JP4924246B2 - Area light emitting organic EL display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an area light-emitting organic EL panel with a pattern layer capable of restraining unnecessary vision caused by difference of reflection coefficients or hues between constituent electrodes, sub electrodes and an organic EL layer and the surroundings, and capable of solving a problem that the pattern layer gets inconspicuous affected by colors of a layer (a second support layer side) below the pattern layer, especially, in case the pattern layer is arranged over a whole surface of the panel at a light-extraction side. <P>SOLUTION: A pattern layer is arranged on a part of or a whole face of the panel outside a first support body, and semi-permeable semi-reflective film is arranged between the first support body and the pattern layer. A color layer is arranged at a second support body side of a second electrode and at either side of the second support body, or the second support body itself is colored. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a simple area emission type organic EL display panel used for POP (Point Of Purchase advertising) or the like.

  In recent years, various types of display panels have been developed along with the reduction in size and size of display devices. As a display panel that stably displays individual characters and designs with high brightness, POP and the like are light-emitting organic types. EL display panels have come to be used in terms of merits such as being a solid element and self-luminous.

A display device used for an organic EL display panel is also called an organic EL display device, and an organic EL element (also referred to as an organic electroluminescence element) using an organic EL layer using an organic compound as a fluorescent material is used as a light emitting element. is there.
In the organic EL element, holes and electrons injected from two opposing electrodes are combined in the light emitting layer, and the fluorescent material in the light emitting layer is excited by the energy to emit light of a color corresponding to the fluorescent material. The device is self-luminous and has high visibility, and since it is a complete solid-state device, it has excellent characteristics such as impact resistance. However, it is particularly bright even at a low voltage of less than 10 V applied. There are advantages such as high light emission efficiency such as realization of light emission, light emission with a simple element structure, high brightness and long life.
In addition, the organic EL element is a laminated structure in which a hole transport layer, a light emitting layer, and an electron injection layer are mainly formed between an anode and a cathode, and each layer can be formed with a thickness of nanometer unit. There is an advantage that it is easy to reduce the thickness and weight.
Furthermore, each of these layers can be manufactured by applying a coating solution in which a polymer material is dissolved, so that it is possible to apply a manufacturing method that applies a printing method to paper or a manufacturing method that applies an ink jet method. There is also.

An organic EL display device as a display device used for the organic EL display panel is usually formed by laminating a first electrode, an organic EL layer, and a second electrode in this order on a base material, and the first A transparent first support is disposed on the outer side of the electrode side, a second support is disposed on the outer side of the second electrode side, and a predetermined one or more of the first electrode and the second electrode are used. The area selectively emits light, and the first support side is set as a light emission extraction side (also referred to as an observer side).
For example, in a configuration as shown in FIG. 11, a bottom emission type area light emitting organic EL in which the second electrode 25 side is a cathode and the first support 11 side is a light emission extraction side (also referred to as an observer side). A display panel is mentioned.
Note that the EL layer is an electroluminescence layer, and here means a layer configuration of one or more layers for contributing to light emission between electrodes, an organic light emitter layer is essential, and an organic light emitter (organic fluorescent light emission). A second form consisting of an organic light emitter layer, a positive hole transport layer on the anode side, and an electron transport layer on the cathode side. The organic light emitting layer having the properties of the hole transport layer and the electron transport layer on the cathode side are the third embodiment, the organic light emitter layer having the properties of the electron transport layer, and the holes on the anode side. The 4th form which consists of a transport layer is mentioned.
For example, as an area light-emitting organic EL display panel, a pattern in which an insulating layer is patterned and the entire light-emitting area emits light uniformly, or an organic EL is emitted with an active matrix or a passive matrix, and a gray scale using a complex circuit is used. Some types are controlling.
About the type which light-emits uniformly the whole light emission area, Unexamined-Japanese-Patent No. 2004-111158 (patent document 1) and Unexamined-Japanese-Patent No. 2002-231446 (patent document 2) have description.
JP 2004-111158 A JP 2002-231446 A

In an organic EL display device used for such an area light emission type organic EL display panel, for example, as shown in FIG. 11, the second electrode 25 side is a cathode, and the first support 11 side is a light emission extraction side ( In the case of the bottom emission type, the second electrode (cathode) 25 and the auxiliary electrode 27 that are formed are metal materials having high reflectivity. Therefore, the reflectivity is outside the formation region. It is easy to see because there is a big difference, and since the color is tinged with a metallic luster color, it is easy to see compared with the surroundings where it is not formed, and also in the organic EL layer 40 that constitutes it However, since it is slightly tinged with color, there is a problem that it is easier to visually recognize than the region other than the region where the organic EL layer 40 is formed.
For this reason, for example, when an organic EL display device is used as a poster medium by enlarging a selection unit area (also referred to as a pixel) for selecting light emission, the eye catching effect is inferior due to the above-described problems.
On the other hand, the inventor of the present application first laminated the transparent first support, the first electrode, the organic EL layer, the second electrode, and the second support in this order, and the first A patterned insulating layer for determining the light emitting region is laminated between the first electrode and the second electrode with a thickness capable of preventing light emission at the time of light emission so as to cover the non-light emitting region. 1 is a light-emitting organic EL display panel in which a support side of 1 is a light emission extraction side (also referred to as an observer side), which is one or more of the second electrode, auxiliary electrode, and organic EL layer, and their surroundings In order to suppress the visual recognition due to the difference in reflectance and the difference in hue, the visual suppression layer made of a light-shielding layer is a non-light emitting region, and the region where any of the organic EL layer and the second electrode is not laminated Is arranged on the side opposite to the light emitting side of the first support so as to shield The machine EL display panel, has proposed. (Japanese Patent Application No. 2007-91159)
Japanese Patent Application No. 2007-91159

  However, in the case where the pattern layer is disposed on the entire surface of the panel on the light emission extraction side of the light emitting organic EL display panel of this form and on the side opposite to the light emission side of the visual suppression layer (observer side) There is a problem that the layer becomes inconspicuous due to the color of the lower layer (second support side) than the pattern layer, and a problem that the edge of the light shielding layer opening is conspicuous.

As described above, in recent years, simple light-emitting organic EL display panels have been used for POPs and the like because of the merit of solid-state self-light emission.
In such a case, at least a transparent first support, first electrode, organic EL layer, second electrode, and second support are laminated in this order, and the first electrode and the second electrode are stacked in this order. A light-emitting type in which a light-emitting region is opened between electrodes and a partitioned insulating layer is formed so as to cover a non-light-emitting region, and the first support side is set as a light emission extraction side (also referred to as an observer side). In a light emitting organic EL display panel in which a pattern layer is disposed on the entire surface of the panel on the light emission extraction side (also referred to as an observer side), the pattern layer is lower than the pattern layer (second The problem of being inconspicuous by being influenced by the color of the support side) was demanded.
Further, here, the visual suppression layer made of the light shielding layer is used to extract light emitted from the first electrode so as to shield the non-light emitting region and the region where any of the organic EL layer and the second electrode is not laminated. There is a need to deal with the problem that the edge of the opening of the light shielding layer is noticeable when it is disposed on the side (also referred to as the observer side) (see Japanese Patent Application No. 2007-91159).
The present invention corresponds to these, and at least a transparent first support, a first electrode, an organic EL layer, a second electrode, and a second support are stacked in this order, and the first support A light-emitting region is opened between the electrode and the second electrode, a partitioned insulating layer is formed so as to cover the non-light-emitting region, and the first support side is referred to as the light emission extraction side (also referred to as the observer side). A light-emitting organic EL display panel, and a light-emitting organic EL display panel in which a picture layer is disposed on the entire surface of the light-emitting side (also referred to as an observer side), electrodes and auxiliary electrodes It is possible to suppress unnecessary visual recognition due to the difference in reflectance and color between the organic EL layer and the surroundings, and the pattern layer is lower than the pattern layer (second support side). It can solve the problem of being inconspicuous by the color of the light emitting type It is intended to provide an opportunity EL display panel.
At the same time, the light-inhibiting layer made of a light-shielding layer is provided on the light emission side from the first electrode so as to shield the non-light-emitting region and the region where any of the organic EL layer and the second electrode is not laminated. Provided is a light-emitting organic EL display panel that can solve the problem that the edge of the light shielding layer opening is noticeable when it is disposed (also referred to as the observer side) (see Japanese Patent Application No. 2007-91159). It is what.

In the light-emitting organic EL display panel of the present invention, at least a transparent first support, a first electrode, an organic EL layer, a second electrode, and a second support are stacked in this order. A light-emitting region is opened between the first electrode and the second electrode, a partitioned insulating layer is formed so as to cover the non-light-emitting region, and the first support side is referred to as the light emission extraction side (also referred to as the observer side). The light-emitting organic EL display panel is a light-emitting organic EL display panel in which the insulating layer defines a light-emitting region having a predetermined shape, and the light-emitting region or the non-light-emitting region other than the light-emitting region is composed of characters, figures, symbols, or a combination thereof It represents a display pattern, and a picture layer is arranged on the entire panel outside the first support, and a transflective layer is arranged between the first support and the picture layer. The second electrode side of the second electrode and the second support body. Re either by arranging the color layer 1 hand side, or in those with a color to said second support itself, the transparent electrode of the first electrode, the second electrode as the reflective electrode, wherein The total light transmittance of the semi-transmissive / semi-reflective layer is expressed by the total light transmittance T (%) defined in JISK7136, and ranges from 20% to 80%. The brightness of the color layer disposed on either side of the second support, the brightness of the color layer attached to the second support itself, and the first support. The difference between the brightness of the organic layer through the body and the brightness of the region where the second electrode is laminated is the value of the L * a * b chromaticity diagram indicating the hue and saturation. The difference in L * is 60 or less .

  Further, in any one of the above light emitting organic EL display panels, a circularly polarizing plate is provided between the transflective layer and the first support so as to cover the entire surface of the light emitting part and the non-light emitting part. It is characterized by that.

