JPH11214150A - Electric field light emitting display panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored electric field light emitting display panel which is flexible, has a thin configuration, and can be manufactured easily. SOLUTION: This electric field light emitting display panel consists of multi- color or full-color electric field light emitting display panel constituted in such a way that a stripe transparent anode 7 is formed on a transparent substrate unit of a high molecular film having a hydrophobic surface, stripe metal cathodes 4 to 6 having 1/2 or less of all color light emitting width of a picture element in the orthogonal direction to the stripe transparent anode 7 are formed through an organic layer having a single color and fluorescent light emitting property on it, and each single color panel unit 1 to 3 is accumulated and bonded integrally so that the stripe metal cathodes are not overlapped each other vertically to obtain excellent electric field light emitting display panel which has a large screen and can be manufactured easily.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electroluminescent display panel used for a light emitting display, a light emitting diode, a surface emitting light source and the like.

[0002]

2. Description of the Related Art Conventionally, a display panel made of an electroluminescent device (EL) has features of high visibility, excellent display capability, and high-speed response. In recent years, a report has been made on an electroluminescent device using an organic compound as a constituent material (for example, a related paper Applied Physics Letters, vol. 51, p. 913, 1987).
Physics Letters, 51, 1987, P.913.))).

In this report, C.I. W. Tang et al. Disclose an electroluminescent device having a structure in which an organic light emitting layer and a charge transport layer are stacked. Here, an excellent electroluminescent device is obtained by using a tris (8-quinolinol) aluminum complex (hereinafter abbreviated as Alq) having both high luminous efficiency and electron transport as a luminescent material.

[0004] Also, Journal of Applied Physics, Vol. 65, p. 3610, 1989 (Journal
f Applied Physics, 65, 1989, p. 3610) states that Alq forming an organic light emitting layer has a coumarin derivative or DCM1 (Eas
A device doped with a fluorescent dye such as tman Chemicals was prepared, and it was reported that the emission color was changed by appropriate selection of the dye, and that the luminous efficiency was increased as compared with that of the non-doped dye. Following this research, much research and development has been carried out. As new functional materials, fluorescent chelating metal complexes, electron-transporting organic molecules, and hole-transporting organic molecules have been developed. Considerations are being made.

As one of the structures of a color and multi-color display panel, Japanese Patent Laying-Open No. 7-114350 discloses a structure in which panels of each color are laminated, and includes a transparent plastic substrate made of acrylic resin and a glass substrate. A general board laminated panel is introduced.

[0006]

However, in the above-mentioned conventional display panel, it is not possible to sufficiently prevent the electrode and various materials from extremely deteriorating due to the moisture absorption of the element and to prevent the simultaneous occurrence of ion conduction. There was a problem that it was not possible to prolong the length of the project. Further, the lamination of the glass substrates has a problem that the thickness is increased, high resolution cannot be obtained, and the glass substrate is fragile and the yield is low.

Therefore, the present invention solves the above-mentioned conventional problems. By forming a color element by laminating a substrate material having a novel structure capable of being flexible and thin, a change in luminance with time and black spots can be achieved. It is an object of the present invention to provide an excellent electroluminescent display panel which is small in thickness, has a large screen, and is easy to manufacture.

[0008]

In order to achieve the above object, the present invention forms a stripe-shaped transparent anode on a transparent substrate unit of a polymer film having a hydrophobic surface, and forms an electron-transporting organic molecule thereon. And forming a striped metal cathode in a direction perpendicular to the striped transparent anode through a monochromatic fluorescent emitting organic layer having and a hole transporting organic molecule,
The width of the striped metal cathode is set to one of the full color emission widths of the pixel.
/ 2 or less to constitute a single-color light-emitting panel unit, and a plurality of the single-color light-emitting panel units thus configured are laminated and bonded and integrated so that the striped metal cathodes do not overlap each other vertically. It consists of a color or full color electroluminescent display panel.

