electrodes. The photodetective layer sequence 66 contains organic materials. The photodetective layer sequence 66 also includes at least one layer containing an organic material.

In this case, in particular, the photodetector 65 can be designed exactly like the organic layer stack between the two electrodes of the luminous means 100 .

The photodetector 65 is designed such that the brightness and/or chromaticity coordinates of the light generated by the active region 5 can be detected. For this purpose, the photodetector 65 can be connected to the control device 11 with a suitable evaluation circuit. The control device 11 is preferably also arranged on the first main surface 101 of the substrate 1 of the luminous means 100 . Alternatively, the control device 11 can be arranged outside the luminous means 100 .

As shown in the cross-sectional schematic diagram of FIG. 42 , the photodetector 65 and the organic layer stack can be encapsulated by a common encapsulation part 6 . The encapsulation part is the encapsulation part mentioned in the relevant content of the light emitting device 100 described in detail above. That is, the encapsulation 6 is formed, for example, by glass, plastic film, plastic-glass-plastic laminate, metal film, metal sheet, cap or thin-film encapsulation. The encapsulation part 6 and/or the substrate 1 of the light emitting device 100 are designed to be light-transmissive.

A further exemplary embodiment of the luminous means described here is explained in conjunction with FIG. 43 with the aid of a schematic cross-sectional view.

In this exemplary embodiment, the control device 11 is arranged together with the organic layer stack of the luminous means 100 on the first main surface 101 of the substrate 1 . The control device 11 can contain organic material, for example. Advantageously, the control means can then be produced with the same manufacturing method as the active region 5 . This enables particularly cost-effective production of the luminous means 100 . The control device 11 is electrically conductively connected to the organic layer stack of the luminous means 100 either via additional electrical leads 9 , for example bonding wires 902 , or via the first and second electrodes 2 , 3 . The control device 11 is suitable for supplying the active region 5 of the luminous means 100 with power in a predetermined manner.

In particular, the control device 11 can be adjusted from the outside, for example by a user of the luminous means 100 . That is to say, the user can adjust a certain working state of the light emitting device 100 through the control device 11 . As further shown in FIG. 43 , the control device 11 and the organic layer stack of the luminous means 100 are encapsulated by a common encapsulation 6 . The encapsulation part 6 is the encapsulation part 6 mentioned in the relevant content of the light emitting device 100 described in detail above. That is, the encapsulation 6 is formed, for example, by glass, plastic film, plastic-glass-plastic laminate, metal film, metal sheet, cap or thin-film encapsulation. The encapsulation part 6 and/or the substrate 1 of the light emitting device 100 are designed to be light-transmissive.

FIG. 44 shows a schematic top view of a further exemplary embodiment of the luminous means 100 described here. In the embodiment of the light emitting device, the photodetector 65 as explained in connection with FIG. 42 and the control device 11 as described in more detail in connection with FIG. 43 are jointly arranged on the first main face of the substrate 1 of the light emitting device 100 101 on. This enables a particularly compact and self-contained light emitting device 100 . The photodetector is preferably connected to a control device 11 which is adapted to power the organic layer stack of the light emitting device 100 as a function of the measured values determined by the photodetector 65 . The measured values may, for example, be brightness and/or color coordinates of the light produced by the organic layer stack 4 of the luminous means 100 . Furthermore, it is possible to additionally or alternatively provide a photodetector 65 for detecting ambient light. In this case, the power supply of the organic layer stack also takes place as a function of the ambient brightness.

In the exemplary embodiment of the luminous means 100 described in connection with FIG. 44 it is especially possible that the organic layer stack, the photodetector 65 and the control device 11 each contain at least one organic material. These elements of the light emitting device 100 can be made by the same manufacturing method. This enables a particularly simple and cost-effective production of the luminous means 100 .

Another embodiment of the light-emitting device 100 described herein is explained with reference to the schematic cross-sectional view of FIG. 45 .

According to the embodiment described in conjunction with FIG. 45 , the organic layer stack 4 differs from some of the embodiments of the light-emitting device described in detail above by comprising a plurality of layers 403 , 404 , 405 designed to generate light.

Each of these layers designed to generate light forms a color subregion of the luminous means 100 . That is to say, in this exemplary embodiment the color subregions of the luminous means are arranged vertically one above the other. The different layers designed to generate light preferably differ in their emitter materials. These layers are therefore suitable for generating light of mutually different colors when the light emitting device is in operation. For example, the first layer 403 designed to generate light is suitable for generating red light. The second layer 404 is suitable for generating green light. The fourth layer 405, designed to generate light, is adapted to generate blue light.

The following emitter materials are suitable, for example, for generating light of the indicated colors:

- Blue light: DPVBi = 4,4'-bis(2,2-diphenyl-vin-1-yl)-diphenyl

- Blu-ray: SEB-020

- Green light: Irppy = fac-tris(2-phenyl-pyridyl) iridium complex

- Red light: TER-012

- Red light: DCM2: 4-(dicyanomethylene)-2-methyl-6-(julolidin-4-yl-vinyl)-4H-pyran

The remaining elements of the light emitting device 100 , such as the substrate 1 , the first electrode 2 , the second electrode 3 and the encapsulation 6 are implemented corresponding to other exemplary embodiments of the light emitting device 100 .

FIG. 46 shows a schematic perspective sketch in combination with the luminous means 100 shown in FIG. 45 . The luminous means are connected to a control device 11 which is suitable for adjusting the color of the light produced by the luminous means 100 . For this purpose, the control device 100 preferably includes a pulse width modulation circuit 12 . Depending on the electric field strength generated in the layer stack 4 when powering the light-emitting device 100 between the first electrode 2 and the second electrode 3, the recombination of charge carriers in the organic layer stack 4 can be controlled such that the recombination is mostly at a pre-determinable A given layer designed to generate light. That is to say, in this way, for example, it can be set that recombination takes place primarily in the layer 404 designed to generate light. In this way, mainly green light is generated by the luminous means 100 .

The field strength in the organic layer stack 4 can be adjusted by means of a pulse width modulation circuit 12 of the control device 11 . The electric field strength is adjusted, for example, by the pulse duration and pulse height of the pulse-width-modulated signal.

As schematically illustrated in FIG. 47 , the color of the light produced by the light emitting device 100 in the CIE standard color table depends on whether the pulse width modulation circuit 12 generates a pulse width modulated signal with a short pulse duration 1220, or whether the light emitting device 100 passes through Continuous current 1210 power supply.

The pulse height of the pulse width modulated signal substantially determines the brightness of the light produced by the light emitting device 100 . In a nutshell, the color and brightness of the light generated by the light emitting device 100 can be adjusted through the pulse width of the modulation circuit 12 .

The control device 11 can also be connected to a photodetector 65 . As described in conjunction with FIGS. 42 and 43 , the photodetector 65 is suitable, for example, for detecting the chromaticity coordinate and/or the brightness of the light produced by the luminous means 100 . The adjustment of a certain chromaticity coordinate of the light generated by the light-emitting device 100 can be performed by an adjustment according to the value determined by the photodetector 65 . That is to say, the control device 11 contains a regulating switch circuit, which can regulate a certain color locus of the light generated by the luminous means 100 . The desired chromaticity coordinates are preferably predeterminable by the user from outside the luminous means.

The application possibilities of the multicolor luminous means 100 as described in connection with one of the preceding exemplary embodiments are explained with reference to FIG. 48A with the aid of a schematic plan view.

In this embodiment, the light emitting device 100 is applied to a piece of textile clothing 27 . The luminous means 100 are fastened to the clothing part 27 , for example by means of a hook connection 34 which is arranged on the second main surface 102 of the substrate of the luminous means, see also FIG. 49 for this.

As the schematic illustration in FIG. 48B illustrates, the luminous means 100 are connected to a control device 11 which can have a pulse width modulation circuit, for example. The wearer of the clothing piece 27 can adjust the brightness and color of the light generated by the light emitting device 100 through the control device 11 . In addition, the control device 11 can be provided in order to adjust the brightness and/or the color of the light generated by the luminous means 100 as a function of the measured values determined by the sensor 67 .

The sensor 67 may, for example, be a sensor adapted to determine the body temperature, pulse frequency and/or skin resistance of the wearer of the piece of clothing 27 .

An elevated body temperature can be signaled, for example, by the red light generated by the luminous means 100 . Lower temperatures can be signaled by the light emitting device 100 producing blue light.

Overall, the clothing part 27 together with the luminous means 100 forms a lighting device, the clothing part 27 being designed as a carrier. The power supply device 10 of the luminous means 100 can be implemented, for example, by a battery integrated into the piece of clothing 27 or into the luminous means 100 .

The light emitting device 100 is used, for example, as a mood indicator. A wearer of a piece of clothing 27 having a light emitting device 100 can signal his emotional state by adjusting the color of light produced by the light emitting device 100 .

Furthermore, it is possible to use such a piece of clothing 27 with luminous means 100 in medical or military applications. The light emitting device 100 enables simple monitoring of certain bodily functions of the wearer of the piece of clothing 27, such as body temperature, skin resistance and pulse frequency.

Figure 49 shows a schematic cross-sectional view of one embodiment of a light emitting device described herein. The luminous means 100 is, for example, a flexible and/or multicolored luminous means 100 as described in connection with the embodiments explained in detail above.

Hook connection 34 is applied to second main surface 102 of substrate 1 facing away from substrate 1 of the first main surface. The hook connection 34 is glued, for example, on the second main surface 102 of the substrate 1 facing away from the first main surface of the substrate 1 . The light emitting device 100 is mechanically connected to a textile material, such as a garment piece 27 or a curtain 25 by means of a hook connection 34 .