In any one of the above-described light-emitting organic EL display panels, the transflective layer is disposed on a first support.
Alternatively, the light-emitting organic EL display panel according to any one of the above, wherein the transflective layer is a transparent third support disposed on the side opposite to the light-emitting side of the first support. It is arranged on one side of the body.
Alternatively, in any one of the above-described light emitting organic EL display panels, the transflective layer is disposed on one surface of the circularly polarizing plate.

  Further, in any one of the light emitting organic EL display panels described above, the color layer is provided on one side of the fourth support on the side that is not the light emitting unit side of the second support. It is characterized by that.

  Also, any one of the above-described light-emitting organic EL display panels, wherein the first support, the second support, the third support, the support of 4, the transparent support coated with a pattern layer, It is a flexible plastic substrate.

In addition, any one of the light-emitting organic EL display panels described above, which is a passive matrix type.
Alternatively, any one of the light-emitting organic EL display panels described above, which is an active matrix type.

  In addition, any one of the above-described light-emitting organic EL display panels is an organic light-emitting poster.

  The light-emitting organic EL display panel according to any one of the above, further comprising a color filter layer, wherein a color conversion phosphor layer is provided between the color filter layer and the transparent electrode. It is characterized by having.

(Function)
The light-emitting organic EL display panel of the present invention is configured in such a configuration as a light-emitting organic EL display panel in which a pattern layer is disposed on the entire surface of the light-emitting side (also referred to as an observer side). It is possible to suppress unnecessary visual recognition due to the difference in reflectance and hue between the electrode, auxiliary electrode, and organic EL layer and their surroundings, and the pattern layer is lower than the second layer (the second layer). The problem of being inconspicuous due to the color of the support layer side) can be solved.
At the same time, the light-inhibiting layer made of a light-shielding layer is provided on the light emission side from the first electrode so as to shield the non-light-emitting region and the region where any of the organic EL layer and the second electrode is not laminated. It is supposed that the problem that the edge of the light shielding layer opening is noticeable in the case where it is disposed (also referred to as the observer side) (see Japanese Patent Application No. 2007-91159) can be solved.
Specifically, the insulating layer defines a light emitting region having a predetermined shape, and the light emitting region or the non-light emitting region other than the light emitting region represents a display pattern composed of characters, figures, symbols, or a combination thereof . A pattern layer is disposed on the entire surface of the panel on the outside of the first support, a semi-transparent semi-reflective layer is disposed between the first support and the pattern layer, and the second electrode A color layer is disposed on either one of the second support and the second support, or the second support itself is colored . Using the electrode as a transparent electrode and the second electrode as a reflection electrode, the total light transmittance of the transflective layer is expressed by the total light transmittance T (%) defined in JISK7136, and ranges from 20% to 80%. Any one of the second supports through the first support when not emitting light The brightness of the color layer disposed on the side, the brightness of the color layer attached to the second support itself, and the organic layer and the second electrode through the first support are laminated. This is achieved by the difference in the lightness L * in each color light-emitting part, which is the value of the L * a * b chromaticity diagram showing the hue and saturation. is doing. Specifically, by providing a semi-transmissive / semi-reflective layer between the first support and the picture layer, visibility at the time of organic EL light emission is achieved while achieving a visual recognition suppression effect below the picture layer. To be good.
Further, a color layer is disposed on the second support side of the second electrode and on either side of the second support, or the second support itself is colored. Therefore, it is possible to prevent the pattern layer from being inconspicuous due to the color of the lower layer (second support side) than the pattern layer.

In particular, the total light transmittance of the transflective layer is represented by the total light transmittance T as defined in JISK7136 (%), by that you have a 20% to 80% range der Ru embodiment, effect In particular, while achieving the effect of suppressing the visibility below the pattern layer, the visibility during organic EL emission is good.
The total light transmittance of the transflective layer is preferably 30% to 70%, more preferably 40% to 60%. It achieves good visibility during organic EL emission while achieving it.

In particular, the brightness of the color layer disposed on one side of the second support through the first support when no light is emitted, and the second support Regarding the difference between the brightness of the color layer attached to itself and the brightness of the area where the organic layer and the second electrode through the first support are laminated, L * a indicating the hue and saturation * the value of b chromaticity diagram, in each color light emitting portion, by the difference in brightness L * is 60 or less der Ru form, effectively, the pattern layer is higher than the pattern layer underlying (second support side) It is possible to suppress the inconspicuousness due to the color.
When the difference in lightness L * is 40 or less, the color difference is sufficiently small, so that the color of the color layer is inconspicuous. When the difference in lightness L * is greater than 40 and less than 50, the color of the color layer becomes slightly noticeable when the device is viewed from within 50 cm.
However, when viewed from a distance of more than 50 cm, the color of the color layer is inconspicuous.
When the difference in lightness L * is greater than 50 and less than or equal to 60, the color of the color layer is slightly noticeable when the device is viewed from within 100 cm.
However, when viewed from 100 cm or more, the color of the color layer is inconspicuous.
When the difference in lightness L * is greater than 60, the color difference is large, so that the color of the color layer becomes conspicuous even when the device is viewed farther than 100 cm.
Therefore, the color of the color layer becomes conspicuous from any distance.

Moreover, when the transparent protective layer is arrange | positioned in the pattern layer, protection of a pattern layer can be ensured.
Examples of the pattern layer include those formed by direct coating or by attaching another transparent support on which the pattern layer is coated.
The paint for the pattern layer is preferably a transparent colored ink.

Further, between the transflective layer and the first support, the light emitting portion, so as to cover the non-light emitting portion entirely, is provided with a circularly polarizing plate, by the form of the invention of claim 4 This is effective for blurring the edge viewing, which is unnecessary viewing in the display area.

More specifically, the form of the invention of claim 5 in which the transflective layer is disposed on the first support, and the transflective layer is light emission of the first support. The embodiment of claim 6 and the transflective layer disposed on one surface of a transparent third support disposed on the side opposite to the side are disposed on one surface of the circularly polarizing plate. The form of the invention of claim 7 is mentioned.
The form of the invention of claim 5 has an advantage that the third support is not required.
Moreover, as the color layer, in addition to a form arranged on one surface of the second support or a form in which the second support itself is colored to form a color layer, the second support There is also an embodiment in which the light-emitting portion is provided on one side of the fourth support on the side that is not the light-emitting portion side.

Further, by the second electrode is in the form is of the transparency, it is assumed that can reliably suppress the visibility of the second electrode.

Further, the first support, second support, the third support member, the support 4, a transparent support having coating the pattern layer is a flexible plastic substrate of claim 9, By adopting the form of the present invention , it is possible to cope with heat change and external force, and its application is widened.

  Moreover, the form which is a passive matrix type and the form which is an active matrix type are mentioned.

  In particular, it is effective when it is an organic light emitting poster.

  The form provided with the color filter layer is mentioned, The form provided with the color conversion fluorescent substance layer between this color filter layer and the said transparent electrode is mentioned.

  As described above, the present invention can suppress unnecessary visual recognition due to a difference in reflectance and a color difference between the electrode, auxiliary electrode, and organic EL layer to be formed, and their surroundings. A light emitting layer with a picture layer that can solve the problem that the picture layer becomes inconspicuous by being affected by the color below the picture layer (second support layer side). Type organic EL display panels can be provided.

Embodiments of the present invention will be described with reference to the drawings.
FIG. 1A is a schematic cross-sectional view of a first example of an embodiment of a light-emitting organic EL display panel of the present invention, and FIG. 1B is a diagram of an embodiment of the light-emitting organic EL display panel of the present invention. FIG. 1C is a schematic cross-sectional view of a second example, FIG. 1C is a schematic cross-sectional view of a third example of the embodiment of the light-emitting organic EL display panel of the present invention, and FIG. FIG. 2B is a schematic cross-sectional view of a fifth example of the embodiment of the light-emitting organic EL display panel according to the present invention. FIG. 2C is a schematic sectional view of a sixth example of the embodiment of the light emitting organic EL display panel of the present invention, and FIG. 3A is a diagram of the embodiment of the light emitting organic EL display panel of the present invention. FIG. 3B is a schematic cross-sectional view of the seventh example, and FIG. 3B is a schematic cross-sectional view of the eighth example of the embodiment of the light-emitting organic EL display panel of the present invention. FIG. 4B is a schematic sectional view of a ninth example of the embodiment of the light emitting organic EL display panel of the present invention, and FIG. 4B is a schematic diagram of the tenth example of the embodiment of the light emitting organic EL display panel of the present invention. FIG. 5A is a schematic sectional view of an eleventh example of the embodiment of the light-emitting organic EL display panel of the present invention, and FIG. 5B is a schematic view of the light-emitting organic EL display panel of the present invention. FIG. 6A is a schematic sectional view of a twelfth example of the embodiment, FIG. 6A is a schematic sectional view of a thirteenth example of the embodiment of the light-emitting organic EL display panel of the present invention, and FIG. FIG. 7A is a schematic sectional view of a fourteenth example of an embodiment of a light-emitting organic EL display panel according to the present invention. FIG. 7A is a schematic diagram of a fifteenth example of an embodiment of a light-emitting organic EL display panel according to the present invention. FIG. 7B is a schematic sectional view of a sixteenth example of the embodiment of the light emitting organic EL display panel according to the present invention, and FIG. ) Is a schematic sectional view of a seventeenth example of the embodiment of the light-emitting organic EL display panel of the present invention, and FIG. 8B is an eighteenth example of the embodiment of the light-emitting organic EL display panel of the present invention. FIG. 9A is a cross-sectional view schematically showing a stacked structure of the organic EL display device body of the light-emitting organic EL display panel of the first example shown in FIG. FIG. 9B is an enlarged cross-sectional view of the light-emitting portion showing the patterning of the insulating layer in an easy-to-understand manner, and FIGS. 10A to 10D schematically show the laminated structure of the organic EL layer of the light-emitting portion. It is sectional drawing.
1 to 10, 11 is a first support, 12 is a second support, 13 is a third support, 14 is a fourth support, and 20 is a first electrode (here, an anode). ), 25 is a second electrode (here, a cathode), 27 is an auxiliary electrode, 30 is an insulating layer, 40 is an organic EL layer, 50 is a sealing material, 60 is a light emitting region, and 65 is a second electrode and an organic EL. 75 is a polarizing plate (also referred to as a circularly polarizing plate), 76 is a transflective layer (also referred to as a transflective layer), 77 is a pattern layer, 78 is a color layer, and 80 is an organic EL display device body ( 81 is a light emitting portion, 82 is a flexible substrate (also referred to as a first support here), 83 is a barrier layer, 84 is a first electrode (here, an anode), and 85 is organic. EL layer, 85a is an organic light emitting layer, 86 is a second electrode (here, a cathode), 87 is a barrier layer, and 88 is a flexible sealing group. (Also referred to as a second support here), 89 is an insulating layer (also referred to as an insulating layer portion, here is a photoresist), 89A is an opening, 90 is a sealant, 91 is a hole transport layer, and 92 is an organic layer The light emitter layer, 93 is an electron transport layer, 94 is an organic light emitter layer / hole transport layer, and 95 is an electron transport layer / organic light emitter layer.

