JP2008181730A - LIGHT EMITTING DEVICE AND ELECTRONIC DEVICE - Google Patents

Abstract

A light-emitting device capable of improving contrast by suppressing reflection of external light is provided.
A light emitting device 1 (organic EL device) according to the present invention includes a light emitting element EL1 (organic EL element), a light reflecting layer 22 having a light reflecting pattern 22A facing the light emitting element EL1, and the light reflecting device. A light absorbing layer 24 having a light absorbing pattern 24A provided on the opposite side of the layer 22 from the light emitting element EL1 and overlapping the light reflecting pattern 22A in a plane.
[Selection] Figure 1

Description

  The present invention relates to a light emitting device and an electronic apparatus.

  In recent years, self-luminous display devices (light-emitting devices) using light-emitting elements as pixels have been used in various electronic devices such as mobile phones, video cameras, and digital cameras. For this reason, the user has more opportunities to view the display screen not only indoors but also outdoors. At this time, a problem arises when light from the outside enters the display screen. The incident light is reflected on the screen and is visually recognized. Usually, however, light that is much stronger outdoors is incident on the screen and is reflected and enters the user's eyes. As a result, the contrast of the display screen is reduced, making it difficult to see the display.

As an example, consider a case where an organic electroluminescence element (hereinafter, “electroluminescence” is abbreviated as “EL”) is used for a display device. Organic EL elements are capable of high-speed response with low power consumption, and are considered to be easily multi-colored due to the diversity of organic compounds, and thus are expected to be applied to full-color displays and the like. However, it is difficult for current organic EL elements to obtain high luminance while ensuring a long life. For this reason, a decrease in visibility due to the influence of light from the outside is inevitable outdoors. Therefore, various techniques for reducing external light reflection and improving visibility have been conventionally developed (see, for example, Patent Documents 1 to 3).
Japanese Patent Laid-Open No. 8-322138 Japanese Patent Laid-Open No. 9-127858 JP 2005-317271 A

  Patent Documents 1 and 2 disclose a technique of disposing a circularly polarizing plate on the observer side of the organic EL device as a technique for improving the visibility by reducing external light reflection. When the external light transmitted through the circularly polarizing plate is reflected by the metal electrode of the organic EL element, the rotation direction is reversed, and the external light is absorbed when it is incident on the circularly polarizing plate again. For this reason, it has the outstanding external light reflection suppression function which absorbs most of the external light reflected by an organic EL element. However, since about half of the light emitted from the organic EL element is absorbed, there is a problem in that the light emitted from the organic EL element is effectively used.

  Patent Document 3 discloses a technique of disposing a color filter on the observer side of the organic EL element as a technique for effectively removing light from the organic EL element by removing the circularly polarizing plate. According to this configuration, the light emitted from the organic EL element can be extracted by the transmittance of the color filter. After the external light passes through the color filter and is reflected by the metal electrode of the organic EL element, it passes through the color filter again and is extracted to the viewer side. For this reason, it becomes weak by the square of the transmittance of the color filter. In this case, although there is no external light reflection suppression function as much as a circularly polarizing plate, it is excellent in that the light emitted from the organic EL element can be used effectively.

  However, in this type of light emitting device, the reflectance of external light depends on the transmittance of the color filter, and the external light reflection suppression capability and display brightness have a trade-off relationship. Therefore, when trying to reduce the reflection of external light, the light emitted from the organic EL element cannot be used effectively, and there is a concern that it may hinder use in bright outdoors.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a light-emitting device capable of improving contrast by suppressing reflection of external light. It is another object of the present invention to provide an electronic device that can display clearly even in bright outdoors by including such a light emitting device.

  In order to solve the above problems, a light-emitting device of the present invention is provided with a light-emitting element, a light-reflecting layer having a light-reflecting pattern facing the light-emitting element, and the light-reflecting layer on the opposite side of the light-emitting element And a light absorption layer having a light absorption pattern that overlaps the light reflection pattern in a plane. According to this configuration, since the light absorption pattern is provided on the external light incident side (observer side) of the light emitting element, external light reflection is reduced, and visibility is greatly improved. In this case, although the apparent aperture ratio is reduced, the light emitted from the light emitting element is recycled by the light reflection pattern, so that the reduction in luminance due to the provision of the light absorption layer is small. Therefore, a light-emitting device that is bright and highly visible can be provided.

  In the present invention, the light absorption layer is preferably laminated on the surface of the light reflection layer opposite to the light emitting element. According to this configuration, light emitted obliquely from the opening of the light reflection pattern can be prevented from being absorbed by the light absorption pattern, and a bright light emitting device with high light utilization efficiency can be provided.

  In the present invention, it is preferable that the light reflection pattern is provided so as not to overlap the edge of the light emitting element formation region in a planar manner. According to this configuration, the light reflected at the edge of the light emitting element formation region can be effectively extracted outside. For example, if there is a light reflection pattern at the edge of the light emitting element formation region, the light reflected by that portion is emitted from the region of the adjacent light emitting element, which causes color mixing. Further, when a black matrix is formed between adjacent light emitting elements, light reflected by the portion is absorbed by the black matrix and cannot be extracted outside. On the other hand, when the light reflection pattern and the edge of the light emitting element formation area are not overlapped as in the present invention, the light reflected by the portion is effectively extracted to the outside and a bright display is realized. it can.

  In the present invention, it is preferable that the light reflecting layer and the light absorbing layer are provided on the opposite side of the light emitting element from the substrate on which the light emitting element is formed. According to this configuration, the unevenness on the substrate generated when the light reflecting layer and the light absorbing layer are formed does not adversely affect the circuit element or the light emitting element. Therefore, a light-emitting device with high yield and excellent reliability can be provided. For example, when the light reflecting layer and the light absorbing layer are formed on the substrate side with respect to the light emitting element (bottom emission type), unevenness due to the light reflecting layer and the light absorbing layer is formed on the substrate, and the circuit When an element or a light emitting element is formed, a problem such as disconnection may occur. On the other hand, when the light reflecting layer and the light absorbing layer are formed on the side opposite to the substrate with respect to the light emitting element (top emission type), the circuit element and the light emitting element can be formed on a flat surface. A light-emitting device with excellent reliability can be provided.

  In the present invention, it is desirable that a color filter is provided on the side of the light reflecting layer opposite to the light emitting element. According to this configuration, since the color filter can suppress external light reflection, a light-emitting device with better visibility can be provided.