A further application possibility of a multicolor luminous means such as that described in connection with one of the above figures is explained with the aid of a schematic perspective sketch in connection with FIG. 50 . The luminous means 100 are fastened here on a furniture component 33 , for example on a table top. The fastening of the luminous means 100 can take place, for example, with an adhesive layer as explained in conjunction with FIG. 32 . The color of the light emitted by the light emitting device 100 can be adjusted according to the desire of the user. Such furniture elements 33 can also be used for product display in addition to domestic use.

FIG. 51 shows in a schematic perspective sketch the use of a multicolor luminous means 100 as room lighting, for example as ceiling lighting or wall lighting.

Depending on the wishes of the user, in this way a room can be illuminated with light of a certain color and/or a certain color temperature. In this case, the multicolor luminous means 100 can in particular be a flexible, light-transmissive and/or reflective luminous means 100 .

FIG. 52 shows a schematic perspective view of an exemplary embodiment of a luminous means 100 described here.

The substrate 1 , the electrodes 2 , 3 , the organic layer stack 4 and the encapsulation 6 of the luminous means 100 are configured correspondingly to the further luminous means described here.

In the exemplary embodiment of FIG. 52 , electrical connection locations 70 are formed on the second main surface 102 of the substrate 1 of the luminous means 100 . In the exemplary embodiment described in conjunction with FIG. 52 , the connection point 70 is designed as a connection point protruding from the substrate. The connection location 70 is connected to the first electrode 2 and the second electrode 3 of the substrate, for example via the electrical leads described in detail above, and serves for electrical contacting of the luminous means 100 from outside the luminous means 100 .

Furthermore, the connecting points 70 of the luminous means 100 described in connection with FIG. 52 serve for the mechanical fastening of the luminous means 100 to another luminous means 100 or to a carrier.

FIG. 53 shows a first possibility for forming the connection location 70 in the exemplary embodiment of the luminous means 100 described in connection with FIG. 52 . In this case, the connection points 70 of the luminous means 100 are designed as connection pins 71 . The connecting pin is, for example, cylindrically configured. In order to contact and fix the luminous means 100 , these connection pins are pressed into corresponding connection holes. Preferably, in addition to the electrical contacting, there is also a mechanical fastening of the luminous means 100 by means of a press fit.

In conjunction with FIG. 54 , a further configuration possibility of the connection point 70 of the luminous means 100 of FIG. 52 is shown in a schematic perspective sketch. In this case, the connection point 70 is designed as a connection plug 72 . The connecting plug of Fig. 54 is designed to plug mode. The connection plug 72 has a first electrically conductive region 76 a , which is electrically conductively connected, for example, to the first electrode 2 of the luminous means 100 . The connecting plug 72 also has a second electrically conductive region 76 b which is electrically conductively connected to the second electrode 3 of the luminous means 100 . An electrically insulating region 77 separates the two electrically conductive regions 76a, 76b from each other.

In conjunction with FIG. 55 , another configuration possibility of the connection point 70 of the luminous means 100 as shown in FIG. F52 is shown in a schematic plan view. In this case, the connection point 70 is designed as a connection plug 72 , wherein the conductive regions 76 a , 76 b are arranged laterally next to each other. The electrically conductive regions 76 a , 76 b are here cylindrically configured.

An exemplary embodiment of a luminous means 100 described here is explained in more detail with the aid of the schematic perspective sketch of FIG. 56 .

In contrast to the exemplary embodiment in FIG. 52 , in this exemplary embodiment the connection locations 70 are arranged on the side face 105 of the substrate 1 of the luminous means 100 . The connection point 70 can be designed as explained in conjunction with FIGS. 53 , 54 and 55 . That is to say, the connection point is designed as a connection pin or as a connection plug.

The arrangement of the connection points 70 shown in FIG. 56 on the side faces 105 of the luminous means enables particularly simple connection and electrical contacting of a plurality of luminous means 100 configured in the same shape to a lighting device with an extended luminous area. In this case, the luminous area of the lighting device consists of the front side where the light-emitting means of the lighting device emit light.

A further exemplary embodiment of a luminous means 100 is described with reference to the schematic perspective sketch of FIG. 57 . In this exemplary embodiment, the connection location 70 is formed on the second main surface 102 of the substrate 1 of the luminous means 100 . In this case, the connection locations 70 are formed by recesses or perforations in the substrate 1 .

FIG. 58 shows a schematic plan view of a first possibility for forming the connection location 70 of the luminous means 100 of FIG. 57 . In this case, the connection point 70 is designed as a conductive recess 73 or as a contact hole. By pressing in connection pins such as shown in FIG. 53 , the luminous means 100 are electrically contacted and mechanically fixed via the conductive recesses.

FIG. 59 shows a schematic top view of a further exemplary embodiment of a connection point 70 of the luminous means 100 described in conjunction with FIG. 57 . In this case, the connection point 70 is designed as a connection socket 74 . Each connection socket 74 has two conductive regions 76a, 76b, which are respectively connected to the electrodes 2, 3 of the light emitting device 100. For example, such a connection socket 74 can be electrically contacted via a connection plug 72 as shown in FIG. 54 .

FIG. 60 shows a schematic plan view of another embodiment of the connection point 70 of the luminous means 100 of FIG. 57 . In this case, the conductive areas 76 a , 76 b are designed as conductive coatings (for example metal layers) of connection sockets, which are provided in the substrate 1 of the light emitting device 100 . Conductive regions 76a and 76b are in this case arranged laterally side by side. For example, such a connection socket 74 can be electrically contacted via a connection plug 72 as shown in FIG. 55 .

The schematic perspective sketch of FIG. 61 shows a further exemplary embodiment of the luminous means 100 described here. In contrast to the luminous means described in connection with FIG. 57 , the connection location is designed as a recess in the side surface 105 of the substrate 1 of the luminous means 100 . The specific configuration of the connection point 70 can be realized according to the connection point 70 described in conjunction with FIGS. 58 , 59 and 60 .

FIG. 62A shows a further exemplary embodiment of a luminous means 100 described here in a schematic perspective sketch. In this exemplary embodiment, the electrical contacting and the mechanical fixing of the luminous means are effected by mutually separate elements. The mechanical fastening of the luminous means takes place via the mechanical connection 78 . In the exemplary embodiment of FIG. 62A , the mechanical connection is arranged on the second main face 102 of the substrate 1 of the luminous means 100 . The mechanical connection 78 is designed as a clip, which engages in a corresponding recess for fastening the luminous means 100 .

FIG. 62B shows a partially enlarged schematic perspective view of the pin connection portion 75 .

For electrical contacting of the luminous means, the luminous means 100 has a pin connection 75 which is likewise arranged on the second main surface 102 of the substrate 1 . The pin connection part 75 includes a plurality of pins 75a. At least one pin 75 a contacts the first electrode 2 , and at least one second pin 75 b contacts the second electrode 3 . For example, further pins 75 c can be provided for contacting the control device 11 integrated into the luminous means 100 .

Another embodiment of the light-emitting device 100 described herein is illustrated in a schematic top view with reference to FIG. 63A . In this embodiment, a mechanical connection 78 to the electrical connection point 70 of the light emitting device 100 is also provided separately. Both the mechanical connection 78 and the electrical connection 70 are arranged on the side face 105 of the substrate 1 of the luminous means 100 . The enlarged view of a portion of FIG. 63B shows the connection site 70 . The connection point has, for example, an electrically conductive recess 73 (for example a contact hole) and a connection pin 71 , as explained in detail in conjunction with FIG. 58 or 53 .

FIG. 64 shows a schematic top view of one embodiment of the lighting device 1000 described herein. The lighting device 1000 includes at least two light emitting devices 100 . The luminous means 100 has connection locations arranged on a side face 105 of the substrate 1 , which are alternately formed as conductive recesses 73 and contact pins 71 . The contact pins 71 of the first luminous means are inserted into corresponding conductive recesses 73 of the second luminous means. The electrical and mechanical connections between the light emitting devices 100 of the lighting device 1000 are established through the connection between the contact pins 71 and the conductive recesses 73 .

The mechanical connection between every two light emitting devices 100 is enhanced, for example, by press fit. For this purpose, the diameter of each contact pin 71 is selected to be equal to or greater than the diameter of each conductive recess 73 . A reinforced connection is obtained by pressing the contact pins 71 into corresponding conductive recesses 73, which can only be released again by applying greater mechanical force.

Alternatively, the connection points can be designed as contact plugs (as described in connection with FIGS. 54 and 55 ) or as corresponding connection sockets (as described in connection with FIGS. 59 and 60 ). This enables electrical and mechanical connection of the light emitting device 100 . In this case, the mechanical connection of the light emitting device 100 can be loosened by applying a small mechanical force. This allows a particularly simple exchange of defective luminous means 100 in lighting device 1000 .

A further exemplary embodiment of a lighting device 1000 is described with the aid of schematic perspective sketches in conjunction with FIGS. 66 and 65 . In this exemplary embodiment, the luminous means 100 are applied to a carrier formed as a carrier grid 81 . The carrier grid 81 has connection points 82 , which are formed, for example, as contact holes, as described in detail in conjunction with FIG. 58 . Alternatively, the contact points 82 can be designed as connection sockets, as explained in more detail in conjunction with FIGS. 59 and 60 .