First, a first example of an embodiment of a light emitting organic EL display panel according to the present invention will be described with reference to FIG.
The light-emitting organic EL display panel of the first example includes a transparent first support 11, first electrode 20, organic EL layer 40, second electrode 25, and second support 12 stacked in this order. In addition, a partitioned insulating layer 30 is formed between the first electrode 20 and the second electrode 25 so as to open the light-emitting region and cover the non-light-emitting region. A light-emitting organic EL display panel whose side is a light emission extraction side (also referred to as an observer side). A pattern layer 77 is disposed on the entire surface of the light emission extraction side and on the outermost side. A transflective layer 76 is disposed on the outer surface, and a color layer 78 is disposed on the outer surface of the second support 12.
Here, the outer side means the side opposite to the light emitting side, and the inner side means the light emitting side.
In particular, in the first example, the total light transmittance of the transflective layer 76 is expressed by the total light transmittance T (%) defined in JIS K7136, and is in the range of 20% to 80%. The lightness of the color layer 78 disposed outside the second support 12 through the first support 11 when no light is emitted, and the organic layer 40 through the first support 11 About the difference with the brightness of the area | region where the 2nd electrode 25 is laminated | stacked, it is a value of the L * a * b chromaticity diagram which shows chromaticity and saturation, and the difference of the brightness L * in each color light emission part is shown. The range is 60 or less, preferably 50 or less, and more preferably 40 or less.
As a color of the color layer 78, a dark red color is roughly used.
Thus, by providing the semi-transmissive / semi-reflective layer 76 between the first support 11 and the pattern layer 77, organic EL light emission is achieved while achieving a visual suppression effect below the pattern layer. It has good visibility at the time.
Further, by providing the color layer 78 on the outer surface of the second electrode 25 on the second support 12 side, it is possible to prevent the pattern layer 77 from being affected by the color of the lower layer and becoming inconspicuous. It is supposed to be.
The light-emitting organic EL display panel of the first example is the same as the conventional light-emitting organic EL display panel shown in FIG. 11, but further includes a transflective layer 76, a pattern layer 77, and a color layer 78. Is.
Here, as the pattern layer 77, the pattern layer is directly applied and formed, but it may be attached using a film base material coated with the pattern layer.
Here, a transparent protective layer is disposed on the pattern layer.
As the transflective layer 76, a metal oxynitride film or an inorganic film can be applied.
Usually, the oxynitride film is formed by sputtering, vapor deposition, or the like, and the inorganic film is formed by sputtering, vacuum vapor deposition, CVD, sol-gel, or polymer and dispersed by printing or photolithography.
The total light transmittance of the transflective layer 76 is represented by the total light transmittance T defined in JIS K7136, and is 20% to 80%, preferably 30% to 70%, and more preferably 40% to 60%. %, The visibility at the time of organic EL light emission is good while achieving the effect of suppressing the visibility of the lower layer.
The color layer 78 may be formed by attaching a colored film to a support or formed by applying a color ink to the support, but is not limited thereto.
The first example is a structure in which the color layer 78 is disposed outside the second support 12 and can be attached after the organic EL display device body is manufactured, which is advantageous in terms of workability and mass productivity.

FIG. 9A is a cross-sectional view schematically showing the stacked configuration of the organic EL display device body of the light-emitting organic EL display panel of the first example.
Here, as the first support body 11 and the second support body 12, a flexible plastic base material is used. However, the present invention is not limited to this.
In the case of a flexible plastic base material, it can cope with a heat change and an external force, and its application is widened.
Further, an enlarged cross-sectional view of the light emitting portion showing the patterning of the insulating layer in an easy-to-understand manner is as shown in FIG.
The patterned insulating layer 30 defines a light emitting region having a predetermined shape, and the light emitting region or the non-light emitting region other than the light emitting region represents, for example, a display pattern composed of characters, figures, symbols, or a combination thereof.
An opening 89A of the insulating layer 89 (corresponding to 30 in FIG. 1A) corresponds to a light emitting region, and the other region covered by the insulating layer 30 is a non-light emitting region.
In the first example, the insulating layer 30 is disposed between the first electrode 11 and the organic EL layer 40. However, the patterned insulating layer is disposed between the organic EL layer 40 and the second electrode 12. The form which has arrange | positioned 30 is also mentioned.

Next, other parts will be described with reference to FIG.
(Flexible substrate 82)
A flexible base material 82 shown in FIG. 9 corresponds to the support body 11 shown in FIG. 1A, and the support body 11 shown in FIG. .
The flexible substrate 82 (corresponding to the support 11 shown in FIG. 1A) is provided on the surface on the viewer side in the light emitting organic EL display panel of the first example.
Therefore, this flexible base material 82 has a display pattern (hereinafter referred to as “characters, etc.”) that is displayed as a light-emitting display region or a non-light-emitting region when the organic EL layer 40 emits light. “).” Is transparent so that an observer can easily see.
As the flexible base material 82, a film-like resin base material or a thin glass plate having a thickness of about 100 μm or less and provided with a protective plastic plate or a protective plastic layer is used.
Such a base material is preferably used as a base material for a light-emitting display panel that can be mounted or installed on various objects because it has excellent flexibility and can be rounded or bent.

The resin material for forming the flexible base material 82 is not particularly limited as long as it has sufficient flexibility as a base material for a light-emitting display panel in the state after formation. , Polyethylene, polypropylene, polyvinyl chloride, polyvinyl fluoride, polystyrene, ABS resin, polyamide, polyacetal, polyester, polycarbonate, modified polyphenylene ether, polysulfone, polyarylate, polyetherimide, polyamideimide, polyimide, polyphenylene sulfide, liquid crystal Polyester, polyethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polyoxymethylene, polyethersulfone, polyetheretherketone, polyacrylate, acrylonitrile-styrene resin Phenolic resins, urea resins, melamine resins, unsaturated polyester resins, epoxy resins, polyurethane, silicone resin, amorphous polyolefins, and the like.
Other resin materials can be used as long as they satisfy the conditions that can be used for light-emitting display panels, and are copolymerized using two or more types of monomers that are starting materials for the above-described resins. It may be a copolymer obtained.

Of these resinous substrates, those having good solvent resistance and heat resistance, and those having good gas barrier properties such as water vapor and oxygen are more preferred, depending on the application.
In the case of using a resin material having a good gas barrier property, a barrier layer 83 to be described later can be omitted, but in the light emitting display panel of this example, the flexible substrate 2 on which the barrier layer 83 is formed is used. preferable.
A flexible base material is manufactured by extrusion molding etc. so that it may become a film-form base material of thickness 50-200 micrometers.

In addition, a thin glass plate with a thickness of about 100 μm or less provided with a protective plastic plate or a protective plastic layer is excellent in flexibility and can be rounded or bent. Used.
At this time, it is more preferable to use a protective plastic plate or a protective plastic layer having a good gas barrier property.

By setting the thickness of the flexible substrate 82 within the above range, preferable flexibility can be imparted to the light-emitting display panel.
When the obtained light-emitting display panel is installed in a complicated shape or used as a display device of a portable device, the light-emitting display panel can be thinned to 50 μm to 100 μm to 400 μm. It is possible to realize the thinness unique to the light-emitting display panel for advertisement.

(Barrier layer 83)
The barrier layer 83 is a layer that acts to block moisture (water vapor) and oxygen that adversely affect the life and light emitting performance of the organic EL layer 85.
The barrier layer 83 is not an essential layer in the light emitting display panel of the present invention, but is a layer that is preferably formed between the flexible substrate 82 and the first electrode 84 described above.
This barrier layer 83 also needs to be transparent, like the above-described flexible substrate.

As the barrier layer 83, an inorganic oxide thin film is preferably applied.
Examples of the inorganic oxide include silicon oxide, aluminum oxide, titanium oxide, yttrium oxide, germanium oxide, zinc oxide, magnesium oxide, calcium oxide, boron oxide, strontium oxide, barium oxide, lead oxide, zirconium oxide, sodium oxide, Examples thereof include lithium oxide and potassium oxide, and one or more of these can be used.
Among these, silicon oxide, aluminum oxide, or titanium oxide is preferably used. Moreover, silicon nitride can be mentioned as things other than an inorganic oxide.
The thickness of the barrier layer 83 provided in the light emitting organic EL display panel of this example is preferably 0.01 to 0.5 μm.

The barrier layer 83 includes the above-described flexible substrate 82 (corresponding to the first support 11 in FIG. 1A) and the first electrode 84 (corresponding to the first electrode 20 in FIG. 1A). In the meantime, it is formed on the flexible substrate 82 by physical vapor deposition such as reactive sputtering or vacuum vapor deposition.
As a film forming apparatus for the barrier layer 83, a vapor deposition apparatus capable of physical vapor deposition while transporting the above-described film-like flexible substrate 82 by roll-to-roll is used.