  In the present invention, it is desirable that a black matrix is provided on the opposite side of the light reflecting layer from the light emitting element, and the light absorbing layer is formed of the same material as the black matrix. According to this configuration, the light absorption layer can be formed simultaneously with the black matrix, and the manufacturing process can be simplified.

  In the present invention, the light reflecting layer is preferably provided so as not to overlap the black matrix in a planar manner. According to this configuration, it is possible to prevent the light reflected in the vicinity of the black matrix from being emitted from the region of the adjacent light emitting element. For example, when a light reflection pattern is formed in the black matrix formation region, the light reflected by the portion is emitted from the region of the adjacent light emitting element, which causes color mixing. On the other hand, when the light reflecting layer is arranged so as not to overlap with the black matrix, the light reflected at the boundary between the adjacent light emitting elements is absorbed by the black matrix, so that undesired light is in the region of the adjacent light emitting element. It is not emitted from.

  In the present invention, the light reflecting layer and the light absorbing layer are preferably formed on a substrate different from the substrate on which the light emitting element is formed. According to this configuration, the yield can be improved as compared with the case where the light emitting element, the light reflecting layer, and the light absorbing layer are all formed on one substrate. Further, by forming the light emitting element, the light reflection layer, and the light absorption layer on different substrates, optimum process conditions (heating conditions, etc.) can be set for each. Therefore, a light emitting device with excellent display quality can be provided.

  In the present invention, it is preferable that the light reflection layer and the light absorption layer are formed on the same substrate as the substrate on which the light emitting element is formed. According to this structure, compared with the case where a light emitting element, a light reflection layer, and a light absorption layer are formed and bonded to another substrate, both can be aligned with high accuracy. In addition, the shorter the distance between the light emitting element and the light reflecting layer, the higher the light utilization efficiency. However, when these are formed on the same substrate, the distance between them is the thickness of the insulating film that insulates them (the amount of film formation). ). For this reason, compared with the case where both are formed in another board | substrate and it bonds with an adhesive agent, both distance can be shortened. For example, when two substrates are bonded with an adhesive, the distance between the light emitting element and the light reflecting layer (adhesive thickness) is about 10 μm to several tens of μm. When the light reflecting layer and the light reflecting layer are laminated, the distance between them (the thickness of the insulating film) can be shortened to a distance of about several μm.

  In the present invention, the light emitting element is preferably an organic electroluminescence element. According to this configuration, a light-emitting device capable of high-speed response with high luminance and low power consumption can be provided. In an organic EL element, it is difficult to obtain a high luminance after securing a long life, and a decrease in visibility due to external light is a particular problem. However, in the present invention, light can be recycled by a light reflecting layer. Even if it does not have a large light emission luminance, a bright display can be realized. Therefore, it is possible to realize a high-quality light-emitting device that takes advantage of the organic EL element that is low power consumption and capable of high-speed response.

  An electronic apparatus according to the present invention includes the above-described light emitting device according to the present invention. According to this configuration, it is possible to provide an electronic device that can perform clear display even in bright outdoors.

  Embodiments of the present invention will be described below with reference to the drawings. Such an embodiment shows one aspect of the present invention and does not limit the present invention. In the following embodiments, various shapes, combinations, and the like of the constituent members are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention. Moreover, in the following drawings, in order to make each structure easy to understand, an actual structure and a scale, a number, and the like in each structure are different.

[First Embodiment]
FIG. 1 is a schematic configuration diagram of an organic EL device 1 which is a first embodiment of a light emitting device of the present invention. The organic EL device 1 includes a first substrate 10 and a second substrate 20 that face each other. The first substrate 10 and the second substrate 20 are bonded by an adhesive layer 43. A gap material (not shown) is provided between the first substrate 10 and the second substrate 20, and the gap between the first substrate 10 and the second substrate 20 is held at a constant interval by the gap material. .

  The first substrate 10 has a substrate body 10A made of glass, quartz, plastic or the like as a base. A pixel electrode (first electrode) 14, a partition layer 16, a functional layer 17, a counter electrode (second electrode) 18, and a protective film 19 are provided on the second substrate 20 side of the substrate body 10 </ b> A. The pixel electrode 14, the functional layer 17, and the counter electrode 18 form an organic EL element EL1 as a light emitting element. The organic EL element EL1 forms a sub-pixel area A that is a light emitting area. Sub-pixel areas A are provided in a matrix on the substrate body 10A, and an image display area as a whole is formed by the plurality of sub-pixel areas A.

  Although not shown, a circuit element portion including a circuit element for driving the pixel electrode 14 is provided between the substrate body 10A and the pixel electrode 14. The circuit element portion is provided with a scanning line, a signal line, a common power supply line, a switching TFT, a driving TFT, a storage capacitor, and the like. In the present embodiment, the pixel electrode 14 is an anode and the counter electrode 18 is a cathode. However, the pixel electrode 14 may be a cathode and the counter electrode 18 may be an anode.

  A plurality of sub-pixel regions A are arranged in a matrix on the substrate body 10A. In each sub-pixel area A, a pixel electrode 14 having a rectangular shape in plan view is arranged. The pixel electrode 14 is composed of a laminated film of a highly reflective metal film such as aluminum or silver and a translucent conductive film such as ITO. A partition layer 16 made of an inorganic or organic insulating material is provided between adjacent sub-pixel regions A. The partition wall layer 16 is provided in a lattice shape in plan view along the gap between the pixel electrodes 14, and a part of the pixel electrode 14 is exposed on the bottom surface of the rectangular opening H in the partition wall layer 16. The partition layer 16 is provided so as to partially ride on the outer periphery of the pixel electrode 14. The planar shape of the pixel electrode 14 and the planar shape of the opening H of the partition wall layer 16 can be any shape such as a circle and an oval in addition to the rectangle shown in the figure.

  A functional layer 17 is provided so as to cover the pixel electrode 14 and the partition wall layer 16. The functional layer 17 includes at least one layer including a light emitting layer. As the light emitting layer, a known low molecular light emitting material capable of emitting white fluorescence or phosphorescence can be used. For example, anthracene, pyrene, 8-hydroxyquinoline aluminum, bisstyrylanthracene derivative, tetraphenylbutadiene derivative, A coumarin derivative, an oxadiazole derivative, a distyrylbenzene derivative, a pyrrolopyridine derivative, a perinone derivative, a cyclopentadiene derivative, a thiadiazolopyridine derivative, or a low molecular weight material such as rubrene, quinacridone derivative, phenoxazone derivative, DCM, DCJ, perinone , Perylene derivatives, coumarin derivatives, diazaindacene derivatives, and the like. In addition to the light emitting layer, the functional layer 17 includes layers such as a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer as necessary.