As described in conjunction with FIGS. 53 , 54 and 55 , the contact pins 71 or the contact plugs 72 form the connection points 70 of the luminous means 100 . The connection points 70 are inserted into corresponding connection points 82 of the carrier grid 81 . A plurality of luminous means 100 are preferably electrically contacted and mechanically fixed on the carrier grid 81 . The lighting device 1000 supplies the working current required for the light emitting device 100 to work through the power supply device 10 .

Another embodiment of the lighting device 1000 described herein is illustrated in conjunction with FIGS. 69 and 65 . In this exemplary embodiment, the lighting device 1000 has a support plate 80 with a plurality of connection points 82 . The corresponding connection points 70 of the luminous means 100 are inserted into the connection points 82 of the carrier plate 80 . In the case that the connection point 70 of the light emitting device is designed as a connection pin 71 or a connection plug 72 , the connection point 82 of the support plate is designed as a conductive recess 73 or a connection socket 74 . For the case where the connection location 70 of the light emitting device 100 is designed as a conductive recess 73 or a connection socket 74 , the connection location 82 of the support plate 80 is designed as a connection pin 71 or a connection plug 72 .

The lighting device 1000 as described in connection with FIGS. 67 and 65 is powered by the power supply device 10 .

Another exemplary embodiment of the lighting device 1000 described here is illustrated in a schematic perspective view with reference to FIG. 68 . The lighting device 1000 has a support body which is configured in the form of a cable system or rod system. The cable or rod system comprises at least two substantially parallel cables or rods 83 made of electrically conductive material. The light emitting device 100 of the lighting device 1000 is powered through the cable or rod 83 .

For mechanical fastening and electrical contacting of the cable or rod 83 , the luminous means 100 has two connection locations designed as connecting rails 84 , which are arranged on opposite sides 105 of the substrate 1 of the luminous means 100 .

The connecting rail 84 is designed in the manner of a cut cylinder. The connecting rail 84 extends over the entire length of its side 105 of the upper substrate 1 , which is fastened thereto.

The connecting rail 84 preferably engages loosely into the cable or rod 83 of the carrier of the lighting device 1000 , so that the lighting device 1000 of the luminous means 100 can be moved along the cable or rod 83 using low mechanical forces. In this way, it is particularly easy to position the luminous means 100 along the cable or rod 83 . The light emitting device 100 can move along the cable or rod 83 even when the lighting device 1000 is in operation. Overall, this allows a particularly flexible use of the lighting device 1000 .

An exemplary embodiment of the connection of the luminous means 100 of the lighting device 1000 described here is explained with the aid of a schematic circuit diagram in conjunction with FIG. 69 . In this embodiment, the light emitting devices 100 are connected parallel to each other. The luminous means 100 is supplied with an operating voltage, for example, by a voltage source 10 . In this case, the luminous means 100 can each contain an integrated control device 11 .

A further embodiment of the lighting device 1000 described here is explained with the aid of a schematic circuit diagram in conjunction with FIG. 70 . In this case, the light emitting devices 100 of the lighting device 1000 are connected in series with each other. The luminous means 100 are supplied with the necessary operating current by the power source 10 in this case. In this case, the power supply 10 is adapted to self-identify the number of light emitting devices 100 of the lighting device 1000 . The luminous means 100 can also contain an integrated control device 11, as described in detail above.

Identification of the luminous means 100 can take place, for example, by measuring the current intensity or voltage. In this case, possible faults of one or more luminous means 100 can also be detected during operation.

Another embodiment of the lighting device 1000 described herein is explained with reference to FIG. 71 . In this case, the lighting device 100 is equipped with a control device 11 as described in detail above. A further control device 11 a of the lighting device 1000 supplies the luminous means 100 with the necessary operating current and supplies control signals to the control device 11 of the luminous means 100 .

Another exemplary embodiment of the lighting device 1000 described here is explained with the aid of a schematic perspective view in conjunction with FIG. 72 . The lighting device 1000 has a plurality of luminous means 100 which are directly connected to each other by means of the above-described wiring and connection technology, or which are applied to a carrier in the above-described manner and electrically connected thereto.

An optical element 60 , formed for example by a diffuser plate, is arranged behind the luminous means 100 on its light-emitting front side. The optical element can be formed, for example, by a light-transmissive plate, for example a glass plate, into which light-scattering particles are introduced. Alternatively, it is possible to roughen the surface of the radiation-transmitting plate so that the transmitted light is diffused due to the refraction of the light as it passes through the plate. The light of the luminous means 100 is diffused by the diffuser plate so that the viewer can no longer perceive the individual luminous means separately. In this way, a large-area lighting device 1000 with a particularly large and uniform luminous area is achieved. In this case, the light-emitting surface of the lighting device is formed by the light-emitting front side of the luminous means of the lighting device.

A further exemplary embodiment of a lighting device 1000 is explained with the aid of a schematic perspective sketch in conjunction with FIG. 73 . The lighting device 1000 can be used, for example, as ceiling lighting. The lighting device 1000 comprises a plurality of luminous means 100 which, as described above, are electrically and mechanically connected to each other via connecting points to the side 105 of the substrate 1 of the luminous means 100 , or are fixed and electrically contacted via rods or cables 83 .

Another embodiment of the lighting device 1000 is described with reference to the schematic perspective view of FIG. 74 . The lighting device 1000 includes a base, and a power supply device 10 and a control device 11 are integrated in the base. The light emitting device 100 of the lighting device 1000 is mechanically fixed and electrically contacted by the rod 83 . Again, the light emitting device described in conjunction with the above embodiments may be used as the light emitting device 100 .

The lighting device 1000 described in conjunction with FIG. 74 is particularly well suited as a floor or table lamp.

In conjunction with FIG. 75 , the display device 1010 is explained in more detail with the aid of a schematic perspective view. The display device 1010 includes an illumination device 1000 as a backlight of the display device 90 . The display element 90 is, for example, an LCD panel. The LCD panel is directly backlit by the lighting device 1000 . That is to say, the illuminating device 1000 is arranged behind the displaying element 90 , so that most of the light generated by the illuminating device 1000 irradiates on the displaying element 90 and backlights it.

The lighting device 1000 used here as a backlight is designed, for example, according to one of the other embodiments described herein. In this case, the lighting device comprises at least two light emitting devices 100 as described herein.

In order to homogenize the light provided for the backlight, it is further possible to arrange an optical element 60 , preferably configured as a diffuser plate, between the imaging element 90 and the light-emitting front side of the luminous means 100 of the lighting device 1000 . The optical element can be formed, for example, by a light-transmissive plate, for example a glass plate, into which light-scattering particles are introduced. Alternatively, it is also possible to roughen the surface of the radiation-transmissive plate, so that the passing light is diffused when passing through the plate due to light refraction. The light from the light-emitting devices 100 of the lighting device is diffused by the diffuser, so that the individual light-emitting devices are no longer separately imaged on the imaging element 90 . In this way, a large-area lighting device 1000 is realized with a particularly large uniform luminous area for backlighting the imaging element 90 .

An exemplary embodiment of the coarse-grained display 95 is explained in more detail with reference to FIG. 76 by means of a schematic top view. The coarse-grained display is designed as a lighting device with a support plate 80 on which a plurality of luminous means 100 are applied. The light emitting device 100 is arranged, for example, in a seven-segment display manner. By powering certain light emitting devices 100, a coarse-grained display 95 suitable for displaying numbers is realized in this way.

FIG. 77 shows a bathroom with a luminous means 100 which is designed as tiles. The luminous means 100 is designed, for example, according to one of the exemplary embodiments described in detail above. The second main face 102 of the luminous means substrate 1 is glued, for example, to a conventional sanitary tile. The power supply of the luminous means can take place, for example, by induction. In this case the electrical conductor strips for connecting the luminous means 100 can be omitted. The luminous means are therefore particularly well suited for use in the hygiene sector, since the risk of short circuits due to moisture is reduced.

A luminous means powered by induction is disclosed, for example, in the publication DE 10 2006 025 115, the disclosure content of which with regard to the construction of such a luminous means is hereby incorporated by reference.

FIG. 78 shows a schematic perspective view of a lighting device 1000 having a light emitting device 100 and a second light source 370 according to an exemplary embodiment. An incandescent lamp is used here as the second light source 370 , which is inserted into the holder of the carrier 371 . Instead of an incandescent lamp, it is also possible to use, for example, a halogen lamp as the second light source 370 . Incandescent lamps are designed such that during operation they emit white light with a chromaticity coordinate in the warm white region of the CIE standard color scale. Instead, the luminous means are designed in such a way that they emit light in the cool white region of the CIE standard color table during operation. The luminous means 100 is here designed to be flexible and permeable to visible light. The light emitting device 100 is arranged as a cylindrical lampshade around the incandescent lamp, so that most of the light emitted from the second light source exits through the light emitting device. In this way, when the lighting device is in operation, mixed-color light is emitted, which comprises the light of the luminous means 100 and the light of the second light source 370 .

In addition, the light emitting device 100 and the second light source 370 are designed to be dimmable, so that the proportion of the light from the incandescent lamp and the light from the light emitting device 100 to the mixed color light can be changed. Depending on the proportion of incandescent light and luminous means light, the chromaticity locus can be adjusted from cool white to warm white by means of a controller 372 in the holding device of the lighting device. Thus, the lighting device according to Fig. 78 is a color changeable lighting device.