(First electrode 84, second electrode 86)
The first electrode 84 and the second electrode 86 shown in FIG. 9 correspond to the first electrode 20 and the second electrode 25 shown in FIG. 1A, respectively. Here, in FIG. Here, the first electrode 20 and the second electrode 25 are also referred to as a first electrode 84 and a second electrode 86, respectively.
The first electrode 84 and the second electrode 86 are indispensable layers provided for applying an electric field to the organic EL layer 85 described later.
The electrode provided on the flexible substrate 82 side when viewed from the organic EL layer 85 is referred to as a first electrode 84, and the electrode provided on the flexible sealing substrate 88 side is referred to as a second electrode 86.
Regarding transparency, here, the first electrode 84 has transparency as in the case of the flexible substrate 82 and the barrier layer 83 described above, but is not limited thereto.
The form comprised so that both the 1st electrode 84 and the 2nd electrode 86 may have a light transmittance is also mentioned.
The second electrode 86 is not necessarily transparent, but the second electrode 86 is also transparent when it is desired to display characters and the like from the back side opposite to the observer side in FIG. It is preferable.

  Examples of the first electrode 84 include thin film electrode materials such as indium tin oxide (ITO), indium oxide, indium zinc oxide (IZO), gold, and polyaniline. Among these, indium tin oxide (ITO) and indium zinc oxide (IZO), which are transparent oxides, are preferably used.

As the second electrode 86, in addition to the above-mentioned transparent electrode material made of indium tin oxide (ITO), indium oxide, indium zinc oxide (IZO), gold, polyaniline, etc., magnesium alloy (MgAg etc.), aluminum alloy (AlLi, AlCa, AlMg, etc.) or metallic calcium.
When the second electrode 86 is also required to be transparent, the same transparent electrode as the first electrode 84 is formed.

In addition, although the 1st electrode 84 and the 2nd electrode 86 are made into the anode and the cathode, respectively, it is not limited to this.
Either the first electrode 84 or the second electrode 86 may be an anode or a cathode.
When the anode is used, it is preferably formed of a conductive material having a high work function (for example, indium tin oxide (ITO)) so that holes can be easily injected. When the anode is used, electrons are injected. In order to facilitate, it is preferable to form the conductive material with a small work function (for example, metallic calcium).

  The thicknesses of the first electrode 84 and the second electrode 86 are both preferably 0.005 to 0.5 μm, and are usually provided adjacent to the organic EL layer 85 by a sputtering method, a vacuum deposition method, or the like. .

The first electrode 84 and the second electrode 86 may be formed on the entire surface, or may be formed in a pattern so as to correspond to the position where the organic EL layer 85 is formed.
The patterned electrode is formed by etching with a photosensitive resist after being formed on the entire surface.

(Organic EL layer 85)
The organic EL layer 85 shown in FIG. 9 corresponds to the organic EL layer 40 shown in FIG. 1A, and the organic EL layer 40 shown in FIG.
The organic EL layer 85 is an essential layer in the light emitting display panel.
Examples of the configuration of the organic EL layer 85 include various layer configurations as shown in FIGS. 10 (a) to 10 (d).

  The organic EL layer 85 shown in FIG. 10A is an embodiment in which an organic light emitting layer 85a exclusively including an organic light emitting body (also referred to as an organic fluorescent light emitting body) is formed between the electrodes as the organic EL layer 85. In the organic EL layer 85 shown in FIG. 10B, a hole transport layer 91 made of a hole transport material is formed on the anode side of the organic light emitter layer 92, and an electron transport material is made on the cathode side of the organic light emitter layer 92. The organic EL layer 85 shown in FIG. 10C is formed with an organic light emitting layer 94 having the properties of a hole transport layer, and the organic light emitting layer 94 is formed. The organic EL layer 85 shown in FIG. 10 (d) is formed with an organic light emitting layer 95 having the properties of an electron transport layer, and the organic light emitting layer A mode in which a hole transport layer 91 is formed on the anode side of the layer 95 A.

Although not shown, the organic EL layer 85 has a stacked structure of a hole transport material / organic light emitter mixed layer formed by mixing at least a hole transport material and an organic light emitter, and an electron transport layer. It may also be a laminated structure of a mixed layer of an organic light emitter / electron transport material formed by mixing at least both an organic light emitter and an electron transport material, and a hole transport layer. .
Furthermore, the organic EL layer 85 may be composed of a mixed layer in which at least three of a hole transport material, an organic light emitter, and an electron transport material are mixed.

For the organic light emitter layer 92 containing an organic light emitter, an azo compound that is generally used as an organic EL layer is used, but an azo compound to which another organic light emitter is added may be used.
Such other organic light emitters include pyrene, anthracene, naphthacene, phenanthrene, coronene, chrysene, fluorene, perylene, perinone, diphenylbutadiene, coumarin, styryl, pyrazine, aminoquinoline, imine, diphenylethylene, merocyanine, quinacridone or rubrene, Or what is normally used as organic light-emitting bodies, such as these derivatives, can be mentioned.
The organic light emitting layer is formed using an organic light emitting layer forming coating solution containing such a compound.

Examples of the material for the hole transport material layer 91 include phthalocyanine, naphthalocyanine, porphyrin, oxadiazole, triphenylamine, triazole, imidazole, imidazolone, pyrazoline, tetrahydroimidazole, hydrazone, stilbene, butadiene, and derivatives thereof. What is normally used as a hole transport material can be used. Also, commercially available as a composition for forming a hole transport layer, for example, poly (3,4) ethylenedioxythiophene / polystyrene sulfonate (abbreviation PEDOT / PSS, manufactured by Bayer, trade name: Baytron P AI4083, marketed as an aqueous solution. Etc.) can also be used as a material for the hole transport layer.
The hole transport layer 91 is formed using a hole transport layer forming coating solution containing such a compound.

Materials for the electron transport layer 93 include anthraquinodimethane, fluorenylidenemethane, tetracyanoethylene, fluorenone, diphenoquinone oxadiazole, anthrone, thiopyran dioxide, diphenoquinone, benzoquinone, malononitrile, niditrobenzene, nitro. What is normally used as an electron transport material, such as anthraquinone, maleic anhydride or perylene tetracarboxylic acid, or a derivative thereof, can be used.
The electron transport layer 93 is formed using an electron transport layer forming coating solution containing such a compound.

The organic EL layer 85 is formed by, for example, using the organic light-emitting layer forming coating liquid, the hole transporting layer forming coating liquid, and the electron transporting layer forming coating liquid described above in accordance with the stacking mode illustrated in FIG. It is performed by injecting into a predetermined position divided by a partition wall.
Examples of the injection means include a dispenser method of dropping using a dispenser, an ink jet method, a spin coating method, and a printing method.
In this example, the organic EL layer is preferably formed under roll-to-roll manufacturing conditions by a printing method such as gravure printing, offset / gravure printing, and inkjet printing.
In particular, the method of separately printing by the ink jet printing method is preferably applied because it can be applied without contacting the base material, so that the base material is not damaged, and a plate is not required and the degree of freedom is high.
Productivity can be further improved by forming the organic EL layer 85 by these printing methods.
Each injected coating liquid is subjected to a heat treatment such as a vacuum heat treatment according to a normal means.
The thickness of the organic EL layer 85 composed of each of the above-described lamination modes is preferably in the range of 0.1 to 2.5 μm.

Note that the partition wall (not shown) forms a region divided for each emission color on the plane of the light emitting display panel.
Depending on the configuration of the organic EL layer 85, a hole transport layer forming coating solution, an organic light emitting layer forming coating solution, an electron transport layer forming coating solution, or the like is injected into the region divided by the partition walls. .
As a partition material, various materials conventionally used as a partition material, for example, a photosensitive resin, an active energy ray curable resin, a thermosetting resin, a thermoplastic resin, and the like can be used.
As a partition formation means, it can be formed by means suitable for the partition material employed, and for example, it can be formed by using a thick film printing method or by patterning using a photosensitive resist.

(Sealing agent 90)
The sealing agent 90 is the flexible sealing material described above, and a gap is formed between the light emitting portion (also referred to as an organic EL element) 81 including the organic EL layer 85 and the flexible sealing substrate 88. Is preferably provided for the purpose of preventing the presence of odor and improving the sealing performance.
As the sealant 90, various commonly used ones can be used, but an epoxy resin-based thermosetting adhesive or an acrylic resin-based UV curable adhesive can be preferably used.

  In addition, since the sealing agent 90 has a barrier property depending on the type, one side of the light emitting portion 81 (opposite to the observer side) is provided without providing a plastic sealing base material 88 and a barrier layer 87 described later. ) May be composed only of this sealant.

Even if the sealing agent 90 is directly formed on the entire surface of the light emitting portion (organic EL element) 81, the sealing agent surface is formed on the flexible sealing substrate 88 and then the surface of the sealing agent is formed on the light emitting portion. Alternatively, it may be formed so as to be bonded onto 81.
The sealant is preferably formed as thin as possible within a range in which the gap can be filled, and the thickness and the like are appropriately adjusted.
The curing means differs depending on whether it is a thermosetting type or a UV curable type, and can be cured based on the respective curing conditions.

This sealant 90 is preferably provided on the entire surface of the light emitting portion (organic EL element) 81.
In the case of a conventional frame-like coating applied to a glass substrate, if a force such as bending the panel is applied after the sealing substrate is bonded, the vicinity of the center of the sealing substrate may come into contact with the element. However, such a problem can be suppressed by providing the sealant 90 on the entire surface.
Therefore, the organic EL display obtained by forming the sealant on the entire surface does not have voids inside, so it prevents unnecessary distortion and tension even when it is rolled or bent. Thus, problems such as abnormal contact inside the organic EL element can be suppressed.
Moreover, since the sealing agent itself has a barrier property, by providing the sealing agent over the entire surface to increase the sealing degree, it is possible to further suppress moisture permeability and air permeability and improve the protection of the element. be able to.

(Barrier layer 87)
Although this barrier layer 87 is not an essential layer in the light emitting display panel of this example, as shown in FIG. 9, it corresponds to the flexible sealing substrate 88 (corresponding to the second support 12 in FIG. 1A). ) Side is a layer preferably provided on the side.
The barrier layer 87 is formed between the flexible sealing substrate 88 and the second electrode 86, more specifically, between the flexible sealing substrate 88 and the sealing agent 90 described above. The same effects as the barrier layer 83 described above are exhibited.
Moreover, although it does not specifically limit about the material to be used, The same thing as the above-mentioned barrier layer 83 can be used preferably.