  In the functional layer 17, the portion disposed on the pixel electrode 14 contributes to light emission, and the portion disposed on the partition wall layer 16 does not contribute to light emission. For this reason, a region (light emitting region) where light is emitted from the functional layer 17 is defined by the opening H of the partition wall layer 16.

  A counter electrode 18 is provided to cover the functional layer 17. The counter electrode 18 is formed of a material containing magnesium (Mg), lithium (Li), calcium (Ca) or the like. Preferably, a thin film translucent electrode made of MgAg is preferably employed, but other than this, an MgAgAl electrode, a LiAl electrode, a LiFAl electrode, or the like can also be used. A film in which these metal thin films and a light-transmitting conductive material such as ITO (Indium Tin Oxide) are laminated can be used as the counter electrode 18. The counter electrode 18 is provided on substantially the entire surface of the first substrate 10 so as to cover the sub-pixel regions A arranged in a matrix, and functions as a common electrode common to the pixel electrodes 14.

  A protective film 19 is provided to cover the counter electrode 18. The protective film 19 is provided on substantially the entire surface of the first substrate 10 so as to cover the entire surface of the counter electrode 18 and has a function of protecting the counter electrode 18 (organic EL element EL1) from oxygen and moisture present in the atmosphere. is doing. The protective film 19 is desirably formed of an inorganic compound such as silicon oxynitride in terms of transparency, adhesion, water resistance, and the like.

  The second substrate 20 has a substrate body 20A made of glass, quartz, plastic or the like as a base. A light absorption layer 22, a color filter 21, a first protective film 23, a light reflecting layer 24, and a second protective film 25 are provided on the first substrate 10 side of the substrate body 20A.

  FIG. 2 is an exploded perspective view of the components formed on the substrate body 20A. On the substrate body 20A, a black matrix BM and a light absorption layer 22 having a plurality of light absorption patterns 22A in one sub-pixel region are provided. The black matrix BM and the light absorption layer 22 can be formed of a chromium layer containing chromium oxide, a black resin such as a carbon resin, or the like. The black matrix BM and the light absorption layer 22 are preferably formed of the same material. Thereby, both can be patterned simultaneously.

  The black matrix BM is provided in a lattice shape in plan view along the gap between the sub-pixel regions A. In FIG. 2, the light absorption pattern 22 </ b> A is formed in a stripe shape extending in the short side direction of the sub-pixel region A, but the planar shape of the light absorption pattern 22 </ b> A is not limited to this, A two-dimensionally arranged dot pattern, a pattern composed of a plurality of annular zones, or the like can be applied.

  A color filter 21 is provided so as to cover the light absorption layer 22. The color filter 21 is formed by arranging three primary colors of R (red), G (green), and B (blue) in a predetermined pattern, for example, a stripe arrangement, a delta arrangement, and a mosaic arrangement. In FIG. 2, color filters 21 of three primary colors of R (red), G (green), and B (blue) are alternately arranged along the short side direction of the sub-pixel region A, and the color filters of the same color are sub-pixels. They are arranged along the long side direction of the region A. One color element of the color filter 21 is provided corresponding to one of the sub-pixel areas A which is the minimum unit for forming an image. Then, three color elements corresponding to R, G, and B form one unit to form one pixel.

  A first protective film 23 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the color filter 21 and the black matrix BM. A light reflection layer 24 including a plurality of light reflection patterns 24 </ b> A is provided in one subpixel region so as to cover the first protective film 23. As a material of the light reflection layer 24, a metal material having a high reflectance such as aluminum or silver is used. The light reflection pattern 24A is formed in the same shape as the light absorption pattern 22A, and is disposed so as to overlap the light absorption pattern 22A in a plane. In the example of FIG. 2, it is formed as a stripe pattern extending in the short side direction of the sub-pixel region A. Further, a second protective film 25 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the light reflecting layer 24.

  Returning to FIG. 1, a translucent adhesive layer 43 is provided between the first substrate 10 and the second substrate 20. As the adhesive layer 43, a thermosetting resin, an ultraviolet curable resin or the like is used, and in particular, an epoxy resin which is a kind of thermosetting resin is preferably used. The second substrate 20 is bonded to the first substrate 10 via the adhesive layer 43. The surface of the first substrate 10 on which the organic EL element EL1 is formed is sealed by the adhesive layer 43 and the second substrate 20, and prevents the penetration of water and oxygen to prevent the deterioration of the organic EL element EL1. ing.

  In the organic EL device 1 having the above configuration, a current flows from a circuit element unit (not shown) to the pixel electrode 14, and further a current flows to the counter electrode 18 through the functional layer 17. The functional layer 17 (light emitting layer) emits light according to the amount of current at this time. The light emitted from the functional layer 17 to the counter electrode 18 side is transmitted through the color filter 21 and the substrate body 20A and emitted to the outside, and the light emitted from the functional layer 17 to the substrate body 10A side is emitted from the pixel electrode 14. Is transmitted through the color filter 21 and the substrate main body 20A and is emitted to the outside (top emission type).

  Here, in the organic EL device 1 of the present embodiment, the light reflection pattern 24A and the light absorption pattern 22A are provided on the second substrate 20 side (observer side) of the organic EL element EL1, so that the functional layer 17 emits light. A part of the light is reflected to the substrate body 10A side by the light reflection pattern 24A. However, such light is repeatedly reflected between the light reflection pattern 22A and the pixel electrode 14, and finally emitted outside through the gap between the light reflection pattern 24A and the light absorption pattern 22A. For this reason, most of the light emitted from the functional layer 17 is extracted to the outside, and even if the apparent opening area of the sub-pixel region A is reduced by the light reflection pattern 24A, the reduction can be compensated to some extent. Light can be extracted.

  On the other hand, a part of the light incident on the second substrate 20 from the outside enters the first substrate 10 through the gap between the light absorption pattern 22A and the light reflection pattern 24A, and the other light is incident on the light absorption pattern 22A. Absorbed. The light incident on the first substrate 10 side is repeatedly reflected between the light reflection pattern 24A and the pixel electrode 14, and is emitted to the outside again through the gap between the light reflection pattern 24A and the light absorption pattern 22A. Since it attenuates each time it repeats, external light reflection going out to the observer side is reduced, and visibility is greatly improved.

  For example, the length of the long side direction of the sub-pixel region A is 80 μm, the width of the light absorption pattern 22A and the light reflection pattern 24A is 10 μm, the interval between the adjacent light absorption pattern 22A and the light reflection pattern 24A is 10 μm, and the pixel electrode 14 When the interval between the light reflection patterns 24A is 15 μm, when only the light absorption pattern 22A is arranged, only 50% of the light emitted from the functional layer 17 can be extracted. When the light emitted from the layer 17 is recycled, about 60% of the light can be extracted. That is, light can be extracted effectively by about 20%.