FIG. 79 shows a schematic perspective view of another exemplary embodiment of a lighting device 1000 with a luminous means 100 and a second light source 370 . The lighting device is designed to be fixed on the wall. The second light source 370 is a Laval lamp. Laval lamps contain wax introduced into the carrier liquid. In operation of a Laval lamp, the wax and the carrier liquid are heated from one side, usually from below, so that the carrier liquid circulates in the lamp by convection. In addition, the wax forms decorative shapes within the carrier liquid due to heating. The carrier liquid usually has a different color than the wax, so that the Laval lamp emits a mixed-color light comprising a portion of the wax color and a portion of the color of the carrier liquid.

The Laval lamp is here substantially cylindrical and fastened to the wall. The luminous means 100 are designed to be flexible and are arranged as a semi-cylindrical envelope around the Laval lamp, so that the light emitted by the Laval lamp does not impinge on the wall, but essentially exits through the luminous means. The light emitting device 100 preferably also emits light of colors not included in the light of the Laval lamp. The luminous means can, for example, also be designed to be dimmable, so that the color tone of the light emitted from the lighting device can be changed in color by dimming the luminous means. In this way, a color-variable lighting device is obtained, which can bring about particularly impressive color effects. It is also possible to make the Laval lamp dimmable.

Fig. 80A shows a schematic perspective view of a lighting device according to another embodiment. Fig. 80B shows a cross-sectional view of the lighting device of Fig. 80A.

The lighting device according to FIGS. 80A and 80B is likewise a color-variable lighting device 1000 . The lighting device comprises a plurality of LEDs 380 mounted on a support 381 as additional second light sources 370. LED 380 emits light of a first color. A milky white glass plate is arranged on the LED as an optical element 60 , through which the light of the LED is emitted when the lighting device is in operation, so that the milky white glass plate emits colored scattered light of the first color from its front side. Preferably, the opalescent glass pane scatters the light of the LEDs so that an observer positioned in front of the glass pane perceives the actual luminous surface.

The opalescent glass pane also serves as substrate 1 for a luminous means 100 which emits light of a second color different from the first color and is designed to be transparent to visible light. The opalescent glass pane has an active region on which a first electrode transparent to visible light is applied.

An organic layer stack 4 is applied to the first electrode 2 , which is likewise designed to be permeable to visible light. The organic layer stack 4 emits light of a second color different from the first color. A second electrode 3 which is likewise transparent to visible light is applied on the organic layer stack 4 . The visible light-transmissive first and second electrodes 2 , 3 are described, for example, with reference to FIG. 2A . A glass plate is applied as encapsulation 6 on the second electrode 3 , for example by gluing. Unlike the glass pane used as substrate 1 , the glass pane used as encapsulation 6 is designed to be clear.

The lighting arrangement according to FIGS. 80A and 80B can be used, for example, as floor lighting for bars or dance floors. Furthermore, such a color-variable lighting device designed as a color-variable light tile can also be used for medical purposes in light therapy.

FIG. 81 shows a further exemplary embodiment of a lighting device 1000 in which at least one further light source is used in addition to the luminous means 100 . In this case, the luminous means 100 is of rigid and planar design. As second light sources 370 , two cold-cathode lamps are arranged centrally in the front side of the luminous means. Such elements can be used, for example, as ceiling elements.

FIG. 82 shows another embodiment of a lighting device 1000 with a light emitting device and a second light source. The luminous means 100 is designed rigid here like the luminous means according to FIG. 81 . Arranged centrally in the front side of the luminous means is an LED module 390 which comprises a carrier element on which four light-emitting diodes 380 are arranged. In the case of the lighting device 1000 it is advantageous if a point light source, ie the LEDs of the LED module 390 , is combined with a surface light source, ie the luminous means 100 . In this way, the user of the lighting device 1000 can select between different operating states and combine them with one another.

FIG. 83 shows a schematic perspective view of a lighting device 1000 with a luminous means 100 and a second luminous source. The luminous means 100 is designed here to be transparent to visible light and to emit light of a first color. An organic light emitting diode emitting light of a second color is used as the second light source 370 . Organic light-emitting diodes have a radiation-emitting front side, on which the light-emitting means are arranged. When the lighting device is working, the light of the organic light emitting diode passes through the light emitting device 100, so that the lighting device 1000 emits mixed color light, and the mixed color light includes the light of the light emitting device and the light of the second light source. The luminous means 100 and the organic light-emitting diodes are controlled here by a common control device 11 .

84A and 84B show an embodiment of a storage element AM100 , and FIG. 84C shows an embodiment of a storage furniture AM1000 with a storage element AM100 . 84A and 84B show here two schematic cross-sectional views of the storage element AM100. The representation of FIG. 84A is here a sectional view of the storage element AM100 along the section A2 in FIG. 84B, seen from the side with the layer AM5, while the representation of FIG. Sectional view of section A1. FIG. 84C shows a schematic sectional view of storage furniture AM1000 , the section shown in the figure corresponding to that of FIG. 84B . For a better understanding, the arrangement of the storage element AM100 in the storage furniture AM1000 is shown by the dashed area in FIG. 84C . The following description also refers to all of Figures 84A to 84C.

According to the exemplary embodiment shown, the storage element AM100 of the storage furniture AM1000 can contain a substrate AM1 on which a radiation-emitting component in the form of an organic light-emitting diode (OLED) AM11 is applied. In particular, the radiation-emitting component can also be at least one luminous component according to the exemplary embodiments described here.

On the side opposite the OLED AM11, the substrate has a storage area AM10. For this purpose it is particularly advantageous if the substrate AM1 has sufficient thickness and strength so that the storage element AM100 has sufficient stability and strength when an object is placed on the storage surface AM10 . It is also advantageous for this purpose that the substrate AM1 can also contain support structures, by means of which the stability and strength can be increased.

OLED AM11 has a first electrode AM3 on a substrate AM1. A layer sequence AM2 comprising at least one organic layer can be formed on the first electrode AM3, wherein the layer sequence AM2 has an active region which is suitable for emitting electromagnetic radiation during operation by electroluminescence. A second electrode AM4 is applied on the layer sequence AM2. In this case, for example, the first electrode AM3 may be designed as an anode and the second electrode AM4 as a cathode. A further layer AM5 can be applied on the second electrode, which can be used, for example, as an encapsulation for the OLED AM11. In particular, the substrate AM1 and the layer AM5 ensure protection of the OLED AM11 from harmful external influences such as moisture or oxygen or mechanical damage. Alternatively, in this case and in the examples below, the radiation-emitting component can be embodied as an inorganic electroluminescent film.

The substrate AM1 and the first electrode AM3 can preferably be designed to be transparent, so that electromagnetic radiation generated by the active region of the layer sequence AM2 can escape through the deposit surface AM10 . For this purpose, the substrate AM1 can preferably contain glass or consist of glass. Alternatively or additionally, the substrate AM10 may contain or be made of transparent plastic, or contain or be formed of a layer sequence or laminate of glass layers and/or transparent plastic layers. Due to the transparency of the substrate AM1 and the first electrode AM3, objects placed on the storage surface AM10 can be illuminated from below, which means from the storage surface AM10.

Alternatively or additionally, the second electrode AM4 and the layer AM5 can also be designed to be transparent, so that the side of the layer AM5 facing away from the OLED AM11 can be configured as an exit surface for electromagnetic radiation. Objects arranged below the storage element AM100 , for example objects located on other storage elements arranged below the storage element AM100 , can thus be illuminated from above, for example. In this case, the first electrode AM3 and the second electrode AM4 can be designed planar, as shown in the exemplary embodiment, so that a large-area emission of electromagnetic radiation is possible. For this purpose, the layer AM5 can preferably contain glass and/or transparent plastic or consist of glass or transparent plastic, and can also be configured as a laminate or layer sequence containing glass layers and/or transparent plastic layers.

Furthermore, the storage element AM100 has electrical contacts AM31 , AM41 , which are electrically conductively connected to the first and second electrodes AM3 , AM4 respectively via electrical lines AM32 , AM42 . Furthermore, the region AM9 can also be configured as a holding element in the form of a bearing surface, which, as shown here, includes electrical contacts AM31 , AM41 .

The storage furniture AM1000 also has a holder AM7 , which can have a holder AM6 configured as an upholstery. The holder AM6 together with the holder element AM9 of the storage element AM100 , which is configured, for example, as a support surface, can enable the mounting of the storage element AM100 on the holder AM7 . The holding device AM7 can be configured here, for example, as a cabinet wall or shelf wall, a support column or beam or parts thereof with suitable holders AM6. In particular, the holder AM6 can comprise electrical feedthrough contacts AM8 , which are electrically conductively connected to the electrical contacts AM31 , AM41 of the storage element AM100 . The electrically conductive connection between the electrical contacts AM31 , AM41 and the electrical lead contact AM8 can be realized, for example, by mechanical contacting of the electrical contacts AM31 , AM41 and the electrical lead contact AM8 , respectively, which are designed as planar. Alternatively or additionally, the electrical contacts AM31 , AM41 and/or the electrical lead contacts AM8 can be designed, for example, as spring elements or plug connections in order to enable an improved electrically conductive connection. The storage element AM100 and the holding device AM7 can also additionally have other holding elements or holding means, such as screw connections or clips (not shown), in order to ensure increased stability of the storage furniture AM1000.

The first electrical contacts AM31 , AM41 can be connected to a current supply and/or a voltage supply via an electrical lead contact AM8 integrated into the holder AM6 . Further electronic or electrical components for commissioning and controlling the OLED AM 11 can be integrated, for example, into the holding device 7 .

The OLED AM11 is integrated into the storage element AM100 by arranging the OLED AM11 between the substrate AM11 and the layer AM5 which also has a storage surface AM10, so that a storage furniture AM1000 with a storage element AM100 can be realized, so that in a compact structure In this case, a large-area radiation area can be realized on the storage area AM10 and/or on the side of the layer AM5 opposite the OLED.

