EP1229765A1 - Method of manufacturing an electroluminescent film and its use - Google Patents
Method of manufacturing an electroluminescent film and its use Download PDFInfo
- Publication number
- EP1229765A1 EP1229765A1 EP02290273A EP02290273A EP1229765A1 EP 1229765 A1 EP1229765 A1 EP 1229765A1 EP 02290273 A EP02290273 A EP 02290273A EP 02290273 A EP02290273 A EP 02290273A EP 1229765 A1 EP1229765 A1 EP 1229765A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electroluminescent
- flexible
- deposited
- conductive
- element according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000002985 plastic film Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 4
- 238000000151 deposition Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 22
- 239000004033 plastic Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 241001604129 Polydactylus Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
- H05B33/145—Arrangements of the electroluminescent material
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
Definitions
- the present invention relates to the field of photoluminescent materials, and its applications.
- WO8912376 describes a lamp assembly flexible light emitting comprises a plurality of layers thin each comprising a flexible plastic substrate and at least one electrically conductive layer. We work between two other thin layers a first thin layer emitting light, which includes an electroluminescent layer and a light transmitting conductor (24). The second and third thin layers respectively provide a bar bus and rear electrodes.
- Such devices require the use of a electrically conductive substrate. It is difficult to find support films with both good optical performance (transparency, absence of coloring), and good electrical conductivity.
- WO0072637 relates to a color display electroluminescent comprising a substrate on which are successively formed a fluorescent conversion layer and / or a fluorescent material containing a color filter, an organic layer, a barrier layer and a structure organic electroluminescent.
- the organic layer is made of a thermosetting resin and taking under the effect of ultraviolet, the barrier layer containing silicon.
- Japanese patent application JP10119599 reports to an electroluminescent element presenting a product layered ceramic comprising a substrate, a first electrode effect layer and a first insulating layer, and comprising in at least one of the insulating layers a material dielectric of a specified composition consisting mainly, in molar percentage, from 0.1 to 3% of MgO, from 0.05 to 1.0% of MnO, up to 1% of Y2 03, from 2 to 12% of BaO + CaO and from 2 to 12% SiO2, for a molar percentage 100% BaTiO3.
- the object of the present invention is to remedy to the drawbacks of the devices of the prior art, in offering a flexible element, very low consumption electric, and producing a homogeneous and constant lighting. Another goal is to achieve long lifespans and thin, of the order of 0.5 mm.
- the invention relates first of all to a method for the manufacture of an electroluminescent film characterized in that that a cord is deposited on a flexible transparent substrate in a resistive material surrounding at least one zone, and in this that we deposit at least 7 thicknesses of a electroluminescent material by alternative steps coating and drying, and in that we cover the complex thus prepared by a flexible film.
- the substrate and the backing film are made of insulating plastic.
- the number of layers of material electroluminescent is between 9 and 14.
- a flexible opaque or semi-opaque material between areas emitting.
- the two flexible films are heat sealed around their edges.
- the invention also relates to a system comprising a element according to the invention and in addition a source supplying an alternating current of the order of 450 Hz.
- the element consists of a flexible substrate (1) or flexible, for example a polyprolylene film. So substrate (1), a conductive bead (2, 3) is delimited an area (4, 5) on which 9 layers of a electroluminescent material.
- the whole is subject to a rolling operation when the two exterior films are assembled. All has a thickness of the order of 0.2 to 0.6 mm.
- the conducting cords are connected, at each of their ends, to a source of alternating current at 450 Hz (or more generally between 50 and 2000 Hz), at low voltage, for example 3 volts.
- the electrical power required is of the order of 10 mW per cm 2 .
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Description
La présente invention concerne le domaine des matériaux photoluminescent, et ses applications.The present invention relates to the field of photoluminescent materials, and its applications.
On connaít dans l'état de la technique le brevet PCT WO9748254 décrit un dispositif utilisant des électrodes (10) se présentant sous forme de films plastiques électroconducteurs, translucides et souples pour la fabrication de lampes électroluminescentes, de panneaux lumineux et autres dispositifs d'affichage analogues. Pour fabriquer ces électrodes, on forme des couches d'oxyde conducteur sur les surfaces d'un film plastique perforé ou d'une toile plastique. Les couches d'oxyde conducteur, par exemple d'oxyde stannique d'indium, communiquent par l'intermédiaire des perforations ou des espaces de l'armure de manière à établir une communication électrique intégrale entre les faces opposées de l'électrode. Un autre procédé consiste à former une électrode contenant une bande conductrice à partir de bandes de plastique translucides qui sont pré-enduites avec l'oxyde conducteur.We know in the prior art the patent PCT WO9748254 describes a device using electrodes (10) in the form of electrically conductive plastic films, translucent and flexible for the manufacture of electroluminescent lamps, light panels and others analog display devices. To make these electrodes, conductive oxide layers are formed on the surfaces of perforated plastic film or plastic canvas. The layers of conductive oxide, for example stannic oxide indium, communicate through the perforations or armor spaces so as to establish communication integral electric between the opposite faces of the electrode. Another method is to form an electrode containing a conductive strip from translucent plastic strips which are pre-coated with the conductive oxide.