  As described above, according to the organic EL device 1 of the present embodiment, since the light absorption pattern 22A and the color filter 21 are provided on the external light incident side (observer side) of the organic EL element EL1, external light reflection is reduced. Visibility is greatly improved. In this case, the apparent aperture ratio is reduced, but the light emitted from the organic EL element EL1 is recycled by the light reflection pattern 24A, so that the reduction in luminance due to the provision of the light absorption layer 22 is small. Therefore, it is possible to provide an organic EL device that is bright and highly visible even in an external light environment.

  Further, since the light reflection pattern 24A and the light absorption pattern 22A are formed in the same shape, the light reflection pattern 24A has an edge of the sub-pixel region A (formation of the organic EL element EL1) in the long side direction of the sub-pixel region A. The edge of the region does not overlap with the edge of the black matrix BM. For this reason, the light reflected at the edge of the sub-pixel region A can be effectively extracted outside.

  For example, when the light reflection pattern 24A exists at the edge of the sub-pixel area A, the light reflected by the portion is emitted from the adjacent sub-pixel area A, which causes color mixing. In the case of the present embodiment, color filters of the same color are arranged in the long side direction of the sub-pixel region A, so no color mixture occurs, but other color filter arrangements (delta arrangement, mosaic arrangement, etc.) When used, there is a problem of color mixing. Further, when the black matrix BM is formed between the adjacent sub-pixel regions A, the light reflected by the portion is absorbed by the black matrix BM and cannot be extracted outside. On the other hand, when the light reflection pattern 24A and the edge of the sub-pixel region A are arranged so as not to overlap as in the present embodiment, the light reflected by the portion is effectively extracted to the outside. Can be realized.

  In the present embodiment, the first protective film 23 is provided between the light absorption pattern 22A and the light reflection pattern 24A. However, the first protective film 23 is omitted and the light reflection pattern 24A is provided on the light absorption pattern 22A. Direct lamination may be performed. According to this configuration, light obliquely emitted from the opening of the light reflection pattern 24A can be prevented from being absorbed by the light absorption pattern 22A, and a bright organic EL device with high light utilization efficiency can be provided.

  In the present embodiment, the present invention is applied to an organic EL device as an example of a light emitting device. However, the present invention is not limited to an organic EL device, and can be applied to other light emitting devices such as a plasma display panel.

[Second Embodiment]
FIG. 3 is a schematic configuration diagram of an organic EL device 2 which is the second embodiment of the light emitting device of the present invention. The basic configuration of the organic EL device 2 is the same as that of the organic EL device 1 of the first embodiment. The difference is that a light emitting layer for emitting colored light of R (red), G (green), and B (blue) is disposed in the sub-pixel region A of R (red), G (green), and B (blue), respectively. The color filter is omitted. Accordingly, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first substrate 10, a pixel electrode (first electrode) 14, a partition layer 16, a functional layer 17, and a counter electrode (second electrode) 18 are provided on the second substrate 20 side of the substrate body 10 </ b> A. The pixel electrode 14, the functional layer 17, and the counter electrode 18 form an organic EL element EL2 as a light emitting element, and the organic EL element EL2 forms a sub-pixel area A that is a light emitting area. Such sub-pixel areas A are provided in a matrix on the substrate body 10A, and an image display area as a whole is formed by the plurality of sub-pixel areas A.

  A plurality of sub-pixel regions A are arranged in a matrix on the substrate body 10A. In each subpixel region A, a pixel electrode 14 having a rectangular shape in plan view is arranged. The pixel electrode 14 is composed of a laminated film of a highly reflective metal film such as aluminum or silver and a translucent conductive film such as ITO. A partition layer 16 made of an inorganic or organic insulating material is provided between adjacent sub-pixel regions A. The partition wall layer 16 is provided in a lattice shape in plan view along the gap between the pixel electrodes 14, and a part of the pixel electrode 14 is exposed on the bottom surface of the rectangular opening H in the partition wall layer 16.

  A functional layer 17 is provided so as to cover the pixel electrode 14. The functional layer 17 includes at least one layer including a light emitting layer. As the light emitting layer, a known low molecular weight light emitting material capable of emitting red, green, and blue fluorescence or phosphorescence can be used. For example, anthracene, pyrene, 8-hydroxyquinoline aluminum, bisstyrylanthracene derivative, tetraphenylbutadiene derivative, coumarin derivative, oxadiazole derivative, distyrylbenzene derivative, pyrrolopyridine derivative, perinone derivative, cyclopentadiene derivative, thiadiazolopyridine Derivatives or these low-molecular materials can be doped with rubrene, quinacridone derivatives, phenoxazone derivatives, DCM, DCJ, perinone, perylene derivatives, coumarin derivatives, diazaindacene derivatives, and the like.

  As the light emitting layer, a known polymer light emitting material capable of emitting red, green, and blue fluorescence or phosphorescence can also be used. For example, (poly) fluorene derivative (PF), (poly) paraphenylene vinylene derivative (PPV), polyphenylene derivative (PP), polyparaphenylene derivative (PPP), polyvinylcarbazole (PVK), polythiophene derivative, polymethylphenylsilane ( A polysilane such as (PMPS) is preferably used. In addition, these polymer materials include polymer materials such as perylene dyes, coumarin dyes, rhodamine dyes, rubrene, perylene, 9,10-diphenylanthracene, tetraphenylbutadiene, Nile red, coumarin 6, and quinacridone. It can also be used by doping a low molecular weight material such as.

  Only the red light emitting layer, the green light emitting layer, and the blue light emitting layer are disposed in the red subpixel region, the green subpixel region, and the blue subpixel region, respectively. Thus, red, green, and blue color lights are emitted from the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region, respectively. As a method for forming a different light emitting layer for each subpixel region, a method for vacuum-depositing a different low molecular light emitting material for each subpixel region using a vapor deposition mask, a polymer light emission for each subpixel region by an inkjet method, or the like. A method of applying a material can be used. In addition to the light emitting layer, the functional layer 17 includes layers such as a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer as necessary.