Alternatively or additionally, the OLED AM11 may comprise further layers, such as a suitable carrier substrate. Thus, for example, the OLED AM11 with the first and second electrodes AM3, AM4 and the layer sequence AM2 can be applied on a carrier substrate and can be arranged together with the carrier substrate on the substrate AM1.

Alternatively, layer AM5 can also comprise a carrier substrate, on which the OLED is applied.

The embodiment of the storage element AM 200 shown in FIG. 85 shows a modification according to the embodiment of the above-mentioned figures and shows a light-emitting organic device in the storage element AM200 comprising a first electrode AM3 of planar configuration , the first electrode has two electrical contacts AM311, AM312, which are electrically conductively connected to the first electrode AM3 via electrical lines AM321, AM322. Furthermore, the second electrode is structured into parallel strips AM401, AM402, which are arranged alternately on the active layer sequence AM2, wherein parallel strips AM401 are electrically conductively connected to electrical contacts AM411 via electrical lines AM421, parallel strips AM402 are via electrical lines AM422 is connected with electrical contact AM412. Thus, the second electrode may have subregions AM401 and AM402 that can be contacted independently of each other. This makes it possible in particular for regions of the active region of the layer sequence AM2 of the OLED AM11 to emit electromagnetic radiation independently of one another, wherein the regions are respectively arranged between the subregions AM401, AM402 of the second electrode and the first electrode AM3. In this case, for example, the active region of the OLED AM11 can also be structured such that the subregion of the OLED AM11 arranged between the subregion AM401 of the second electrode and the first electrode AM3 can emit electromagnetic radiation having a first spectrum, and The partial area of the OLED arranged between the partial area AM402 of the second electrode AM4 and the first electrode AM3 may emit electromagnetic radiation having a second spectrum, wherein the first and second spectrum may be different. By applying current and/or voltage between at least one of the electrical contacts AM311 and AM312 and any one or both of the electrical contacts AM411 and AM412, three different working states can be realized, bringing different luminous sensations to the viewer. For example, the first spectrum can have one or more wavelengths in the blue spectral region, and the second spectrum can have one or more wavelengths in the yellow spectral region or orange spectral region, so that for the viewer, it can be achieved through these three working states. For example, a blue, yellow or orange luminous sensation and a white luminous sensation can also be achieved by superimposing the blue and yellow or orange luminous sensations.

Alternatively, it is also possible for the first electrode to be structured, while the second electrode can be designed to be planar, or both electrodes can be formed as large-area electrode surfaces. In particular, the electrodes can have any desired and suitable structuring, for example also in the form of hieroglyphs, in order to give the viewer the impression of hieroglyphs in addition to the luminous perception.

Particularly preferably, the storage element AM200 has a holding element (not shown) which contains electrical contacts AM311 , AM312 , AM411 , AM412 . Such holding elements can be, for example, contact surfaces, openings, bores and parts of screwed, plugged or clamped connections. A suitable holding device can have a corresponding holding part, which can also have electrical lead contacts, particularly advantageously.

The embodiment of the storage element AM300 shown in FIG. 86 shows another modification of the above-described embodiment of the storage element, in addition to the second electrodes structured in parallel strips in the partial regions AM401, AM402, There is a first electrode which is structured in parallel strips in the partial regions AM301 , AM302 . The partial areas AM301 , AM302 can be electrically conductively connected to electrical contacts AM311 , AM312 via electrical lines AM321 , AM322 , respectively. The first electrode can here have parallel strips AM301 , AM302 which are, for example, perpendicular to the parallel strips AM401 , AM402 of the second electrode. The OLED can thus have, for example, point-like subregions which are produced by the parallel-connected intersections of the electrode subregions AM301 , AM302 and AM401 , AM402 . In particular in this exemplary embodiment, the layer sequence AM2 of the OLED or at least the active region of the layer sequence AM2 can be structured in such a way that via one or both partial regions AM301, AM302 of the first electrode and one of the second electrodes Or applying current and/or voltage between the two partial areas AM401, AM402 Due to different reflection spectra and their mixed spectra, different working states with different luminous sensations can be realized for the viewer. For example, by applying a voltage and/or current between electrical contacts AM311 and AM411, AM312 and AM411, AM311 and AM412, and AM312 and AM412, respectively, a checkerboard-like glowing sensation can be achieved for the viewer, and vice versa between electrical contacts AM311, respectively. Applying a voltage and/or current between AM312 and electrical contacts AM411 and AM412 and between electrical contacts AM311 or AM312 and electrical contacts AM411 and AM412 can cause a luminous sensation of row-like arrangement of like point-like partial areas for the viewer . By applying a voltage and/or current between all contacts of the first and second electrodes, a flat light perception can be achieved for the viewer.

Furthermore, for example, a diffuser plate can also be arranged downstream of the radiation-emitting organic component on the electromagnetic radiation-emitting beam path, so that a homogeneous and planar light perception for the above-mentioned different operating states can be achieved for the viewer.

In particular, the shape, size and spacing between the first and second electrode structured subregions, which are shown purely by way of example in the above-described exemplary embodiments, can each be selected in accordance with the desired luminescence sensation.

The exemplary embodiment of a storage element AM400 according to FIG. 87 shows, for example, a plan view of a storage element with a radiation-emitting organic component with first electrodes AM301, AM302 and second electrodes AM401, AM402 and with Layer sequence AM2 of the active region of the edge region of the bottom AM1. Objects arranged on the storage surface AM10 and/or below the storage element AM400 can thus be illuminated from the side, for example. In particular, the radiation face can also have an optical structure by means of which electromagnetic radiation can exit preferably in the spatial regions between the subregions AM301 , AM401 and AM302 , AM402 of the first and second electrodes.

The structured embodiments of the first and/or second electrodes shown in the above figures (especially in FIGS. 85 to 87 ) are purely exemplary and not intended to be limiting. In particular, the first and/or the second electrode can have more than two partial regions AM301 , AM302 or AM401 , AM402 and correspondingly more than two electrical contacts AM311 , AM312 or AM411 , AM412 . In particular, the shape and arrangement of the electrical contacting and/or holding elements can also differ from what is shown.

FIG. 88 shows an exemplary embodiment of a storage furniture AM2000 with storage elements AM101 , AM102 . For reasons of overview, the storage elements AM101 , AM102 are here only indicated by dotted areas and can be designed, for example, according to one of the above-described exemplary embodiments.

The storage furniture AM2000 has four holding devices AM7 configured as vertical columns or beams. Furthermore, in other embodiments of the invention, the holding device AM7 can also be a part of the furniture wall. The holder AM7 can have a holder AM6 which is suitable for mounting the storage elements AM101 , AM102 on the holder AM7 . For this purpose, the storage elements AM101 , AM102 can have suitable holding elements (not shown in FIG. 88 ) for this purpose. Furthermore, it is advantageous if the holder AM6 comprises electrical lead contacts (not shown in FIG. 88 ), which enable the electrical contacting of the storage elements AM101, AM102 to the radiation-emitting organic components AM311, AM312, AM411, AM412 via them. Electrical contacts (not shown in Figure 88).

The embodiment shown in FIGS. 89A to 89E shows the number and arrangement of electrical contacts and/or holding elements on the storage element AM101 and the number and arrangement of electrical lead contacts and/or holding elements in the holding device AM7 of the storage furniture An example of a top view. The arrows here show the manner in which the storage elements AM101 are arranged in the holding device AM7 , which are shown spatially separated from one another for reasons of overview. Arrows can indicate, for example, that the storage element is moved into the associated holding device, wherein a fixed installation can also be achieved if necessary. The reference signs AM51 to AM55 here can denote both electrical contacts, holding elements and also holding elements comprising electrical contacts. Likewise, reference numerals AM711 to AM715 may denote both electric leads, holders, and holders including electric leads. Furthermore, the dimensions, distances, positions and numbers of the electrical contact or holding elements AM51 to AM55 and the electrical lead contacts or holding pieces AM711 to AM715 are shown purely by way of example.

The holding device AM7 can be, for example, one or more furniture walls, frames, vertical or horizontal beams, wall-mountable beams, wall-mountable holding frames or parts thereof, which can be adapted to hold the storage element AM101 such that The storage surface of the storage element AM101 is substantially parallel to the bottom on which the holding device AM7 is placed, or substantially perpendicular to the wall on which the holding device is mounted or fitted.

For example holding elements AM51 , AM52 or holding pieces AM711 , AM712 as shown in FIG. 89A can be configured as a rail or part of a rail system. Furthermore, it is possible, for example, as shown in FIG. 89B , to form a further holding element AM53 as a bearing surface and a further holding element AM713 as a supporting surface. If the holding elements AM51 , AM52 , AM53 comprise electrical contacts and the holders AM711 , AM712 , AM713 comprise electrical lead contacts, the illustrated embodiment can be adapted for example to the storage element AM400 according to FIG. 87 . Other embodiments according to FIGS. 89C to 89E show other possibilities of having at least four holder elements/electrical contacts or at least four holder/electrical lead contacts.

In particular, several holders or holding elements may comprise electrical contacts or electrical lead contacts, while others do not.

The invention is not restricted to the description with the aid of the exemplary embodiments. Rather, the invention encompasses any novel feature and any combination of features, in particular any combination of features contained in the patent claims, even if said feature or said combination itself is not included in the patent claims or in the examples. explicitly mentioned.