Le brevet WO8912376 décrit un ensemble à lampe électroluminescente flexible comprend une pluralité de couches minces comprenant chacune un substrat en plastique souple et au moins une couche électroconductrice. On agence entre deux autres couches minces une première couche mince émettant de la lumière, laquelle comprend une couche électroluminescente et un conducteur (24) transmetteur de lumière. Les deuxième et troisieme couches minces fournissent respectivement une barre bus et des électrodes arrière.WO8912376 describes a lamp assembly flexible light emitting comprises a plurality of layers thin each comprising a flexible plastic substrate and at least one electrically conductive layer. We work between two other thin layers a first thin layer emitting light, which includes an electroluminescent layer and a light transmitting conductor (24). The second and third thin layers respectively provide a bar bus and rear electrodes.
De tels dispositifs nécessitent l'utilisation d'un substrat conducteur électriquement. Il est difficile de trouver des films support présentant à la fois de bonnes performances optiques (transparence, absence de coloration), et une bonne conductivité électrique. Such devices require the use of a electrically conductive substrate. It is difficult to find support films with both good optical performance (transparency, absence of coloring), and good electrical conductivity.
Le brevet WO0072637 porte sur un affichage couleur électroluminescent comprenant un substrat sur lequel sont formés successivement une couche de conversion fluorescente et/ou un matériau fluorescent renfermant un filtre couleur, une couche organique, une couche barrière et une structure électroluminescente organique. La couche organique est constituée d'une résine thermodurcissable et prenant sous l'effet des ultraviolets, la couche barrière renfermant du silicium.WO0072637 relates to a color display electroluminescent comprising a substrate on which are successively formed a fluorescent conversion layer and / or a fluorescent material containing a color filter, an organic layer, a barrier layer and a structure organic electroluminescent. The organic layer is made of a thermosetting resin and taking under the effect of ultraviolet, the barrier layer containing silicon.
La demande de brevet japonaise JP10119599 rapporte à un élément électroluminescent présentant un produit céramique en couches comprenant un substrat, une première couche à effet d'électrode et une première couche isolante, et comportant dans au moins une des couches isolantes une matière diélectrique d'une composition spécifiée constituée principalement, en pourcentage molaire, de 0,1 à 3 % de MgO, de 0,05 à 1,0 % de MnO, jusqu'à 1 % de Y2 03 , de 2 à 12 % de BaO + CaO et de 2 à 12 % de SiO2, pour un pourcentage molaire de 100 % de BaTiO3.Japanese patent application JP10119599 reports to an electroluminescent element presenting a product layered ceramic comprising a substrate, a first electrode effect layer and a first insulating layer, and comprising in at least one of the insulating layers a material dielectric of a specified composition consisting mainly, in molar percentage, from 0.1 to 3% of MgO, from 0.05 to 1.0% of MnO, up to 1% of Y2 03, from 2 to 12% of BaO + CaO and from 2 to 12% SiO2, for a molar percentage 100% BaTiO3.
Ces différentes solutions nécessitent une alimentation haute tension peu adaptée à des applications de sécurité ou d'affichage. Par ailleurs, elles ne permettent pas d'obtenir une luminescence régulière et homogène.These different solutions require high voltage power supply not very suitable for security or display. Furthermore, they do not allow to obtain a regular and homogeneous luminescence.
L'objet de la présente invention est de remédier aux inconvénients des dispositifs de l'art antérieur, en proposant un élément flexible, de très faible consommation électrique, et produisant un éclairage homogène et constant. Un autre objectif est d'atteindre de grandes durées de vie et de faibles épaisseurs, de l'ordre de 0,5 mm.The object of the present invention is to remedy to the drawbacks of the devices of the prior art, in offering a flexible element, very low consumption electric, and producing a homogeneous and constant lighting. Another goal is to achieve long lifespans and thin, of the order of 0.5 mm.