  A counter electrode 18 is provided so as to cover the functional layer 17 and the partition wall layer 16. The counter electrode 18 is formed of a material containing magnesium (Mg), lithium (Li), calcium (Ca) or the like. Preferably, a thin film translucent electrode made of MgAg is preferably employed, but other than this, an MgAgAl electrode, a LiAl electrode, a LiFAl electrode, or the like can also be used. A film in which these metal thin films and a light-transmitting conductive material such as ITO (Indium Tin Oxide) are laminated can be used as the counter electrode 18. The counter electrode 18 is provided on substantially the entire surface of the first substrate 10 so as to cover the sub-pixel regions A arranged in a matrix, and functions as a common electrode common to the pixel electrodes 14.

  In the second substrate 20, on the first substrate 10 side of the substrate body 20A, a black matrix BM and a light absorption layer 22 having a plurality of light absorption patterns 22A in one subpixel region are provided. The black matrix BM and the light absorption layer 22 can be formed of a chromium layer containing chromium oxide, a black resin such as a carbon resin, or the like. In FIG. 3, the light absorption pattern 22A is formed in a stripe shape extending in the short side direction of the sub-pixel region A, but the planar shape of the light absorption pattern 22A is not limited to this.

  A first protective film 23 made of a translucent insulating film such as a silicon oxide film is provided so as to cover the light absorption pattern 22A and the black matrix BM. A light reflecting layer 24 having a plurality of light reflecting patterns 24 </ b> A is provided in one sub-pixel region A so as to cover the first protective film 23. As a material of the light reflection layer 24, a metal material having a high reflectance such as aluminum or silver is used. The light reflection pattern 24A is formed in the same shape as the light absorption pattern 22A, and is disposed so as to overlap the light absorption pattern 22A in a plane. In the example of FIG. 3, it is formed as a stripe pattern extending in the short side direction of the sub-pixel region A. Further, a second protective film 25 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the light reflecting layer 24.

  In the organic EL device 2 configured as described above, a current flows from a circuit element unit (not shown) to the pixel electrode 14, and further a current flows to the counter electrode 18 through the functional layer 17. The functional layer 17 (light emitting layer) emits light according to the amount of current at this time. The light emitted from the functional layer 17 to the counter electrode 18 side is transmitted through the substrate body 20A and emitted to the outside, and the light emitted from the functional layer 17 to the substrate body 10A side is reflected by the pixel electrode 14, The light passes through the substrate body 20A and is emitted to the outside (top emission type).

  Here, in the organic EL device 2 of the present embodiment, since the light reflection pattern 24A and the light absorption pattern 22A are provided on the second substrate 20 side (observer side) of the organic EL element EL2, light is emitted from the functional layer 17. A part of the light is reflected to the substrate body 10A side by the light reflection pattern 24A. However, such light is repeatedly reflected between the light reflection pattern 22A and the pixel electrode 14, and finally emitted outside through the gap between the light reflection pattern 24A and the light absorption pattern 22A. For this reason, most of the light emitted from the functional layer 17 is extracted to the outside, and even if the apparent opening area of the sub-pixel region A is reduced by the light reflection pattern 24A, the reduction can be compensated to some extent. Light can be extracted.

  On the other hand, a part of the light incident on the second substrate 20 from the outside enters the first substrate 10 through the gap between the light absorption pattern 22A and the light reflection pattern 24A, and the other light is incident on the light absorption pattern 22A. Absorbed. The light incident on the first substrate 10 side is repeatedly reflected between the light reflection pattern 24A and the pixel electrode 14, and is emitted to the outside again through the gap between the light reflection pattern 24A and the light absorption pattern 22A. Since it attenuates each time it repeats, external light reflection going out to the observer side is reduced, and visibility is greatly improved.

  As described above, according to the organic EL device 2 of the present embodiment, since the light absorption pattern 22A is provided on the external light incident side (observer side) of the organic EL element EL2, the reflection of external light is reduced and visibility is improved. Is greatly improved. In this case, the apparent aperture ratio is reduced, but the light emitted from the organic EL element EL2 is recycled by the light reflection pattern 24A, so that the decrease in luminance due to the provision of the light absorption layer 22 is small. Therefore, it is possible to provide an organic EL device that is bright and highly visible even in an external light environment.

  In the present embodiment, the first protective film 23 is provided between the light absorption pattern 22A and the light reflection pattern 24A. However, the first protective film 23 is omitted and the light reflection pattern 24A is provided on the light absorption pattern 22A. Direct lamination may be performed. According to this configuration, light obliquely emitted from the opening of the light reflection pattern 24A can be prevented from being absorbed by the light absorption pattern 22A, and a bright organic EL device with high light utilization efficiency can be provided.

[Third Embodiment]
FIG. 4 is a schematic configuration diagram of an organic EL device 3 which is the third embodiment of the light emitting device of the present invention. In the organic EL device 3, the configuration on the substrate body 10A side of the protective film 19 is the same as that of the organic EL device 1 of the first embodiment. The difference is that a light reflection layer 51, a black matrix BM, a color filter 53, and a light absorption layer 55 are formed on the protective film 19. Accordingly, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first substrate 10, a pixel electrode (first electrode) 14, a partition layer 16, a functional layer 17, a counter electrode (second electrode) 18 and a protective film 19 are provided on the second substrate 20 side of the substrate body 10 </ b> A. Yes. The pixel electrode 14, the functional layer 17, and the counter electrode 18 form an organic EL element EL3 as a light emitting element, and the organic EL element EL3 forms a sub-pixel area A that is a light emitting area. Such sub-pixel areas A are provided in a matrix on the substrate body 10A, and an image display area as a whole is formed by the plurality of sub-pixel areas A.

  A planarizing film 50 made of a light-transmitting insulating film such as an acrylic resin film is provided so as to cover the protective film 19. The planarization film 50 is provided on substantially the entire surface of the first substrate 10 so as to cover the sub-pixel regions A arranged in a matrix. The planarizing film 50 has a function of planarizing unevenness of the substrate surface formed by the partition walls 16 and the like and protecting the counter electrode 18 (organic EL element EL3) from oxygen and moisture present in the atmosphere together with the protective film 19. is doing. In the case of the present embodiment, the thickness of the insulating film including the protective film 19 and the planarizing film 50 is about 10 μm to 15 μm. This thickness is a reduction in external light reflection and the light utilization efficiency from the organic EL element EL3. It can be changed appropriately according to the balance.

  A light reflecting layer 51 including a plurality of light reflecting patterns 51 </ b> A is provided in one sub-pixel region A so as to cover the planarizing film 50. As a material of the light reflecting layer 51, a metal material having a high reflectance such as aluminum or silver is used. In FIG. 4, the light reflection pattern 51A is formed in a stripe shape extending in the short side direction of the sub-pixel region A. However, the planar shape of the light reflection pattern 51A is not limited to this, and within the sub-pixel region A A two-dimensionally arranged dot pattern, a pattern composed of a plurality of annular zones, or the like can be applied.