This patent application claims priority from the following German patent applications: DE102006046293.9, DE102006060781.3, DE102006046198.3 and DE102006054584.2. The disclosures of these prior applications are hereby incorporated by reference.

Claims (195)

CLAIMS 1. A light emitting device (100), comprising: - a substrate (1) having a first main face (101), on which a first electrode (2) is applied, - the second electrode (3), and - an organic layer stack (4) in the active region (5) of the substrate (1) between the first electrode and the second electrode (3), wherein the organic layer stack (4) comprises at least one organic layer (401). 2. The light emitting device (100) according to the preceding claim, wherein said first electrode (2) is transmissive to light emitted by the organic layer stack (4) in operation. 3. The light emitting device (100) according to at least one of the preceding claims, wherein the second electrode (3) is transparent to light emitted by the organic layer stack (4) in operation. 4. The light-emitting device (100) according to at least one of the preceding claims, wherein at least one of the first electrode and the second electrode (3) comprises a transparent conducting oxide capable of permeating the organic layer stack (4) Metals or conductive organic materials that emit light. 5. The light emitting device (100) according to at least one of the preceding claims, wherein at least one of the electrodes (2, 3) has a conductive track (2011, 2012, 2013). 6. The light emitting device (100) according to the preceding claim, wherein said conductive track (2011, 2012, 2013) contains metal. 7. The light emitting device (100) according to at least one of the preceding claims, wherein the conductive track (2011, 2012, 2013) has a multilayer structure. 8. The luminous device (100) according to at least one of the preceding claims, wherein the metal tracks (2011, 2012, 2013) are configured as a grid that is permeable to light generated by the layer stack. 9. The light emitting device (100) according to at least one of the preceding claims, wherein the metal track (2011, 2012, 2013) has a thickness of at most 1.5 μm. 10. The light-emitting device (100) according to at least one of the preceding claims, wherein the organic layer stack (4) comprises a doped organic layer (402) comprising a dopant material (410), the organic layer being arranged on Between the at least one organic layer and one of the electrodes. 11. The light emitting device (100) according to the preceding claim, wherein said doped organic layer constitutes the outermost layer of the organic layer stack (4). 12. The light emitting device (100) according to at least one of the preceding claims, wherein the active region (5) is arranged in the encapsulation (6). 13. The light emitting device (100) according to the preceding claim, wherein said encapsulation (6) is transparent to light generated by the organic layer stack (4) in operation. 14. The light emitting device (100) according to at least one of the preceding claims, wherein the encapsulation (6) contains glass. 15. The light-emitting device (100) according to at least one of the preceding claims, wherein the encapsulation (6) consists of a thin-film encapsulation (6) with at least one barrier layer (601, 602). 16. The light emitting device (100) according to the preceding claim, wherein said barrier layer (601, 602) contains one of the following materials: silicon oxide, silicon nitride. 17. The light-emitting device (100) according to at least one of the preceding claims, wherein the thin-film encapsulation (6) comprises a plurality of alternating barrier layers (601, 602), wherein at least two layers differ in their material composition The barrier layers are set in a regular order. 18. The light emitting device (100) according to the preceding claim, wherein one alternating barrier layer (601) contains silicon oxide and the other alternate barrier layer (602) contains silicon nitride. 19. The light-emitting device (100) according to at least one of the preceding claims, wherein the thin-film encapsulation (6) comprises at least one polymer intermediate layer (604) arranged between two barrier layers (601, 602) ). 20. The lighting device (100) according to at least one of the preceding claims, wherein the thin-film encapsulation (6) comprises a protective lacquer layer (603) as an outermost layer. 21. The light emitting device (100) according to the preceding claim, wherein an organic planarization layer (7) is arranged between the second electrode (3) and the thin film encapsulation (6). 22. The light emitting device (100) according to the preceding claim, wherein said organic planarization layer (7) has scattering centers (701). 23. The light emitting device (100) according to the preceding claim, wherein said organic planarization layer (7) contains a luminescence conversion material. 24. The light emitting device (100) according to at least one of the preceding claims, wherein the light emitting device (100) does not contain any getter material. 25. The luminous device (100) according to at least one of the preceding claims, comprising a getter material (611). 26. The light emitting device (100) according to the preceding claim, wherein said getter material (611) is arranged in the active region (5). 27. The light emitting device (100) according to at least one of the preceding claims, wherein the getter material (611) is arranged outside the active region (5). 28. The light-emitting device (100) according to at least one of the preceding claims, wherein the getter material (611) is transparent to light generated by the organic layer stack (4). 29. The lighting device (100) according to at least one of the preceding claims, wherein the glazing of the window (20) is used as substrate (1). 30. The lighting device (100) according to at least one of the preceding claims, wherein the glazing of the window (20) is used as encapsulation (6). 31. The luminous device (100) according to at least one of the preceding claims, wherein the substrate (1) is designed opalescent. 32. The light emitting device (100) according to at least one of the preceding claims, wherein the encapsulation (6) is designed to be milky white. 33. The luminous means (100) according to at least one of the preceding claims, which has electrical leads (9) on the substrate (1) which electrically connect the electrodes to the connection locations (70). 34. The light emitting device (100) according to the preceding claim, wherein said electrical leads (9) are arranged outside the active region (5). 35. The light-emitting device (100) according to at least one of the preceding claims, wherein the electrical lead (9) is configured to be transparent to light generated by the organic layer stack (4). 36. The light emitting device (100) according to at least one of the preceding claims, wherein the electrical lead (9) contains metal. 37. The light emitting device (100) according to at least one of the preceding claims, wherein the electrical lead (9) comprises a transparent conductive oxide. 38. The luminous device (100) according to at least one of the preceding claims, comprising a reflective layer sequence. 39. The light emitting device (100) according to the preceding claim, wherein said reflective layer sequence comprises a dielectric mirror. 40. The luminous device (100) according to at least one of the preceding claims, comprising a reflection-eliminating layer sequence. 41. The light-emitting device (100) according to the preceding claim, wherein the antireflection layer sequence contains a dielectric material. 42. The luminous means (100) according to at least one of the preceding claims, wherein the first electrode (2) or the second electrode (3) is embodied reflectively. 43. The light emitting device (100) according to the preceding claim, wherein the reflective electrode contains silver or gold. 44. The luminous means (100) according to at least one of the preceding claims, wherein the encapsulation (6) is embodied reflectively. 45. The light emitting device (100) according to the preceding claim, wherein the reflective encapsulation (6) comprises a metal cap. 46. The light-emitting device (100) according to at least one of the preceding claims, wherein the reflective encapsulation (6) comprises a getter material (611) which is transmissive to light generated by the organic layer stack (4). 47. The light-emitting device (100) according to at least one of the preceding claims, wherein the reflective encapsulation (6) is formed by a reflective thin-film encapsulation (6) comprising at least one barrier layer (601, 602). 48. The light-emitting device (100) according to at least one of the preceding claims, wherein the reflective thin-film encapsulation (6) comprises at least one of the following layers: a silver layer (337a), a copper layer (337b). 49. The luminous means (100) according to at least one of the preceding claims, wherein the substrate (1) is embodied reflectively. 50. The light emitting device (100) according to at least one of the preceding claims, wherein the encapsulation (6) is flexible. 51. The light emitting device (100) according to at least one of the preceding claims, wherein the substrate (1) is flexible. 52. The luminous means (100) according to at least one of the preceding claims, wherein the flexible substrate (1) consists of metal. 53. The light emitting device (100) according to at least one of the preceding claims, wherein the flexible substrate (1) contains at least one of the following materials: aluminum, stainless steel, plastic. 54. The luminous means (100) according to at least one of the preceding claims, wherein the flexible substrate (1) is formed as a film. 55. The light-emitting device (100) according to at least one of the preceding claims, wherein the flexible substrate (1) is configured as a laminate comprising at least one of the first layer (103) and the second layer (104) . 56. The light emitting device (100) according to the preceding claim, wherein the material forming the first layer (103) is different from the material forming the second layer (104). 57. The light emitting device (100) according to at least one of the preceding claims, wherein the substrate (1) comprises at least one first layer formed of plastic and at least one second layer formed of glass. 58. The luminous device (100) according to at least one of the preceding claims, wherein the blades (21) of the louver (22) are used as substrate (1). 59. The luminous means (100) according to at least one of the preceding claims, wherein an adhesive layer (30) is applied to a second main surface (102) of the substrate (1) facing away from the first main surface (101). 60. The light emitting device (100) according to the preceding claim, wherein a detachable protective film (31) is applied on the adhesive layer (30). 61. The luminous device (100) according to at least one of the preceding claims, comprising at least one first color subregion (50) adapted to emit light of a first color, and comprising at least one subregion (50) adapted to emit light of a second color. A second color partition (51) of light of a color, wherein the first color is different from the second color. 62. The lighting device (100) according to at least one of the preceding claims, wherein the first and second color subregions (50, 51 ) are arranged on a common plane. 63. The lighting device (100) according to at least one of the preceding claims, wherein the first and second color subregions (50, 51) are arranged vertically one above the other. 64. The light-emitting device (100) according to at least one of the preceding claims, wherein the first color subregion (50) contains a first organic emitter material and the second color subregion (51) contains a second organic emitter material materials, wherein the first emitter material is different from the second emitter material. 65. The luminous means (100) according to at least one of the preceding claims, having at least one color subregion (50, 51) comprising a color filter. 66. The light-emitting device (100) according to at least one of the preceding claims, wherein said first color subregion (50) comprises first color filter means, said second color subregion (51 ) comprises second color filter means, Wherein the first color filter device is different from the second color filter device. 67. The luminous means (100) as claimed in at least one of the preceding claims, having at least one color subregion (50, 51) comprising a luminescence conversion material (52, 53). 68. The light-emitting device (100) according to at least one of the preceding claims, wherein the first color subregion (50) comprises a first luminescence conversion material (52), and the second color subregion (51) comprises a second luminescence A conversion material (53), wherein the first luminescence conversion material (52) is different from the second luminescence conversion material. 