The barrier layer 87 is formed on a flexible sealing substrate 88 described later by a physical vapor deposition method such as a reactive sputtering method or a vacuum vapor deposition method.
As a film forming apparatus for the barrier layer 87, a vapor deposition apparatus capable of physical vapor deposition while transporting a film-like flexible sealing substrate 88 described later by roll-to-roll is used.

(Flexible sealing substrate 88)
A flexible sealing substrate 88 shown in FIG. 9 corresponds to the second support 12 shown in FIG. 1A, and the second support 12 shown in FIG. Also referred to as a sealing substrate 88.
The flexible sealing substrate 88 is the above-described flexible sealing material. In the light emitting display panel of the present invention, as shown in FIG. 9, the flexible sealing substrate 88 is provided on the surface opposite to the observer side. Is.
When the light emitting display panel of this example is observed from only one side, the flexible sealing substrate 88 is not required to be transparent, but when observed from both sides, the flexible sealing substrate 88 It is preferable that the material 88 has transparency.
By setting it as the transparent flexible sealing base material 88, an observer can visually recognize a character etc. easily also from the back side.

As the flexible sealing substrate 88, a film-shaped resin substrate is used.
A film-like resin base material is excellent in flexibility and can be rolled or bent, and thus is preferably used as a base material for a light-emitting display panel that can be mounted or installed on various objects. Since the forming material and the forming method are the same as those of the flexible base material 82 described above, they are omitted here.
Note that the thickness of the flexible sealing substrate 88 is also preferably 50 to 200 μm, like the above-described flexible substrate 82, and can give preferable flexibility to the light-emitting display panel.

(Insulating layer 89)
An insulating layer 89 illustrated in FIG. 9 corresponds to the insulating layer 30 illustrated in FIG. 1A, and the insulating layer 30 illustrated in FIG. 1A is also referred to as an insulating layer 89.
The insulating layer 89 is formed in a pattern having an opening corresponding to a predetermined pattern between the first electrode 84 and the second electrode 86 described above.
The formed insulating layer 89 defines a light emitting display region having a predetermined shape.
The light emitting display area constitutes a display pattern made up of characters, figures, symbols or combinations thereof, or the non-light emitting area other than the light emitting area is made up of characters, figures, symbols or combinations thereof. Configure.

That is, since the insulating layer 89 provided between the two electrodes cuts off the voltage applied between the two electrodes, even if an organic EL element is formed between the two electrodes, the light emission in that region is prevented. Acts as follows.
Therefore, the region where the insulating layer 89 is patterned is a non-light emitting region, and as a result, the light emitting region is defined.
On the other hand, in the light emitting region in which the insulating layer 89 is not formed, since both electrodes are in contact with both sides of the organic EL layer, the organic EL element to which voltage is applied from both electrodes emits light and exerts an appealing effect. Works.

The light emitting region or the non-light emitting region defined by the insulating layer 89 is preferably a display pattern composed of characters, figures, symbols, or a combination thereof.
If an insulating layer is formed so that such a display pattern is displayed, an excellent appeal effect can be given to a specific display pattern made up of characters, figures, symbols, or combinations thereof.

  In addition, a partition wall is formed with dots by a dispenser method, an ink jet method, a spin coating method, a printing method, or the like, in which a coating liquid for forming an organic EL layer, a coating liquid for forming a hole transport layer, and a coating liquid for forming an electron transport layer are dropped using a dispenser. By injecting into the predetermined position, multicolor light emission can be performed.

Such an insulating layer 89 may be laminated on the first electrode 84 side or the second electrode 86 side, and is not particularly limited.
Since the resist material used is usually transparent, there is almost no visibility even if it is patterned, and the insulating layer 89 itself does not affect the visibility of the light-emitting display panel.

Hereinafter, a method for forming a display pattern using the insulating layer 89 will be described in detail.
As a material for forming the insulating layer 89, a photosensitive resin composition used as a resist material is preferably used.
The photosensitive resin composition may be a positive photosensitive resin composition or a negative photosensitive resin composition. Examples of the positive photosensitive resin composition include those having a photodegradable and soluble quinonediazide photosensitive resin as a main component.
In addition, as the negative photosensitive resin composition, for example, a photodegradable crosslinked azide photosensitive resin, a photolytic insoluble diazo photosensitive resin, a photodimerization cinnamate photosensitive resin, a photopolymerization type Examples thereof include an unsaturated polyester photosensitive resin, a photopolymerizable acrylate resin, or a cationic polymerization resin.
In these photosensitive resin compositions, a photopolymerization initiator, a sensitizing dye, and the like can be blended as necessary.

The insulating layer 89 is formed in a predetermined pattern by applying the above-described photosensitive resin composition to the entire surface of any electrode, performing pattern exposure, and developing.
Specifically, first, the photosensitive resin composition described above is formed on the entire surface of the electrode by spin coating, and the photosensitive resin composition is exposed with a mask pattern.
Exposure, ultra-high pressure mercury lamp, high pressure mercury lamp, carbon arc, a light source such as a xenon arc or metal halide lamp is used, 0.1~10,000mJ / cm ^2, preferably by ultraviolet irradiation 10~1,000mJ / cm ² Done.

When the positive photosensitive resin composition is used, the exposed portion is solubilized, so that the exposed portion is dissolved and removed by development.
And the part which is not exposed remains as an insulating layer of a predetermined pattern.
On the other hand, when the negative photosensitive resin composition is used, the exposed portion is insolubilized, so that the unexposed portion is dissolved and removed by development.
The exposed portion remains as an insulating layer having a predetermined pattern.
Although the thickness of an insulating layer is arbitrarily adjusted according to the insulation resistance intrinsic | native to resin which comprises the insulating layer, Usually, it exists in the range of 0.5-3.0 micrometers.

The light emitting organic EL display panel of this example has been described above. However, as long as the object and effect of the present invention are not impaired, a mode in which functional layers other than the above-described layers are provided may be used.
Examples of such a functional layer include a low refractive index layer, a reflective layer, a light absorption layer, and the like used in ordinary organic EL elements or light-emitting display panels.

In the light-emitting organic EL display panel of the present invention, the thickness of the base material and the thickness of the layer described above are adjusted so that the total thickness is 400 μm or less, preferably 200 μm or less, and 50 μm or more. preferable.
The light-emitting organic EL display panel having a thickness within such a range is flexible and can be rounded or bent, and can be installed in a complicated shape when viewed as an electric decoration panel.
When the thickness of the light emitting organic EL display panel exceeds 400 μm, the flexibility may be slightly inferior.
Further, if the thickness of the light emitting organic EL display panel is less than 50 μm, it is easily affected by a decrease in barrier properties and heat and stress during the process.

In the light emitting organic EL display panel of this example, a laminated structure including at least the flexible substrate 11 and the first electrode 20 on one side of the organic EL layer 85, and at least the second electrode 25 on the other side. And the laminated structure made of the flexible sealing material 88 preferably have the same or similar expansion coefficient.
By doing so, even if an external factor such as heating is added during the manufacturing process of the light emitting display panel, adverse effects such as distortion of the light emitting display panel are less likely to appear.
Here, the laminated structure on one side of the organic EL layer 85 and the laminated structure on the other side are added during the manufacturing process by making the number of layers, the material, the thickness, and the like the same or substantially the same. Even if an external factor is added, since the distortion generated on both sides is balanced, adverse effects such as distortion of the obtained light-emitting display panel can be reduced.

Further, in the manufacturing process of the light emitting organic EL display panel, since each layer is formed by a wet method, continuous manufacturing becomes possible, and thus a light emitting display panel that can be supplied to the market at a price setting that is easily accepted by the market can be provided.
For example, the flexible base material 2 and the flexible sealing base material 88 on which the barrier layers 83 and 87 are formed by the continuous vapor deposition method are prepared in advance, and the flexible base material 82 has the first layer on the barrier layer 83 side. One electrode 84 is formed by a sputtering method, an organic EL layer 85 is formed on the first electrode 84 by a printing method, a second electrode 86 is formed on the organic EL layer 85 by a vacuum deposition method, and the second A sealing agent 90 is applied and formed on the electrode 86, and a flexible sealing substrate 88 including a barrier layer 87 is provided on the sealing agent 90.
By adopting such a wet method in many processes, a light emitting display panel can be manufactured by a roll-to-roll continuous manufacturing method with excellent productivity.

Next, a second example and a third example of the embodiment of the light-emitting organic EL display panel of the present invention will be described based on FIG. 1 (b) and FIG. 1 (c), respectively.
The light-emitting organic EL display panel of the second example shown in FIG. 1B is the same as the light-emitting organic EL display panel of the first example, except that the transflective layer 76 is replaced with the first support 11. And a transparent third support 13 having a transflective layer 76 disposed on one surface thereof, with the transflective layer 76 on the outer side. It is.
The light-emitting organic EL display panel of the third example shown in FIG. 1C is the same as the light-emitting organic EL display panel of the first example, except that the transflective layer 76 is replaced with the first support 11. A transparent third support 13 having a transflective layer 76 disposed on one surface thereof between the pattern layer 77 and the pattern layer 77 so that the transflective layer 76 is on the inner side. It is.
Both the second example and the third example are the same as the first example except for the arrangement of the semi-transmissive / semi-reflective layer 76, and the same components as those of the first example can be applied to each part. Will be omitted.
In the second example and the third example, the first electrode 20, the auxiliary electrode 27, the organic EL layer 40, and the surroundings of the first electrode 20, the auxiliary electrode 27, and the surroundings are configured in the same manner as in the first example. Further, it is possible to suppress unnecessary visual recognition due to the difference in reflectance and the difference in hue, and to solve the problem that the pattern layer 77 is not noticeable due to the lower layer color.
In particular, both the second example and the third example have a structure in which the color layer 78 is arranged outside the second support 12 as in the first example, and after the organic EL display device body is manufactured. It can be attached and is advantageous in terms of workability and mass productivity.