  A color filter 53 is provided to cover the light reflecting layer 51. The color filter 53 is formed by arranging three primary colors of R (red), G (green), and B (blue) in a predetermined pattern, for example, a stripe arrangement, a delta arrangement, and a mosaic arrangement. In FIG. 4, color filters 53 of three primary colors of R (red), G (green), and B (blue) are alternately arranged along the short side direction of the sub-pixel region A, and the color filters of the same color are sub-pixels. They are arranged along the long side direction of the region A. One color element of the color filter 53 is provided corresponding to one of the sub-pixel areas A which is the minimum unit for forming an image. Then, three color elements corresponding to R, G, and B form one unit to form one pixel.

  A first protective film 54 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the color filter 53 and the planarizing film 50. Covering the first protective film 54, a black matrix BM and a light absorption layer 55 having a plurality of light absorption patterns 55A in one sub-pixel region A are provided. The black matrix BM and the light absorption layer 55 can be formed of a chromium layer containing chromium oxide, a black resin such as a carbon resin, or the like. The black matrix BM and the light absorption layer 55 are desirably formed of the same material. Thereby, both can be patterned simultaneously.

  The black matrix BM is provided in a lattice shape in plan view along the gap between the sub-pixel regions A. The light absorption pattern 55A is formed in the same shape as the light reflection pattern 51A, and is arranged so as to overlap the light reflection pattern 51A in a plane. In the example of FIG. 4, it is formed as a stripe pattern extending in the short side direction of the sub-pixel region A.

  A second protective film 56 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the black matrix BM and the light absorption layer 55. The second protective film 56 is provided on substantially the entire surface of the first substrate 10, and has a function of protecting the light absorption layer 55, the light reflection layer 51, and the organic EL element EL3 from oxygen and moisture present in the atmosphere. Yes. The second protective film 56 is desirably formed of an inorganic compound such as silicon oxynitride in terms of transparency, adhesion, water resistance, and the like. Further, by covering the surface of the second protective film 56 with a gas barrier film or translucent glass having a thickness of about 100 μm, gas barrier properties and surface protection can be achieved.

  In the organic EL device 3 having the above configuration, a current flows from a circuit element unit (not shown) to the pixel electrode 14, and further a current flows to the counter electrode 18 through the functional layer 17. The functional layer 17 (light emitting layer) emits light according to the amount of current at this time. The light emitted from the functional layer 17 to the counter electrode 18 side is transmitted through the color filter 53 and emitted to the outside, and the light emitted from the functional layer 17 to the substrate body 10A side is reflected by the pixel electrode 14, The light passes through the color filter 21 and is emitted to the outside (top emission type).

  Here, in the organic EL device 3 of the present embodiment, the light reflection pattern 51A and the light absorption pattern 55A are provided on the substrate body 10A side (observer side) of the organic EL element EL3. A part of the light is reflected to the substrate body 10A side by the light reflection pattern 51A. However, such light is repeatedly reflected between the light reflection pattern 51A and the pixel electrode 14, and finally emitted to the outside through the gap between the light reflection pattern 51A and the light absorption pattern 55A. For this reason, most of the light emitted from the functional layer 17 is extracted to the outside, and even if the apparent opening area of the sub-pixel region A is reduced by the light reflection pattern 24A, the reduction can be compensated to some extent. Light can be extracted.

  On the other hand, a part of the light incident on the second substrate 20 from the outside enters the first substrate 10 through the gap between the light absorption pattern 55A and the light reflection pattern 51A, and other light is incident on the light absorption pattern 55A. Absorbed. The light incident on the first substrate 10 side is repeatedly reflected between the light reflection pattern 55A and the pixel electrode 14, and is emitted to the outside again through the gap between the light reflection pattern 55A and the light absorption pattern 51A. Since it attenuates each time it repeats, external light reflection going out to the observer side is reduced, and visibility is greatly improved.

  As described above, according to the organic EL device 3 of the present embodiment, since the light absorption pattern 55A and the color filter 53 are provided on the external light incident side (observer side) of the organic EL element EL3, external light reflection is reduced. Visibility is greatly improved. In this case, although the apparent aperture ratio is reduced, the light emitted from the organic EL element EL3 is recycled by the light reflection pattern 51A, and therefore the luminance is less reduced by providing the light absorption layer 55. Therefore, it is possible to provide an organic EL device that is bright and highly visible even in an external light environment.

  Further, since the organic EL element EL3, the light reflection pattern 51A, the color filter 53, the black matrix BM, and the light absorption pattern 55A are provided on the same substrate, the entire panel can be thinned, and these are formed on a separate substrate and pasted. Compared with the case where it matches, each position alignment can be performed with high precision. In addition, the light utilization efficiency is higher when the distance between the organic EL element EL3 and the light reflection layer 51 is shorter. However, when these are formed on the same substrate, the distance between them is the thickness of the insulating film that insulates both. It can be controlled by (deposition amount of the protective film 19 and the planarizing film 50). For this reason, compared with the case where both are formed in another board | substrate and it bonds with an adhesive agent, both distance can be shortened. For example, when two substrates are bonded with an adhesive layer as in the first embodiment, the distance between the organic EL element and the light reflecting layer (the thickness of the protective film and the adhesive layer) is about 10 μm to several tens of μm. When the organic EL element and the light reflecting layer are stacked on the same substrate, the distance between them (the thickness of the protective film and the planarizing film) can be shortened to a distance of about several μm.

  Further, since the light reflection pattern 51A and the light absorption pattern 55A are formed in the same shape, the light reflection pattern 51A has an edge of the sub-pixel region A (formation of the organic EL element EL3 in the long side direction of the sub-pixel region A). The edge of the region does not overlap with the edge of the black matrix BM. For this reason, the light reflected at the edge of the sub-pixel region A can be effectively extracted outside.

  For example, when the light reflection pattern 51A exists at the edge of the sub-pixel area A, the light reflected by the portion is emitted from the adjacent sub-pixel area A, which causes color mixing. In the case of the present embodiment, color filters of the same color are arranged in the long side direction of the sub-pixel region A, so no color mixture occurs, but other color filter arrangements (delta arrangement, mosaic arrangement, etc.) When used, there is a problem of color mixing. Further, when the black matrix BM is formed between the adjacent sub-pixel regions A, the light reflected by the portion is absorbed by the black matrix BM and cannot be extracted outside. On the other hand, when the light reflection pattern 51A and the edge of the sub-pixel region A are arranged so as not to overlap as in the present embodiment, the light reflected by the portion is effectively extracted to the outside, and thus a bright display Can be realized.