69. The lighting device (100) according to at least one of the preceding claims, having at least one third color subregion suitable for emitting light of a third color, wherein the third color is different from the first and second colors. 70. The light emitting device (100) according to at least one of the preceding claims, having at least one fourth color subregion suitable for emitting light of a fourth color, wherein the fourth color is different from the first, second and third colors . 71. The luminous device (100) according to at least one of the preceding claims, having at least one color subregion suitable for emitting white light. 72. The lighting device (100) according to at least one of the preceding claims, wherein at least the first color subregion and the second color subregion (51 ) are controllable independently of each other. 73. The luminous means (100) according to at least one of the preceding claims, wherein color subdivisions of a homogenous configuration can be controlled jointly. 74. The luminous means (100) according to at least one of the preceding claims, having a control device (11), which is designed to regulate the operating state of the luminous means (100). 75. The light emitting device (100) according to the preceding claim, wherein said control means (11) is arranged on the first main face (101) of the substrate (1). 76. The luminous means (100) according to at least one of the preceding claims, wherein the control device (11) and the organic layer stack (4) are encapsulated in a common encapsulation (6). 77. The lighting device (100) according to at least one of the preceding claims, wherein the control device (11) is designed to control at least two color subregions independently of each other. 78. The lighting device (100) according to at least one of the preceding claims, wherein the control device (11) comprises a pulse width modulation circuit (12). 79. The lighting device (100) according to at least one of the preceding claims, wherein the control device (11) is adjustable by a user. 80. The lighting device (100) according to at least one of the preceding claims, wherein the color of the emitted light can be adjusted by means of the control device (11). 81. The lighting device (100) according to at least one of the preceding claims, wherein the first color subregion and the second color subregion (51 ) are connected to each other in antiparallel. 82. The light emitting device (100) according to at least one of the preceding claims, wherein the color of the light emitted by the light emitting device (100) depends on the current density of the current supplying the light emitting device (100). 83. The lighting device (100) according to the preceding claim, having a control device (11) designed to regulate the current density of the current supplying the lighting device (100). 84. The lighting device (100) according to at least one of the preceding claims, wherein the color of the light emitted by the lighting device (100) depends on the intensity of the current supplying the lighting device (100). 85. The lighting device (100) according to the preceding claim, having a control device (11) designed to regulate the intensity of the current supplying the lighting device (100). 86. The lighting device (100) according to at least one of the preceding claims, wherein the color of the light emitted by the lighting device (100) depends on the duration for which the lighting device (100) is powered. 87. The lighting device (100) according to the preceding claim, having a control device (11) designed to regulate the duration of the power supply of the lighting device (100). 88. The luminous means (100) according to at least one of the preceding claims, having a sensor (65) suitable for determining the chromaticity coordinates and/or the brightness of the light radiated by the luminous means (100) during operation. 89. The lighting device (100) according to the preceding claim, having a control device (11) designed to power the lighting device (100) depending on the measured value determined by the sensor (65). 90. The luminous means (100) according to at least one of the preceding claims, having at least one connection location (70), which is designed for electrical contacting of the luminous means (100). 91. The luminous means (100) according to at least one of the preceding claims, wherein the connection location (70) is arranged on a second main surface (102) of the substrate (1) facing away from the first main surface (101) . 92. The luminous means (100) according to at least one of the preceding claims, wherein the connection location (70) is arranged on a side surface of the substrate (1). 93. The luminous means (100) according to at least one of the preceding claims, wherein at least one connection location (70) is designed as a connection pin (71). 94. The luminous means (100) according to at least one of the preceding claims, wherein at least one connection location (70) is designed as a recess (73). 95. The luminous means (100) according to at least one of the preceding claims, wherein at least one connection point (70) is designed as a connection socket (74). 96. The luminous means (100) according to at least one of the preceding claims, wherein at least one connection location (70) comprises a plurality of connection pins (75a, 75b, 75c). 97. The luminous means (100) according to at least one of the preceding claims, wherein at least one connection location (70) is designed as a connection track (84) extending along a side of the substrate (1). 98. The light-emitting device (100) according to the preceding claim, wherein said connection track (84) extends over at least 80% of the length of the sides. 99. The luminous means (100) according to at least one of the preceding claims, wherein the at least one connecting location (70) is designed for mechanically fixing the luminous means (100). 100. A lighting device (1000) having at least one luminous means (100) according to at least one of the preceding claims. 101. The lighting device (1000) according to the preceding claim, having at least two light emitting devices (100) electrically and mechanically connected to each other. 102. The lighting device (1000) according to at least one of the preceding claims, having a first light emitting device (100) and a second light emitting device (100), wherein the first light emitting device (100) has at least one light emitting device designed to be connected Connection site (70) of a plug (71) arranged on the side of the substrate (1) of the first light-emitting device (100), wherein the connection plug (71) fits into the connection of the second light-emitting device (100) In the region ( 70 ), the connection location is configured as a recess ( 73 ) in the side of the second luminous means ( 100 ). 103. The lighting device (1000) according to the preceding claim, wherein said first and second light emitting device (100) are mechanically connected to each other by means of a connection location (70) by press fit. 104. The lighting device (1000) according to the preceding claim, wherein said first and second light emitting device (100) are mechanically connected to each other by means of a connection location (70) through a press-fit seat. 105. The lighting device (1000) according to the preceding claim, wherein said first and second light emitting means (100) are mechanically connected to each other by means of a connection site (70) by a plug connection. 106. The lighting device (1000) according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the lighting device (1000) are mechanically connected to each other. 107. The lighting device (1000) according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the lighting device (1000) are electrically connected. 108. The lighting device (1000) according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the lighting device (1000) are mechanically and electrically connected. 109. The lighting device (1000) according to at least one of the preceding claims, wherein the support body is designed as a support plate (80). 110. The lighting device (1000) according to at least one of the preceding claims, wherein the carrier is designed as a carrier grid (81). 111. The lighting device (1000) according to at least one of the preceding claims, wherein the carrier is designed as a cable system (83). 112. The lighting device (1000) according to at least one of the preceding claims, wherein the support body is designed as a rod system (83). 113. The lighting device (1000) according to at least one of the preceding claims, wherein at least one luminous means (100) is mechanically connected to the carrier by means of a connection point (70) designed as a connection pin (71) connection and electrical connection. 114. The lighting device (1000) according to at least one of the preceding claims, wherein at least one luminous means (100) is mechanically connected to the support body by means of a connecting point (70) designed as a connecting rail (84). connection and electrical connection. 115. The lighting device (1000) according to at least one of the preceding claims, having a first light emitting device (100) and a second light emitting device (100), wherein the first and the second light emitting device (100) emit in operation Light of different colors. 116. The lighting device (1000) according to at least one of the preceding claims, wherein an optical element (60) comprising a diffusing material is arranged behind the luminous means (100) in the radiation direction. 117. The lighting device (1000) according to at least one of the preceding claims, comprising: - a plurality of light emitting devices (100), wherein said light emitting devices (100) are arranged in an array, and - Control means (11) adapted to control each light emitting device (100) independently of the remaining light emitting devices (100). 118. The lighting device (1000) according to the preceding claim, wherein at least one of said light emitting devices (100) is adapted to emit light of a first color during a first period of time and emit light of a second color during a second period of time of light in which the first color is different from the second color. 119. The lighting device (1000) according to at least one of the preceding claims, wherein the carrier contains a textile material (25, 27). 120. The lighting device (1000) according to at least one of the preceding claims, wherein the support body is designed as a curtain (25). 121. The lighting device (1000) according to at least one of the preceding claims, wherein the carrier is designed as a clothing piece (27). 122. The lighting device (1000) according to at least one of the preceding claims, comprising a light emitting device (100) as a first light source and as a second light source. 123. The lighting device (1000) according to at least one of the preceding claims, wherein the light emitting device (100) emits light of a first color, and the second light source (370) emits a second color different from the first color of light. 124. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the blue spectral region and said second color is in the yellow spectral region. 125. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the yellow spectral region and said second color is in the blue spectral region. 126. The lighting device (1000) according to at least one of the preceding claims, wherein said light emitting device (100) is dimmable. 127. The lighting device (1000) according to at least one of the preceding claims, wherein said second light source (370) is dimmable. 128. The lighting device (1000) according to at least one of the preceding claims, wherein the second light source (370) consists of at least one of the following elements: an incandescent lamp, at least one single light-emitting diode, a light-emitting diode-module, a cold Cathode lamps, fluorescent lamps, Laval lamps, organic light-emitting diodes. 129. The lighting device (1000) according to at least one of the preceding claims, wherein the light emitting device (100) and the second light source are mutually arranged such that the light of the second light source (370) passes through the light emitting device (100) shoot out. 130. The lighting device (1000) according to at least one of the preceding claims, wherein the luminous means (100) is configured as a lampshade. 131. The lighting device (1000) according to at least one of the preceding claims, wherein: - said light emitting device (100) emits light of a first color and the second light source (370) emits light of a second color different from the first color, - at least one of the two light sources is dimmable, and - The luminous means (100) and the second light source are arranged relative to each other such that light from the second light source emerges through the luminous means (100). 132. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the blue spectral region and said second color is in the yellow spectral region. 133. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the yellow spectral region and said second color is in the blue spectral region. 134. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the warm white region of the CIE standard color table and said second color is in the cool white region of the CIE standard color table. 135. The lighting device (1000) according to at least one of the preceding claims, wherein said first color is in the cool white region of the CIE standard color table and said second color is in the warm white region of the CIE standard color table. 136. The lighting device (1000) according to at least one of the preceding claims, wherein the light emitting means (100) and the second light source are designed to be dimmable. 137. The lighting device (1000) according to at least one of the preceding claims, wherein the luminous means (100) is configured as a lampshade. 138. The lighting device (1000) according to at least one of the preceding claims, wherein the radiation-emitting front side of the luminous means (100) and the radiation-emitting front side of the second light source are arranged in a common plane. 139. The lighting device (1000) according to at least one of the preceding claims, wherein an LED module (390) arranged in the radiation-emitting front side of the luminous means (100) is used as the second light source (370). 140. The lighting device (1000) according to the preceding claim, wherein said LED module (390) is arranged centrally within a radiation-emitting front face of said luminous means. 141. An optical display device comprising: - a display element, and - At least two light emitting devices (100) according to at least one of the preceding claims, wherein said light emitting devices (100) constitute a backlight for said display element (90). 142. Optical display device according to the preceding claim, wherein said light emitting devices (100) are electrically and mechanically connected to each other. 143. Optical display device according to at least one of the preceding claims, wherein at least one light emitting device (100) is adapted to emit white light. 144. The optical display device according to at least one of the preceding claims, having a first light emitting device (100) and a second light emitting device (100), wherein the first light emitting device (100) has at least one light emitting device designed to be connected The connection part (70) of the pin (71), the connection part is arranged on the side of the substrate (1) of the first light-emitting device (100), wherein the connection pin (71) is inserted into the second light-emitting device ( 100) in the connection location (70), which is designed as a recess (73) in the side of the second luminous means (100). 145. Optical display device according to the preceding claim, wherein said first and second light emitting means (100) are mechanically connected to each other by means of a connection site (70) by press fitting. 146. Optical display device according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the optical display device are mechanically connected. 147. Optical display device according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the optical display device are electrically connected. 148. Optical display device according to at least one of the preceding claims, comprising a carrier, via which the luminous means (100) of the optical display device are connected mechanically and electrically. 149. Optical display device according to at least one of the preceding claims, wherein the support body is designed as a support plate (80). 150. Optical display device according to at least one of the preceding claims, wherein the carrier is designed as a carrier grid (81). 151. The optical display device according to at least one of the preceding claims, wherein at least one luminous means (100) is mechanically connected to the carrier by means of a connecting point (70) designed as a connecting pin (71) and electrical connection. 152. Optical display device according to at least one of the preceding claims, wherein an optical element (60) comprising a diffusing material is arranged downstream of the luminous means (100) in the radiation direction. 153. Optical display device according to at least one of the preceding claims, wherein the luminous means (100) are arranged in a matrix. 154. An emergency lighting device (395) having a luminous means (100) according to at least one of the preceding claims. 155. An emergency lighting device (395) having a lighting device (1000) according to at least one of the preceding claims. 156. A vehicle interior lighting device (396) having a luminous means (100) according to at least one of the preceding claims. 157. A vehicle interior lighting device (396) having a lighting device (1000) according to at least one of the preceding claims. 158. A furniture component (33) having a luminous means (100) according to at least one of the preceding claims. 159. A furniture element (33) having a lighting device (1000) according to at least one of the preceding claims. 160. A building material with a luminous means (100) according to at least one of the preceding claims. 161. A building material with a lighting device (1000) according to at least one of the preceding claims. 162. Glazing with a luminous means according to at least one of the preceding claims, wherein the luminous means (100) is arranged between two panes of the glazing (20). 163. The glazing as claimed in at least one of the preceding claims, having a main face, parallel to which the shutters (22) are arranged. 164. The glazing as claimed in at least one of the preceding claims, wherein the louver (22) is embodied reflectively. 165. A display with a light emitting device (100) according to at least one of the preceding claims. 166. A display with an illumination device (1000) according to at least one of the preceding claims. 167. A storage furniture comprising - a planar storage element (AM100) having at least one storage surface (AM10) and at least one radiation-emitting part (AM11), said device, in particular a light emitting device (100) according to at least one of the preceding claims, and - At least one holding device (AM7) for holding the storage element (AM100). 168. Storage furniture according to the preceding claim, wherein said radiation emitting part (AM11) comprises at least the following elements: - first and second electrodes (AM3, AM4), - and at least one active area arranged between the first and second electrodes (AM3, AM4). 169. Storage furniture according to the preceding claim, wherein the first and/or second electrodes (AM3, AM4) of the radiation emitting part (AM11) are structured. 170. Storage furniture according to any one of claims 168 or 169, wherein said radiation emitting part (AM11) is an organic light emitting diode having at least one organic layer (AM2). 171. Storage furniture according to any one of the preceding claims, wherein the storage element (AM100) has a holding element (AM9) by means of which the storage element (AM100) can be mounted on a holding device (AM7) on. 172. Storage furniture according to any one of the preceding claims, wherein the storage element (AM100) has at least two electrical contacts (AM31 , AM41 ) for electrically contacting the radiation emitting part (AM11 ). 173. Storage furniture according to the preceding claim, wherein said first and second electrodes (AM3, AM4) are in contact by different electrical contacts (AM31, AM41). 174. Storage furniture according to claim 171, wherein said storage element (AM100) has at least two electrical contacts (AM31, AM41) for electrically contacting a radiation emitting part (AM11), and said holding element ( AM9) contains electrical contacts (AM31, AM41). 175. Storage furniture according to claim 171, wherein the holding device (AM7) has a holder (AM6) on which the storage element (AM100) can be mounted by means of a holding element (AM9) on the holding device (AM7). 176. Storage furniture according to claim 172 or 173, wherein said holding means (AM7) comprises at least two electrical lead contacts (AM8) for electrically contacting a radiation emitting part (AM11 ), and said storage element The electrical contacts (AM31, AM41) of (AM100) are electrically conductively connected to said electrical lead contacts (AM8). 177. Storage furniture according to the preceding claim, wherein said holding device (AM7) has a holder (AM6) on which said storage element (AM100) can be Mounted on a holder (AM7) and said holder (AM6) includes electrical lead contacts (AM8). 178. Storage furniture according to any one of the preceding claims, wherein said holding means (AM7) comprises at least one element selected from the group consisting of: rails, holding angles, supporting arms, beams, columns, furniture walls. 179. Storage furniture according to any one of the preceding claims, wherein said storage element (AM100) is n-gonal, circular or elliptical or a combination thereof, where n is an integer greater than or equal to three. 180. Storage furniture according to the preceding claim, wherein the storage element (AM100) has an angular shape, and the storage element (AM100) is arranged at least on one corner of the holding device (AM7). 181. Storage furniture according to any one of the preceding claims, wherein said radiation emitting part (AM11) has at least one exit surface for electromagnetic radiation, wherein said exit surface is at least one of the outer surfaces of said storage element part. 182. Storage furniture according to the preceding claim, wherein said outer surface is a storage surface (AM10). 183. Storage furniture according to claim 180 or 181, wherein the outer surface is arranged on the side of the storage element facing away from the storage surface (AM10). 184. Storage furniture according to any one of the preceding claims, wherein said storage element (AM100) comprises an upper side, a lower side and lateral sides, and said radiation emitting part is mounted between the upper side, lower side and lateral sides one up. 185. Storage furniture according to any one of claims 167 to 183, wherein said radiation emitting part is integrated into said flat-shaped storage element (AM100). 186. Storage furniture according to any one of the preceding claims, wherein the radiation emitting part is planar. 187. Storage furniture according to any one of the preceding claims, wherein said holding means (AM7) is adapted to hold said storage element (AM100) such that at least a partial area of said storage surface (AM10) is substantially Parallel to the bottom on which the storage element (AM100) can be arranged. 188. Storage furniture according to any one of the preceding claims, wherein said holding means (AM7) is adapted to hold said storage element (AM100) such that at least a partial area of said storage surface (AM10) is substantially Perpendicular to the wall on which the storage furniture can be mounted or fitted. 189. Storage furniture according to any one of the preceding claims, wherein said storage furniture comprises a plurality of storage elements (AM101, AM102). 190. Storage furniture according to the preceding claim, wherein said plurality of storage elements (AM101, AM102) are mutually arranged such that the respective storage surfaces are parallel to each other. 191. The lighting device (1000) according to at least one of the preceding claims, wherein at least two rigid light emitting devices (100) which are not inherently flexible are embedded in a flexible matrix (40). 192. The lighting device (1000) according to the preceding claim, comprising two flexible supports (42, 43) between which a rigid light emitting device (100) and a flexible matrix (40) are arranged s material. 193. The lighting device (1000) according to the preceding claim, wherein one support body (43) is light-transmissive and the other support body (42) consists of a light-impermeable material, in particular a metal film. 194. The lighting device (1000) according to claim 191, wherein the light-transmitting material of the flexible matrix (40) contains particles of at least one of the following materials: luminescence conversion material, color filter material, diffusion material. 195. The lighting device (1000) according to claim 191, wherein said flexible matrix (40) material comprises or is formed from at least one of the following materials: Zeonex, polystyrene, polycarbonate Esters or other plastics which can preferably be processed by injection moulding.

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