Next, a fourth example, a fifth example, and a sixth example of the embodiment of the light-emitting organic EL display panel of the present invention are shown in FIGS. 2 (a), 2 (b), and 2 (b), respectively. This will be described based on c).
A fourth example of the embodiment of the light-emitting organic EL display panel of the present invention shown in FIG. 2A is the color layer in the light-emitting organic EL display panel of the first example shown in FIG. Instead of 78, a color layer 78 is arranged inside the second support 12.
A fifth example of the embodiment of the light emitting organic EL display panel of the present invention shown in FIG. 2B is the same as that of the second example of the light emitting organic EL display panel shown in FIG. Instead of the color layer 78, the color layer 78 is arranged inside the second support 12.
The sixth example of the embodiment of the light emitting organic EL display panel of the present invention shown in FIG. 2C is the same as that of the third example of the light emitting organic EL display panel shown in FIG. Instead of the color layer 78, the color layer 78 is arranged inside the second support 12.
In the fourth example to the sixth example, the reflection of the first electrode 20, the auxiliary electrode 27, the organic EL layer 40, and the surroundings of the first electrode 20, the auxiliary electrode 27, and the surroundings can be performed similarly to the first example. Unnecessary visual recognition due to the difference in the rate and the difference in hue is suppressed, and further, the problem that the pattern layer 77 becomes inconspicuous due to the lower layer color can be solved.
Each of the fourth to sixth examples has a structure in which the color layer 78 is disposed inside the second support 12 and is less susceptible to external influences after the organic EL display device body is manufactured.
In the fourth to sixth examples, the lightness of the color of the color layer 78 disposed inside the second support 12 through the first support 11 when no light is emitted, and the first About the difference of the brightness of the area | region where the organic layer 40 and the 2nd electrode 25 which let the support body 11 pass are laminated | stacked, it is a value of the L * a * b chromaticity diagram which shows chromaticity and saturation, and each color In the light emitting part, the difference in brightness L * is set to 60 or less, preferably 50 or less, and more preferably 40 or less.
The fourth example to the sixth example are the same as the first example to the third example except for the arrangement of the color layer 78, and the same parts can be applied to each part. Omit.

Next, a seventh example and an eighth example of the embodiment of the light emitting organic EL display panel according to the present invention will be described with reference to FIGS. 3 (a) and 3 (b).
A seventh example of the embodiment of the light emitting organic EL display panel of the present invention shown in FIG. 3A is the color layer in the light emitting organic EL display panel of the first example shown in FIG. Instead of 78, a transparent fourth support 14 having a color layer 78 disposed on one side thereof on the outside of the second support 12 is arranged with the color layer 78 on the inside thereof. It is.
An eighth example of the embodiment of the light emitting organic EL display panel of the present invention shown in FIG. 3B is the color layer in the light emitting organic EL display panel of the second example shown in FIG. Instead of 78, a transparent fourth support 14 having a color layer 78 disposed on one side thereof on the outside of the second support 12 is arranged with the color layer 78 on the inside thereof. It is.
In the seventh example and the eighth example as well, the reflection of the first electrode 20, the auxiliary electrode 27, the organic EL layer 40, and the surroundings of the first electrode 20, the auxiliary electrode 27, and the surroundings in the same manner as in the first example. Unnecessary visual recognition due to the difference in the rate and the difference in hue is suppressed, and further, the problem that the pattern layer 77 becomes inconspicuous due to the lower layer color can be solved.
In the seventh example and the eighth example, in addition to the production of the organic EL display device body, a color layer can be disposed on the fourth support, which is advantageous in terms of work. With the structure in which the color layer 78 is disposed inside the third support 12, it is less susceptible to external influences after the organic EL display device body is manufactured.
Also in the seventh example and the eighth example, the brightness of the color layer 78 disposed outside the second support 12 through the first support 11 when no light is emitted, and the first The difference between the brightness of the region where the organic layer 40 and the second electrode 25 are passed through the support 11 is the value of the L * a * b chromaticity diagram indicating the chromaticity and the saturation. In each color light emitting portion, the difference in lightness L * is set to 60 or less, preferably 50 or less, and more preferably 40 or less.
The seventh example, the eighth example, and the arrangement of the color layer 78 are the same as those in the first example to the third example, and the same parts can be applied to each part. Omit.

Next, a ninth example and a tenth example of the embodiment of the light emitting organic EL display panel of the present invention will be described with reference to FIGS. 4 (a) and 4 (b).
The ninth example of the embodiment of the light-emitting organic EL display panel of the present invention shown in FIG. 4A is the color layer in the light-emitting organic EL display panel of the first example shown in FIG. Instead of 78, a transparent fourth support 14 having a color layer 78 disposed on one side thereof on the outside of the second support 12 is arranged with the color layer 78 on the outside. It is.
The tenth example of the embodiment of the light emitting organic EL display panel of the present invention shown in FIG. 4B is the color layer in the light emitting organic EL display panel of the second example shown in FIG. Instead of 78, a transparent fourth support 14 having a color layer 78 disposed on one side thereof on the outside of the second support 12 is arranged with the color layer 78 on the outside. It is.
In the ninth example and the tenth example as well, the reflection of the first electrode 20, the auxiliary electrode 27, the organic EL layer 40, and the surroundings of the first electrode 20, the auxiliary electrode 27, and the surroundings in the same manner as in the first example. Unnecessary visual recognition due to the difference in the rate and the difference in hue is suppressed, and further, the problem that the pattern layer 77 becomes inconspicuous due to the lower layer color can be solved.
In both the ninth example and the tenth example, a color layer can be disposed on the fourth support separately from the production of the organic EL display device body, which is advantageous in terms of work.
Also in the ninth example and the tenth example, the brightness of the color layer 78 disposed outside the second support 12 through the first support 11 when no light is emitted, and the first The difference between the brightness of the region where the organic layer 40 and the second electrode 25 are passed through the support 11 is the value of the L * a * b chromaticity diagram indicating the chromaticity and the saturation. In each color light emitting portion, the difference in lightness L * is set to 60 or less, preferably 50 or less, and more preferably 40 or less.
The ninth example, the tenth example, and the arrangement of the color layer 78 are the same as the first example to the third example, and the same parts can be applied to each part. Omit.

Next, eleventh to twenty-fourth examples of embodiments of the light-emitting organic EL display panel of the present invention will be described.
First, the eleventh example and the twelfth example are based on FIGS. 5A and 5B, respectively, and the thirteenth example and the fourteenth example are respectively shown in FIGS. Based on 6 (b), the fifteenth example and the sixteenth example are shown in FIG. 7 (a) and FIG. 7 (b), respectively, the seventeenth example and the eighteenth example are shown in FIG. 8 (a) and FIG. 8 (b) will be described.
An eleventh example shown in FIG. 5A is the first support 11 in place of the transflective layer 76 in the light emitting organic EL display panel of the first example shown in FIG. A polarizing plate 75 having a transflective layer 76 disposed on one surface thereof is disposed between the pattern layer 77 and the pattern layer 77 so that the transflective layer 76 is on the outer side.
A twelfth example shown in FIG. 5B is a configuration between the first support 11 and the third support 13 in the light-emitting organic EL display panel of the second example shown in FIG. The polarizing plate 75 is disposed.
A thirteenth example shown in FIG. 6A is the first support 11 in place of the transflective layer 76 in the light emitting organic EL display panel of the fourth example shown in FIG. A polarizing plate 75 having a transflective layer 76 disposed on one surface thereof is disposed between the pattern layer 77 and the pattern layer 77 so that the transflective layer 76 is on the outer side.
A fourteenth example shown in FIG. 6B is a structure between the first support 11 and the third support 13 in the light-emitting organic EL display panel of the fifth example shown in FIG. The polarizing plate 75 is disposed.
The fifteenth example shown in FIG. 7A is the first support 11 in place of the transflective layer 76 in the light-emitting organic EL display panel of the seventh example shown in FIG. A polarizing plate 75 having a transflective layer 76 disposed on one surface thereof is disposed between the pattern layer 77 and the pattern layer 77 so that the transflective layer 76 is on the outer side.
A sixteenth example shown in FIG. 7B is a light emitting organic EL display panel of the eighth example shown in FIG. 3B, and is between the first support 11 and the third support 13. The polarizing plate 75 is disposed.
A seventeenth example shown in FIG. 8A is the first support 11 in place of the transflective layer 76 in the light emitting organic EL display panel of the ninth example shown in FIG. A polarizing plate 75 having a transflective layer 76 disposed on one surface thereof is disposed between the pattern layer 77 and the pattern layer 77 so that the transflective layer 76 is on the outer side.
The eighteenth example shown in FIG. 8B is the same as the tenth example light emitting organic EL display panel shown in FIG. 4B between the first support body 11 and the third support body 13. The polarizing plate 75 is disposed.
In addition, as the polarizing plate 75, a commercially available circularly polarizing plate is usually used.

Next, a nineteenth example to a twenty-fourth example (not shown) will be described.
The nineteenth example is the same as the eighth example shown in FIG. 3B in place of the transflective layer 76 disposed on one surface of the transparent third support 13. The transflective layer 76 is disposed on the other surface other than the one surface.
The twentieth example is the same as the tenth example shown in FIG. 4B except that the transflective layer 76 disposed on one surface of the transparent third support 13 is replaced with the third support 13. The transflective layer 76 is disposed on the other surface other than the one surface.
In the twelfth example shown in FIG. 5 (b), the twenty-first example replaces the transflective layer 76 disposed on one surface of the transparent third support 13 with the third support 13 The transflective layer 76 is disposed on the other surface other than the one surface.
The twenty-second example replaces the transflective layer 76 disposed on one surface of the transparent third support 13 in the fourteenth example shown in FIG. The transflective layer 76 is disposed on the other surface other than the one surface.
In the sixteenth example shown in FIG. 7B, the twenty-third example replaces the transflective layer 76 disposed on one surface of the transparent third support 13 with the third support 13 The transflective layer 76 is disposed on the other surface other than the one surface.
The twenty-fourth example is the same as the eighteenth example shown in FIG. 8B in place of the transflective layer 76 disposed on one surface of the transparent third support 13. The transflective layer 76 is disposed on the other surface other than the one surface.
In the nineteenth to twenty-fourth examples, the eighth example, the tenth example, the twelfth example, the fourteenth example, the sixteenth example, and the eighteenth example are respectively performed in this manner. In the same manner, unnecessary visual recognition due to the difference in reflectance and hue between the first electrode 20, the auxiliary electrode 27, the organic EL layer 40, and their surroundings is suppressed, and the visual suppression layer It is possible to blur the edge visual recognition which is unnecessary visual recognition in the display area other than the covered area, and furthermore, by providing the adjustment layer 76 composed of the semi-transmissive semi-reflective layer in this way, the picture layer 77 is It is possible to solve the problem of being inconspicuous due to the color of the lower layer (second support side) than the pattern layer and the problem that the edge of the opening of the visual suppression layer made of the light shielding layer is noticeable.
The eleventh example to the sixteenth example are the same as those of the first example except for the arrangement of the adjustment layer 76, and the same components as those of the first example can be applied to each part, and the description thereof will be omitted.