  In the present embodiment, the first protective film 54 is provided between the light absorption pattern 55A and the light reflection pattern 51A. However, the first protection film 54 is omitted and the light absorption pattern 55A is formed on the light reflection pattern 51A. Direct lamination may be performed. According to this configuration, light obliquely emitted from the opening of the light reflection pattern 51A can be prevented from being absorbed by the light absorption pattern 55A, and a bright organic EL device with high light utilization efficiency can be provided.

[Fourth Embodiment]
FIG. 5 is a schematic configuration diagram of an organic EL device 4 which is the fourth embodiment of the light emitting device of the present invention. The basic configuration of the organic EL device 4 is the same as that of the organic EL device 3 of the third embodiment. The difference is that a light emitting layer for emitting colored light of R (red), G (green), and B (blue) is disposed in the sub-pixel region A of R (red), G (green), and B (blue), respectively. The color filter is omitted. Accordingly, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the first substrate 10, a pixel electrode (first electrode) 14, a partition layer 16, a functional layer 17, and a counter electrode (second electrode) 18 are provided on the second substrate 20 side of the substrate body 10 </ b> A. The pixel electrode 14, the functional layer 17, and the counter electrode 18 form an organic EL element EL4 as a light emitting element, and the organic EL element EL4 forms a sub-pixel area A that is a light emitting area. Such sub-pixel areas A are provided in a matrix on the substrate body 10A, and an image display area as a whole is formed by the plurality of sub-pixel areas A.

  A plurality of sub-pixel regions A are arranged in a matrix on the substrate body 10A. In each subpixel region A, a pixel electrode 14 having a rectangular shape in plan view is arranged. The pixel electrode 14 is composed of a laminated film of a highly reflective metal film such as aluminum or silver and a translucent conductive film such as ITO. A partition layer 16 made of an inorganic or organic insulating material is provided between adjacent sub-pixel regions A. The partition wall layer 16 is provided in a lattice shape in plan view along the gap between the pixel electrodes 14, and a part of the pixel electrode 14 is exposed on the bottom surface of the rectangular opening H in the partition wall layer 16.

  A functional layer 17 is provided so as to cover the pixel electrode 14. The functional layer 17 includes at least one layer including a light emitting layer. As the light emitting layer, a known low molecular weight light emitting material capable of emitting red, green, and blue fluorescence or phosphorescence can be used. For example, anthracene, pyrene, 8-hydroxyquinoline aluminum, bisstyrylanthracene derivative, tetraphenylbutadiene derivative, coumarin derivative, oxadiazole derivative, distyrylbenzene derivative, pyrrolopyridine derivative, perinone derivative, cyclopentadiene derivative, thiadiazolopyridine Derivatives or these low-molecular materials can be doped with rubrene, quinacridone derivatives, phenoxazone derivatives, DCM, DCJ, perinone, perylene derivatives, coumarin derivatives, diazaindacene derivatives, and the like.

  As the light emitting layer, a known polymer light emitting material capable of emitting red, green, and blue fluorescence or phosphorescence can also be used. For example, (poly) fluorene derivative (PF), (poly) paraphenylene vinylene derivative (PPV), polyphenylene derivative (PP), polyparaphenylene derivative (PPP), polyvinylcarbazole (PVK), polythiophene derivative, polymethylphenylsilane ( A polysilane such as (PMPS) is preferably used. In addition, these polymer materials include polymer materials such as perylene dyes, coumarin dyes, rhodamine dyes, rubrene, perylene, 9,10-diphenylanthracene, tetraphenylbutadiene, Nile red, coumarin 6, and quinacridone. It can also be used by doping a low molecular weight material such as.

  Only the red light emitting layer, the green light emitting layer, and the blue light emitting layer are disposed in the red subpixel region, the green subpixel region, and the blue subpixel region, respectively. Thus, red, green, and blue color lights are emitted from the red sub-pixel region, the green sub-pixel region, and the blue sub-pixel region, respectively. As a method for forming a different light emitting layer for each subpixel region, a method for vacuum-depositing a different low molecular light emitting material for each subpixel region using a vapor deposition mask, a polymer light emission for each subpixel region by an inkjet method, or the like. A method of applying a material can be used. In addition to the light emitting layer, the functional layer 17 includes layers such as a hole injection layer, a hole transport layer, an electron transport layer, and an electron injection layer as necessary.

  A counter electrode 18 is provided so as to cover the functional layer 17 and the partition wall layer 16. The counter electrode 18 is formed of a material containing magnesium (Mg), lithium (Li), calcium (Ca) or the like. Preferably, a thin film translucent electrode made of MgAg is preferably employed, but other than this, an MgAgAl electrode, a LiAl electrode, a LiFAl electrode, or the like can also be used. A film in which these metal thin films and a light-transmitting conductive material such as ITO (Indium Tin Oxide) are laminated can be used as the counter electrode 18. The counter electrode 18 is provided on substantially the entire surface of the first substrate 10 so as to cover the sub-pixel regions A arranged in a matrix, and functions as a common electrode common to the pixel electrodes 14.

  A protective film 19 made of a translucent insulating film such as a silicon oxide film is provided so as to cover the counter electrode 18. A planarizing film 50 made of a light-transmitting insulating film such as an acrylic resin film is provided so as to cover the protective film 19. Further, a light reflection layer 51 including a plurality of light reflection patterns 51 </ b> A is provided in one subpixel region A so as to cover the planarizing film 50. As a material of the light reflecting layer 51, a metal material having a high reflectance such as aluminum or silver is used. In FIG. 5, the light reflection pattern 51A is formed in a stripe shape extending in the short side direction of the sub-pixel region A, but the planar shape of the light reflection pattern 51A is not limited to this.

  A first protective film 54 made of a light-transmitting insulating film such as a silicon oxide film is provided so as to cover the planarizing film 50. Covering the first protective film 54, a black matrix BM and a light absorption layer 55 having a plurality of light absorption patterns 55A in one sub-pixel region A are provided. The black matrix BM and the light absorption layer 55 can be formed of a chromium layer containing chromium oxide, a black resin such as a carbon resin, or the like.

  The black matrix BM is provided in a lattice shape in plan view along the gap between the sub-pixel regions A. The light absorption pattern 55A is formed in the same shape as the light reflection pattern 51A, and is arranged so as to overlap the light reflection pattern 51A in a plane. In the example of FIG. 5, it is formed as a stripe pattern extending in the short side direction of the sub-pixel region A. Further, a second protective film 56 made of a translucent insulating film such as a silicon oxide film is provided so as to cover the black matrix BM and the light absorption layer 55.