L'invention concerne tout d'abord un procédé pour la fabrication d'un film électroluminescent caractérisé en ce que l'on dépose sur un substrat transparent souple un cordon en un matériau résistif entourant au moins une zone, et en ce que l'on procède au dépôt d'au moins 7 épaisseurs d'un matériau électroluminescent par des étapes alternatives d'enduction et de séchage, et en ce que l'on recouvre le complexe ainsi préparé par un film souple. Le substrat et le film dorsal sont constitués en une matière plastique isolante.The invention relates first of all to a method for the manufacture of an electroluminescent film characterized in that that a cord is deposited on a flexible transparent substrate in a resistive material surrounding at least one zone, and in this that we deposit at least 7 thicknesses of a electroluminescent material by alternative steps coating and drying, and in that we cover the complex thus prepared by a flexible film. The substrate and the backing film are made of insulating plastic.
De préférence, le nombre de couches de matériau électroluminescent est compris entre 9 et 14.Preferably, the number of layers of material electroluminescent is between 9 and 14.
Selon un mode de réalisation préféré, on dépose un matériau souple opaque ou semi-opaque entre les zones électroluminescentes.According to a preferred embodiment, a flexible opaque or semi-opaque material between areas emitting.
L'invention concerne surtout un élément électroluminescent caractérisé en ce qu'il est constitué par un film transparent en matière plastique sur lequel est déposé au moins un cordon en un matériau résistif délimitant une zone sur laquelle sont déposées au moins 7 couches de matériau électroluminescent, l'ensemble étant revêtu d'un film souple formant la face arrière, le ou les cordons conducteurs étant munis d'un moyen de raccordement électrique. Le matériau résistif est par exemple constitué par une résine chargée de poudre d'aluminium.The invention relates above all to an element electroluminescent characterized in that it consists of a transparent plastic film on which is deposited at least one bead of a resistive material delimiting an area on which are deposited at least 7 layers of material electroluminescent, the whole being coated with a flexible film forming the rear face, the conductive cord (s) being provided with an electrical connection means. The material resistive consists for example of a resin charged with aluminum powder.
Avantageusement, les deux films souples sont thermosoudés sur leur pourtour.Advantageously, the two flexible films are heat sealed around their edges.
L'invention concerne aussi un système comprenant un élément conforme à l'invention et en outre une source d'alimentation délivrant un courant alternatif de l'ordre de 450 Hz.The invention also relates to a system comprising a element according to the invention and in addition a source supplying an alternating current of the order of 450 Hz.
Avantageusement, le système comprend une pluralité de cordons conducteurs délimitant chacun une zone fermée, la surface comprise entre lesdites zones étant opaque, le système comprenant en outre un moyen d'alimentation électrique à haute fréquence.Advantageously, the system comprises a plurality conductive cords each delimiting a closed area, the surface lying between said zones being opaque, the system further comprising a high power supply means frequency.
Selon une première application, l'invention concerne un système de sécurité constitué par au moins un élément conforme à l'invention, et comprenant une pluralité de cordons conducteurs délimitant chacun une zone fermée, le système comprenant en outre un moyen d'alimentation électrique formé par un boítier contenant au moins une batterie, et un convertisseur AC/DC à haute fréquence dont la sortie est reliée aux deux extrémités de chacun des cordons conducteurs.According to a first application, the invention relates to a security system consisting of at least one element according to the invention, and comprising a plurality of conductive cords each delimiting a closed area, the system further comprising power supply means formed by a housing containing at least one battery, and a high frequency AC / DC converter with output connected at the two ends of each of the conductive cords.
Selon une deuxième application, l'invention concerne un système d'éclairage constitué par au moins un élément conforme à l'invention, et comprenant une pluralité de cordons conducteurs délimitant chacun une zone fermée, le système comprenant en outre un moyen d'alimentation électrique formé par un boítier contenant au moins une batterie, et un convertisseur AC/DC à haute fréquence dont la sortie est reliée aux deux extrémités de chacun des cordons conducteurs.According to a second application, the invention relates to a lighting system consisting of at least one element according to the invention, and comprising a plurality of conductive cords each delimiting a closed area, the system further comprising power supply means formed by a housing containing at least one battery, and a high frequency AC / DC converter with output connected at the two ends of each of the conductive cords.