Each said form is an example and is not limited to this.
Even if other functional layers are added to the first to 25th examples, the present invention is not limited to these as long as the same effects can be obtained.
Further, for example, the second support itself may be colored so that the same effect can be obtained instead of the color layer.
In each mode, a mode in which the second electrode (here, the cathode) is black and a black color layer is arranged is also exemplified.
The present invention is also applicable to POP (Point Of Purchase advertising) in the case of passive matrix type and active matrix type.
Of course, the present invention can also be applied to a light emitting organic EL display panel provided with a color filter layer and a light emitting organic EL display panel provided with a color conversion phosphor layer between the color filter layer and the transparent electrode.

[Example]
Hereinafter, the light-emitting organic EL display panel of the present invention will be described with specific examples.
Example 1
First, a conventional light-emitting organic EL display panel (hereinafter referred to as an organic EL display device main body) shown in FIG. 11 is manufactured as follows, and this is used on the first support. A semi-transparent semi-reflective layer 76 is disposed on the surface, and a film base material coated with a picture layer and covered with a transparent protective film is attached to one surface of the second support 12 on the other surface. A color layer 78 was disposed on the outer surface, and a light-emitting organic EL display panel of the first example shown in FIG.
The semi-transparent semi-reflective layer 76 was disposed by silver by vacuum deposition.
The arrangement of the color layer 78 is obtained by coloring a film base material made of polyester and attaching it to the second support 12.
In the case of Example 1, the total reflection transmittance of the semi-transmissive / semi-reflective layer 76 is 53%, and the brightness difference in the region where the color layer 78, the organic layer, and the second electrode through the first support 11 are laminated is different. Although it was 32, it can suppress that the pattern layer 77 is not conspicuously influenced by the color of the layer lower than it, and achieves the visual recognition suppression effect of the layer lower than the pattern layer, and has good visibility during organic EL light emission. It was.

明度Ｌ＊の差が４０以下のとき、色差が充分に小さいため、色彩層の色は目立たない。（評価４）
明度Ｌ＊の差が４０より大で、５０以下の時、デバイスを５０ｃｍ以内から見ると、色彩層の色がわずかに目立ってしまう。
しかし、５０ｃｍより遠くから見ると、色彩層の色は目立たない。（評価３）
明度Ｌ＊の差が５０より大で、６０以下の時、デバイスを１００ｃｍ以内から見ると、色彩層の色がわずかに目だってしまう。
しかし、１００ｃｍ以上から見ると、色彩層の色は目立たない。（評価２）
明度Ｌ＊の差が６０より大の時、色差が大きいため、デバイスを１００ｃｍより遠くに離れて見ても、色彩層の色が目立ってしまう。
よってどの距離から見ても色彩層の色が目立ってしまう。（評価１） In addition, for the color layer 78 having various colors, the influence of the lower layer color on the pattern layer 77 was examined.
The brightness of the color layer 78 disposed outside the second support 12 through the first support 11 when no light is emitted, the organic layer 40 and the first through the first support 11 The difference from the brightness of the region where the two electrodes 25 are stacked is indicated.

When the difference in lightness L * is 40 or less, the color difference is sufficiently small, so that the color of the color layer is inconspicuous. (Evaluation 4)
When the difference in lightness L * is greater than 40 and less than 50, the color of the color layer becomes slightly noticeable when the device is viewed from within 50 cm.
However, when viewed from a distance of more than 50 cm, the color of the color layer is inconspicuous. (Evaluation 3)
When the difference in lightness L * is greater than 50 and less than or equal to 60, the color of the color layer is slightly noticeable when the device is viewed from within 100 cm.
However, when viewed from 100 cm or more, the color of the color layer is inconspicuous. (Evaluation 2)
When the difference in lightness L * is greater than 60, the color difference is large, so that the color of the color layer becomes conspicuous even when the device is viewed farther than 100 cm.
Therefore, the color of the color layer becomes conspicuous from any distance. (Evaluation 1)

表２から、半透過半反射層７６としての半透過半反射層の全光線透過率が、２０％〜８０％、好ましくは３０％〜７０％、さらに好ましくは４０％〜６０％の範囲であることが、視認性の面で好ましいことが分かる。 全光線透過率０％〜２０％では透過率が低いため、５０ｃｍ以内でデバイスを見ても有機ＥＬパネルの発光が弱く発光部が視認し難い。（評価２）
全光線透過率２０％から３０％ではデバイスを５０ｃｍ以内から見ると、有機ELパネルの発光部が視認することができるが、５０ｃｍ以上はなれると視認し難い。（評価４）
３０％から４０％ではデバイスを１００ｃｍ以内から見ると有機ＥＬパネルの発光部が視認することができるが、１００ｃｍ以上はなれると視認し難い。（評価６）
４０％〜６０％では、１００ｃｍ以上はなれても絵柄、有機パネルの発光部共に視認しやすい。（評価７）
６０％〜７０％ではデバイスを１００ｃｍ以内から見ると、絵柄を視認することができるが、１００ｃｍ以上はなれると反射率が低いため視認し難い。（評価５）
７０％〜８０％ではデバイスを５０ｃｍ以内から見ると、絵柄を視認することができるが、５０ｃｍ以上はなれると反射率が低いため視認し難い。（評価３）
８０％〜１００％では５０ｃｍ以内でデバイスを見ても反射率が低すぎるため、絵柄を視認し難い。（評価１） In addition, the semi-transparent semi-reflective layer 76 having various transmissivities was examined for the visibility at the time of organic EL emission while achieving the effect of suppressing the visibility of the lower layer, and as shown in Table 2. .

From Table 2, the total light transmittance of the transflective layer as the transflective layer 76 is in the range of 20% to 80%, preferably 30% to 70%, more preferably 40% to 60%. This is preferable in terms of visibility. Since the transmittance is low at a total light transmittance of 0% to 20%, even if the device is viewed within 50 cm, the light emission of the organic EL panel is weak and it is difficult to visually recognize the light emitting portion. (Evaluation 2)
When the total light transmittance is 20% to 30%, the light emitting portion of the organic EL panel can be visually recognized when the device is viewed from within 50 cm, but it is difficult to visually recognize when the device is separated by 50 cm or more. (Evaluation 4)
From 30% to 40%, the light emitting part of the organic EL panel can be visually recognized when the device is viewed from within 100 cm, but it is difficult to visually recognize when the device is separated from 100 cm or more. (Evaluation 6)
At 40% to 60%, both the pattern and the light emitting part of the organic panel are easily visible even if the distance is 100 cm or more. (Evaluation 7)
In 60% to 70%, when the device is viewed from within 100 cm, the pattern can be visually recognized. However, when the device is separated from 100 cm or more, the reflectance is low, so that it is difficult to visually recognize the pattern. (Evaluation 5)
In 70% to 80%, when the device is viewed from within 50 cm, the pattern can be visually recognized. However, if the device is separated from 50 cm or more, the reflectance is low, so that it is difficult to visually recognize the pattern. (Evaluation 3)
From 80% to 100%, even if the device is viewed within 50 cm, the reflectance is too low, so it is difficult to visually recognize the pattern. (Evaluation 1)