  In the organic EL device 4 having the above configuration, a current flows from a circuit element unit (not shown) to the pixel electrode 14, and further a current flows to the counter electrode 18 through the functional layer 17. The functional layer 17 (light emitting layer) emits light according to the amount of current at this time. The light emitted from the functional layer 17 to the counter electrode 18 side is transmitted through the second protective film 56 and emitted to the outside, and the light emitted from the functional layer 17 to the substrate body 10A side is reflected by the pixel electrode 14. Then, the light passes through the second protective film 56 and is emitted to the outside (top emission type).

  Here, in the organic EL device 4 of the present embodiment, since the light reflection pattern 51A and the light absorption pattern 55A are provided on the substrate body 10A side (observer side) of the organic EL element EL4, light is emitted from the functional layer 17. A part of the light is reflected to the substrate body 10A side by the light reflection pattern 51A. However, such light is repeatedly reflected between the light reflection pattern 51A and the pixel electrode 14, and finally emitted to the outside through the gap between the light reflection pattern 51A and the light absorption pattern 55A. For this reason, most of the light emitted from the functional layer 17 is extracted to the outside, and even if the apparent opening area of the sub-pixel region A is reduced by the light reflection pattern 24A, the reduction can be compensated to some extent. Light can be extracted.

  On the other hand, a part of the light incident on the second substrate 20 from the outside enters the first substrate 10 through the gap between the light absorption pattern 55A and the light reflection pattern 51A, and other light is incident on the light absorption pattern 55A. Absorbed. The light incident on the first substrate 10 side is repeatedly reflected between the light reflection pattern 55A and the pixel electrode 14, and is emitted to the outside again through the gap between the light reflection pattern 55A and the light absorption pattern 51A. Since it attenuates each time it repeats, external light reflection going out to the observer side is reduced, and visibility is greatly improved.

  As described above, according to the organic EL device 4 of the present embodiment, the light absorption pattern 55A is provided on the outside light incident side (observer side) of the organic EL element EL4. Is greatly improved. In this case, the apparent aperture ratio is reduced, but the light emitted from the organic EL element EL4 is recycled by the light reflection pattern 51A, so that the reduction in luminance due to the provision of the light absorption layer 55 is small. Therefore, it is possible to provide an organic EL device that is bright and highly visible even in an external light environment.

  In the present embodiment, the first protective film 54 is provided between the light absorption pattern 55A and the light reflection pattern 51A. However, the first protection film 54 is omitted and the light absorption pattern 55A is formed on the light reflection pattern 51A. Direct lamination may be performed. According to this configuration, light obliquely emitted from the opening of the light reflection pattern 51A can be prevented from being absorbed by the light absorption pattern 55A, and a bright organic EL device with high light utilization efficiency can be provided.

[Electronics]
FIG. 6 is a schematic configuration diagram of a mobile phone 1300 which is an embodiment of the electronic apparatus of the present invention. A cellular phone 1300 includes the organic EL device 1 according to the first embodiment, which is an example of a light emitting device of the present invention, as a small-sized display unit 1301, and includes a plurality of operation buttons 1302, a earpiece 1303, and a mouthpiece 1304. Configured. Accordingly, a mobile phone 1300 including a display unit that is configured by the light-emitting device of the present invention and has excellent display quality can be provided. The light emitting device of the present invention is not limited to the above mobile phone, but is an electronic book, a projector, a personal computer, a digital still camera, a television receiver, a viewfinder type or a monitor direct view type video camera, a car navigation device, a pager, and an electronic notebook. It can be suitably used as an image display means for calculators, word processors, workstations, videophones, POS terminals, devices equipped with touch panels, etc., and with such a configuration, an electronic device having a display unit with excellent display quality Equipment can be provided.

It is a schematic block diagram of the light-emitting device of 1st Embodiment. It is a disassembled perspective view of the opposing board | substrate of the light-emitting device. It is a schematic block diagram of the light-emitting device of 2nd Embodiment. It is a schematic block diagram of the light-emitting device of 3rd Embodiment. It is a schematic block diagram of the light-emitting device of 4th Embodiment. It is a schematic block diagram of the mobile telephone which is an example of an electronic device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2, 3, 4 ... Organic EL apparatus (light-emitting device) 10 ... 1st board | substrate, 20 ... 2nd board | substrate, 21 ... Color filter, 22 ... Light absorption layer, 22A ... Light absorption pattern, 24 ... Light reflection layer 24A ... light reflection pattern, 51 ... light reflection layer, 51A ... light reflection pattern, 53 ... color filter, 55 ... light absorption layer, 55A ... light absorption pattern, 1300 ... mobile phone (electronic device), BM ... black matrix, EL1, EL2, EL3, EL4 ... Organic EL element (light emitting element)

Claims (11)

A light emitting element;
A light reflecting layer having a light reflecting pattern facing the light emitting element;
A light-emitting device, comprising: a light-absorbing layer provided on a side opposite to the light-emitting element of the light-reflecting layer and having a light-absorbing pattern that overlaps the light-reflecting pattern in a planar manner.   The light emitting device according to claim 1, wherein the light absorbing layer is laminated on a surface of the light reflecting layer opposite to the light emitting element.   The light-emitting device according to claim 1, wherein the light reflection pattern is provided so as not to overlap with an edge of a region where the light-emitting element is formed.   The said light reflection layer and the said light absorption layer are provided in the opposite side to the board | substrate with which the said light emitting element was formed with respect to the said light emitting element. Light-emitting device.   The light emitting device according to claim 1, wherein a color filter is provided on a side of the light reflecting layer opposite to the light emitting element. A black matrix is provided on the opposite side of the light reflecting layer from the light emitting element,
The light-emitting device according to claim 1, wherein the light absorption layer is formed of the same material as the black matrix.   The light emitting device according to claim 6, wherein the light reflecting layer is provided so as not to overlap the black matrix in a planar manner.   The light-emitting device according to claim 1, wherein the light reflection layer and the light absorption layer are formed on a substrate different from the substrate on which the light-emitting element is formed.   The light-emitting device according to claim 1, wherein the light reflection layer and the light absorption layer are formed on the same substrate as the substrate on which the light-emitting element is formed.   The light-emitting device according to claim 1, wherein the light-emitting element is an organic electroluminescence element.   An electronic apparatus comprising the light-emitting device according to claim 1.

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