Selon une troisième variante, l'invention concerne un vêtement caractérisé en ce qu'il est comporte au moins un élément conforme l'invention, comprenant une pluralité de cordons conducteurs délimitant chacun une zone fermée, le système comprenant en outre un moyen d'alimentation électrique formé par un boítier contenant au moins une batterie, et un convertisseur AC/DC à haute fréquence dont la sortie est reliée aux deux extrémités de chacun des cordons conducteurs.According to a third variant, the invention relates a garment characterized in that it comprises at least one element according to the invention, comprising a plurality of conductive cords each delimiting a closed area, the system further comprising power supply means formed by a housing containing at least one battery, and a high frequency AC / DC converter with output connected at the two ends of each of the conductive cords.
L'invention sera mieux décrite à la lecture de la description qui suit, se référant aux dessins annexés où :
- la figure 1 représente une vue de dessus d'un élément selon l'invention ;
- la figure 2 représente une vue en coupe d'un tel élément.
- Figure 1 shows a top view of an element according to the invention;
- Figure 2 shows a sectional view of such an element.
L'élément est constitué par un substrat (1) souple ou flexible, par exemple un film en polyprolylène. Sur ce substrat (1), on dépose un cordon conducteur (2, 3) délimitant une zone (4, 5) sur laquelle sont déposées 9 couches d'un matériau électroluminescent.The element consists of a flexible substrate (1) or flexible, for example a polyprolylene film. So substrate (1), a conductive bead (2, 3) is delimited an area (4, 5) on which 9 layers of a electroluminescent material.
Le cordon conducteur peut être réalisé par une pellicule conductrice métallique, par une encre métallique, ou encore par une matrice chargée de poudres métalliques. The conductive cord can be made by a metallic conductive film, with metallic ink, or again by a matrix loaded with metallic powders.
Dans les zones délimitées par chaque cordon, on dépose par enduction une première couche (7) de matériau électroluminescent, puis on procède au séchage, puis on répète l'opération en déposant sur la couche séchée un nouvelle couche de matériau électroluminescent, que l'on fait sécher, et ainsi de suite jusqu'à la dernière couche.In the areas delimited by each cord, we depositing by coating a first layer (7) of material electroluminescent, then we proceed to drying, then we repeat the operation by depositing on the dried layer a new layer of electroluminescent material, which is dried, and so on until the last layer.
Entre les cordons, on peut déposer une couche pigmentée colorée.Between the cords, we can deposit a layer pigmented colored.
On recouvre ensuite l'ensemble ainsi préparé par un film souple ou flexible (8) scellé par thermosoudage avec le premier film (1). Le film (8) est opaque et forme la face arrière.The whole thus prepared is then covered with a flexible or flexible film (8) sealed by heat sealing with the first film (1). The film (8) is opaque and forms the face back.
L'ensemble fait l'objet d'une opération de laminage lorsque les deux films extérieurs sont assemblés. L'ensemble présente une épaisseur de l'ordre de 0,2 à 0,6 mm.The whole is subject to a rolling operation when the two exterior films are assembled. All has a thickness of the order of 0.2 to 0.6 mm.
Les cordons conducteurs sont connectés, à chacune de leur extrémité, à une source de courant alternatif à 450 Hz (ou plus largement entre 50 et 2000 Hz), à basse tension, par exemple 3 volts. La puissance électrique requise est de l'ordre de 10 mW par cm2.The conducting cords are connected, at each of their ends, to a source of alternating current at 450 Hz (or more generally between 50 and 2000 Hz), at low voltage, for example 3 volts. The electrical power required is of the order of 10 mW per cm 2 .
Les applications de tels éléments sont diverses :
- enseigne publicitaires
- élément décoratifs
- source d'éclairage, notamment pour la rétroprojection d'écrans à cristaux liquides
- vêtement de sécurité, tel qu'une ceinture ou une veste.
- advertising sign
- decorative element
- light source, in particular for rear projection of liquid crystal screens
- safety clothing, such as a belt or jacket.