<Production of organic EL display device body>
The production of the organic EL display device body will be described with reference to FIGS.
On a flexible substrate 82 (corresponding to the first support 11 in FIG. 1 (a)) having a thickness of 100 μm formed by extrusion molding of polyethersulfone resin, the thickness of SiON is 0 by a continuous vapor deposition apparatus. A 1 μm barrier layer 83 was formed.
A transparent electrode made of ITO having a thickness of 0.1 μm is formed on the side of the barrier layer 83 of the flexible substrate 82 by an ion plating method to form an indium tin oxide (ITO) electrode film having a thickness of 200 nm. A photosensitive resist was applied on the film, mask exposure, development, and etching of the ITO electrode film were performed to form 10 transparent electrode layers having a stripe shape of 2.2 mm width at a pitch of 4 mm.
Next, an auxiliary electrode (27 in FIG. 1A) was formed by laminating silver having a thickness of 0.5 μm on the anode by a vacuum deposition method.
On the anode and auxiliary electrode, a 1 μm thick insulating layer made of a photoresist was formed by spin coating.
The insulating layer 89 is patterned by performing cleaning treatment and ultraviolet plasma cleaning, and then applying a negative photosensitive resin by a spin coating method and patterning by a photolithography process to emit light of 2 mm × 2 mm on each transparent electrode layer. An insulating layer (thickness 1 μm) was formed so that areas (openings) existed at a pitch of 4 mm.
On the anode on which the insulating layer pattern (corresponding to the insulating layer 30 in FIG. 1A) is formed, an organic EL layer 85 having a thickness of 150 nm made of a hole transport material and a red organic light emitting material (FIG. 1A). Of the organic EL layer 40) was formed by a printing method.
An electron injection layer was formed on the organic EL layer.
A metal mask having 2.2 mm wide stripe-shaped openings at a pitch of 4 mm on the surface side on which the red light emitting layer is formed, the openings are orthogonal to the stripe-shaped transparent electrode layer, and the above-mentioned It arrange | positioned so that it might be located on the light emission area (opening part) of an insulating layer.
Next, calcium was vapor-deposited through this mask by a vacuum vapor deposition method (deposition rate = 0.1 nm / second) to form a film, and ten electron injection layers (thickness 10 nm) were formed at a pitch of 4 mm.
Next, the metal mask used for forming the electron injection layer was used as it was, and aluminum was deposited by vapor deposition (deposition rate = 0.4 nm / second) to form a film.
Thereby, a stripe-shaped electrode layer (thickness 300 nm) made of aluminum and having a width of 2.2 mm was formed on the electron injection layer.
On the cathode, a sealant made of a thermosetting epoxy resin was formed by screen printing so as to have a thickness of about 150 μm.
On the sealant, a flexible sealing substrate 88 (corresponding to the second support 12 in FIG. 1A) provided with a barrier layer was provided.
The flexible sealing substrate 88 provided with the barrier layer 87 is formed on a flexible sealing substrate 88 having a thickness of 100 μm obtained by extruding a polyether sulfone resin in advance using a continuous vapor deposition apparatus. A barrier layer 87 having a thickness of 0.1 μm was used.
With respect to this organic EL display panel, when the device lifetime was evaluated based on the light emission efficiency at 1000 cd / m ^{2 and} the time until the light emission luminance was reduced by half during constant current driving, the light emission efficiency was 1.0 cd / A and the device lifetime was It was 100,000 hours.
Note that the element lifetime was evaluated based on the time until the initial luminance was set to 100 cd / m ² , the device was continuously driven with the current, and halved to 50 cd.
In this way, a light emitting organic EL display panel body was produced.
In Example 1, it is possible to suppress unnecessary visual recognition due to a difference in reflectance and hue between the second electrode 25, the auxiliary electrode 27, and the organic EL layer 40 that are configured and the surroundings. Furthermore, the problem that the pattern layer 77 becomes inconspicuous due to the color of the lower layer (second support side) than the pattern layer and the problem that the edge of the opening of the visual suppression layer made of the light shielding layer is conspicuous can be solved.

(Example 2)
First, in the same manner as in Example 1, a conventional light-emitting organic EL display panel (hereinafter referred to as an organic EL display device main body) shown in FIG. 11 was produced, and then used as a first support. A color layer 76 was disposed on the body in the same manner as in Example 1.
On the other hand, a semi-transmissive / semi-reflective layer 76 was previously disposed on one surface of the polarizing plate 75 in the same manner as in Example 1, with the same specifications.
Moreover, the film base material which coated the pattern layer on the one surface and covered with the transparent protective film was prepared.
Then, on the first support 11 side of the organic EL display device body, a polarizing plate 75 provided with a semi-transmissive / semi-reflective layer 76 and a film base material provided with a pattern layer 77 were attached in this order, and FIG. A light-emitting organic EL display panel of an eleventh example shown in FIG.
A commercially available circularly polarizing plate was used as the polarizing plate 75.
In the case of Example 11 as well as Example 1, it is possible to suppress the pattern layer 77 from becoming inconspicuous due to the lower layer color, and at the same time achieving the effect of suppressing the visual recognition of the layer below the pattern layer, while at the time of organic EL light emission The visibility was good.

FIG. 1A is a schematic cross-sectional view of a first example of an embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 1B is an embodiment of the area light emitting organic EL display panel of the present invention. FIG. 1C is a schematic sectional view of a third example of the embodiment of the area light emitting organic EL display panel of the present invention. FIG. 2A is a schematic sectional view of a fourth example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 2B is the implementation of the area light emitting organic EL display panel of the present invention. FIG. 2C is a schematic sectional view of a sixth example of the embodiment of the area light emitting organic EL display panel of the present invention. FIG. 3A is a schematic sectional view of a seventh example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 3B is an embodiment of the area light emitting organic EL display panel of the present invention. It is a schematic sectional drawing of the 8th example of a form. FIG. 4A is a schematic sectional view of a ninth example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 4B is the implementation of the area light emitting organic EL display panel of the present invention. It is a schematic sectional drawing of the 10th example of a form. FIG. 5A is a schematic cross-sectional view of an eleventh example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 5B is an embodiment of the area light emitting organic EL display panel of the present invention. It is a schematic sectional drawing of the 12th example of a form. FIG. 6A is a schematic cross-sectional view of a thirteenth example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 6B is an embodiment of the area light emitting organic EL display panel of the present invention. It is a schematic sectional drawing of the 14th example of a form. FIG. 7A is a schematic cross-sectional view of a fifteenth example of the embodiment of the area light emitting organic EL display panel of the present invention, and FIG. 7B is an embodiment of the area light emitting organic EL display panel of the present invention. It is a schematic sectional drawing of the 16th example of a form. FIG. 8A is a schematic cross-sectional view of a seventeenth example of the embodiment of the area light emitting organic EL display panel according to the present invention, and FIG. 8B is an embodiment of the area light emitting organic EL display panel according to the present invention. It is a schematic sectional drawing of the 18th example of a form. FIG. 9A is a cross-sectional view schematically showing a stacked configuration of the organic EL device main body of the area emission type organic EL display panel of the first example shown in FIG. 1A, and FIG. It is the expanded sectional view of the light emission part which showed the patterning of the insulating layer intelligibly. FIG. 10A to FIG. 10D are cross-sectional views schematically showing another stacked structure of the organic EL device body. It is a schematic sectional drawing of one example of the conventional area light emission type organic electroluminescence display panel.

Explanation of symbols

11 1st support body 12 2nd support body 13 3rd support body 14 4th support body 20 1st electrode (here anode)
25 Second electrode (here, cathode)
27 Auxiliary electrode 30 Insulating layer 40 Organic EL layer 50 Sealing material 60 Light emitting region 65 Overlapping region 75 of second electrode and organic EL layer Polarizing plate (also called circularly polarizing plate)
76 Transflective layer (also referred to as transflective layer)
77 Pattern layer 78 Color layer 80 Organic EL device body (also called display panel body)
81 Light emitting portion 82 Flexible base material (also referred to as second support here)
83 Barrier layer 84 1st electrode (here anode)
85 Organic EL layer 85a Organic phosphor layer 86 Second electrode (cathode here)
87 Barrier layer 88 Flexible sealing substrate (also referred to as second support here)
89 Insulating layer (also referred to as insulating layer, here photoresist)
89A Opening 90 Sealant 91 Hole Transport Layer 92 Organic Light Emitter Layer 93 Electron Transport Layer 94 Organic Light Emitter Layer / Hole Transport Layer 95 Electron Transport Layer / Organic Light Emitter Layer

Claims (14)

At least a transparent first support, first electrode, organic EL layer, second electrode, and second support are laminated in this order, and between the first electrode and the second electrode. A light-emitting organic EL display panel having a light-emitting area and a partitioned insulating layer formed so as to cover a non-light-emitting area and having a first support side as a light emission extraction side, wherein the insulating layer includes: A light-emitting area having a predetermined shape is defined, and a light-emitting area or a non-light-emitting area other than the light-emitting area represents a display pattern composed of characters, figures, symbols, or a combination thereof, on the outside of the first support, A pattern layer is disposed on the entire surface of the panel, a transflective layer is disposed between the first support and the pattern layer, the second electrode side of the second electrode, and A color layer is disposed on one side of the second support, or the second support Those wearing color to support itself, the transparent electrode of the first electrode, the second electrode reflective electrodes, the total light transmittance of the transflective layer has a total light transmittance T is prescribed in JISK7136 (%), Which is in the range of 20% to 80%, and is disposed on any one side of the second support through the first support when no light is emitted. The difference between the brightness of the color layer, the brightness of the color layer applied to the second support itself, and the brightness of the region where the organic layer and the second electrode are laminated through the first support. Is a value of an L * a * b chromaticity diagram indicating hue and saturation, and the difference in lightness L * is 60 or less in each color light emitting section . 2. The light emitting organic EL display panel according to claim 1 , wherein a transparent protective layer is disposed on the pattern layer. 3. The light-emitting organic EL display panel according to claim 1 , wherein the pattern layer is formed by direct application, or another transparent support coated with the pattern layer is pasted. A light-emitting organic EL display panel, which is arranged. A light-emitting type organic EL display panel according to any one of claims 1 to 3, between the transflective layer and the first support, the light emitting portion, so as to cover the non-light emitting portion entirely A light-emitting organic EL display panel comprising a circularly polarizing plate. 5. The light-emitting organic EL display panel according to claim 1 , wherein the transflective layer is disposed on a first support. 6. Organic EL display panel. A light-emitting type organic EL display panel according to any one of claims 1 to 5, wherein the transflective layer includes a first transparent decor on the side opposite to the light emission side of the first support A light-emitting organic EL display panel, wherein the light-emitting organic EL display panel is disposed on one surface of a support body. 7. The light-emitting organic EL display panel according to claim 1 , wherein the transflective layer is disposed on one surface of the circularly polarizing plate. EL display panel. 8. The light-emitting organic EL display panel according to claim 1 , wherein the color layer is on the side of the second support that is not on the light-emitting portion side and on the one side of the fourth support. A light-emitting organic EL display panel, characterized in that the light-emitting organic EL display panel is provided. The light-emitting organic EL display panel according to any one of claims 1 to 8 , wherein the first support, the second support, the third support, the support of 4, and the pattern layer are provided. An area light emitting organic EL display panel, wherein the coated transparent support is a flexible plastic substrate. The light-emitting organic EL display panel according to any one of claims 1 to 9 , wherein the light-emitting organic EL display panel is a passive matrix type. 10. The light-emitting organic EL display panel according to claim 1, wherein the light-emitting organic EL display panel is an active matrix type. 12. The light emitting organic EL display panel according to claim 1, wherein the light emitting organic EL display panel is an organic light emitting poster. 13. The light emitting organic EL display panel according to claim 1 , further comprising a color filter layer. The light-emitting organic EL display panel according to claim 13 , further comprising a color conversion phosphor layer between the color filter layer and the transparent electrode.

Images