Claims (10)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0101512 | 2001-02-05 | ||
| FR0101512A FR2820600B1 (en) | 2001-02-05 | 2001-02-05 | PROCESS FOR THE MANUFACTURE OF AN ELECTROLUMINESCENT FILM AND APPLICATION OF SUCH A FILM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1229765A1 true EP1229765A1 (en) | 2002-08-07 |
Family
ID=8859614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02290273A Withdrawn EP1229765A1 (en) | 2001-02-05 | 2002-02-05 | Method of manufacturing an electroluminescent film and its use |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20030030383A1 (en) |
| EP (1) | EP1229765A1 (en) |
| FR (1) | FR2820600B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006057653A1 (en) * | 2006-12-07 | 2008-06-26 | Lyttron Technology Gmbh | EL element containing a semitransparent metal foil and manufacturing method and application |
| EP2227512A1 (en) | 2007-12-18 | 2010-09-15 | Lumimove, Inc., Dba Crosslink | Flexible electroluminescent devices and systems |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123230A1 (en) * | 1990-07-18 | 1992-01-23 | Planar Int Oy | PHOSPHORIC LAYER OF AN ELECTROLUMINESCENT COMPONENT |
| US5643829A (en) * | 1993-12-15 | 1997-07-01 | Goldstar Electron Co., Ltd. | Method for the fabrication of multilayer electroluminescence device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991005660A1 (en) * | 1989-10-19 | 1991-05-02 | Avery International Corporation | Process for manufacturing plastic siding panels with outdoor weatherable embossed surfaces |
| US5607789A (en) * | 1995-01-23 | 1997-03-04 | Duracell Inc. | Light transparent multilayer moisture barrier for electrochemical cell tester and cell employing same |
| US5856029A (en) * | 1996-05-30 | 1999-01-05 | E.L. Specialists, Inc. | Electroluminescent system in monolithic structure |
| US20010053082A1 (en) * | 1999-12-22 | 2001-12-20 | Makarand H. Chipalkatti | Electroluminescent vehicle lamp |
| US6638205B1 (en) * | 2000-11-17 | 2003-10-28 | Mds (Canada) Inc. | Radioactive medical device for radiation therapy |
-
2001
- 2001-02-05 FR FR0101512A patent/FR2820600B1/en not_active Expired - Fee Related
-
2002
- 2002-02-05 EP EP02290273A patent/EP1229765A1/en not_active Withdrawn
- 2002-02-05 US US10/068,620 patent/US20030030383A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123230A1 (en) * | 1990-07-18 | 1992-01-23 | Planar Int Oy | PHOSPHORIC LAYER OF AN ELECTROLUMINESCENT COMPONENT |
| US5643829A (en) * | 1993-12-15 | 1997-07-01 | Goldstar Electron Co., Ltd. | Method for the fabrication of multilayer electroluminescence device |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2820600B1 (en) | 2003-05-02 |
| US20030030383A1 (en) | 2003-02-13 |
| FR2820600A1 (en) | 2002-08-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10921656B2 (en) | Light control module | |
| US9299887B2 (en) | Ultra-thin printed LED layer removed from substrate | |
| EP0906714B1 (en) | Electroluminescent system in monolithic structure | |
| US6441551B1 (en) | Electroluminescent device and apparatus | |
| EP2102845A1 (en) | Color tunable oled illumination display and method for controlled display illumination | |
| WO2008150668A4 (en) | Self illuminating electro wetting display | |
| EP2104931A1 (en) | Display panel | |
| TW200520606A (en) | Lighting device and display device incorporating the same | |
| Gahlmann et al. | Bifacial color-tunable electroluminescent devices | |
| US6479941B1 (en) | Electroluminescent device and method for the production of the same | |
| JPH10335064A (en) | Electroluminescent element and its manufacture | |
| EP0998836B1 (en) | Electroluminescent device and apparatus | |
| EP1229765A1 (en) | Method of manufacturing an electroluminescent film and its use | |
| EP1132981A3 (en) | Organic el display apparatus | |
| AU750438B2 (en) | Electroluminescent device and method for the production of the same | |
| KR100786916B1 (en) | Dimensionally stable electroluminescent lamp without substrate | |
| JP2000208275A (en) | Electroluminescent element and manufacture thereof | |
| RU2381637C1 (en) | Method of making luminescent panel | |
| US7872416B2 (en) | Electroluminescent display | |
| JPS6243333Y2 (en) | ||
| US20060255717A1 (en) | Polychromatic electroluminescent element and method for the production thereof | |
| KR100872163B1 (en) | Polymer organic light emitting film with planar double layered structure | |
| US20050157483A1 (en) | Lenticular medium with electro-luminescent backlighting | |
| CN2456258Y (en) | electroluminescent panel | |
| KR20030089618A (en) | Self light-emitting flexible sheet used for making signboards and method for manufacturing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
| 17P | Request for examination filed |
Effective date: 20030207 |
|
| AKX | Designation fees paid |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
| 17Q | First examination report despatched |
Effective date: 20050128 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: AMOUYAL, ANDRE |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20060901 |