As a result, an excellent electroluminescent display panel which is flexible, can be made thin, has little change in luminance over time and black spots, can have a large screen, and is easy to manufacture can be obtained.

The transparent substrate unit of the polymer film having a hydrophobic surface according to the present invention comprises: (a) at least one functional group selected from an amino group, an amide group, a hydroxyl group and a carboxyl group at a concentration of 1 mol% or less. An adhesive hydrophobic polymer layer containing, an amino group, an amide group, a hydroxyl group, at least two layers of a polymer film having a hydrogen bonding polymer layer having at least one functional group selected from carboxyl groups, or (B) an intermediate polymer layer comprising an adhesive film layer containing at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group; A kind selected from vinylidene chloride, polyvinyl chloride, polyacrylonitrile, fluoropolymer, liquid crystal polyester, and silicone resin The polymer film of at least three layers is sandwiched between the aqueous polymer layer, it is constituted by,
An excellent electroluminescent display panel, which is flexible and can be configured in a thin shape, and has little change in luminance over time and generation of black spots is obtained.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention (Claim 1) is to form a striped transparent anode on a transparent substrate unit of a polymer film having a hydrophobic surface, and to form an electron transporting organic molecule and a hole transporting thereon. A stripe-shaped metal cathode is formed in a direction perpendicular to the stripe-shaped transparent anode via a monochromatic fluorescent light-emitting organic layer having organic organic molecules, and the width of the stripe-shaped metal cathode is set to one of the full-color emission width of the pixel. / 2 or less to constitute a single-color light-emitting panel unit, and a plurality of the single-color light-emitting panel units thus configured are laminated and bonded and integrated so that the striped metal cathodes do not overlap each other vertically. A color or full-color display panel is constructed, and a thin substrate unit is constructed by using a transparent substrate unit of a polymer film having a hydrophobic surface. Can, on not very thick be laminated film has the effect of not occur inconvenience that light emission is reduced by reflecting the adjacent stripe-like metal cathode unit of the upper.

Further, since the device of the present invention is formed on a transparent substrate having a hydrophobic surface having no active hydrogen, an excellent device which does not retain moisture inside the device and is not affected by moisture is formed. it can.

The thickness of the polymer film having a hydrophobic surface used as a transparent substrate unit is desirably not more than の of the pixel size. The thinner the film, the more the light emission can be obtained without reflection loss or absorption loss, and the disorder of the image can be improved. Few. Since the pixel size is generally a single color and 100 μm or less in width, the film is preferably 50 μm or less. The thickness of the light-emitting element itself including the electrodes is 1 μm or less, and is extremely thin as compared with the film thickness.

[0014] The striped transparent anode of the present invention is composed of a transparent conductive film mainly containing indium oxide or tin oxide.

The striped metal cathode of the present invention has Ca as an alkali metal element or an alkaline earth metal element.
A metal alloy thin film containing either Mg or Li is desirable,
Al alloy, Al-Zn alloy, Ag alloy, Sn alloy, Bi
Alloys and In alloys. The concentration of alkali metal or alkaline earth metal in the metal alloy thin film containing the alkali metal or alkaline earth metal determines the work function that determines the electron injection performance, the film forming property of the metal thin film, and the stability of the electrode metal and its interface. It is used at a concentration suitable for its properties.

In the present invention, a monochromatic fluorescent organic layer having an electron transporting organic molecule and a hole transporting organic molecule according to the present invention includes various organic metal dyes and amines which are generally known. Among them, quinoline-based metal complexes have high fluorescence and electronic (redox) stability, and are one of the most excellent specific materials.
There are many compounds such as Be (Qn) ₂ in which 1 is replaced by Be. In addition, for example, DPT (diphenyltetracene),
A dopant such as BTX (benzotiooxaccene), quinacridone, or rubrene can be added together to further enhance the effect.

The quinoline compounds used in the present invention include naphthoquinolines and quinoline complexes in addition to the quinolinols such as Alq.

The electron transporting organic molecule and hole transporting organic molecule used in the present invention include aromatic compounds such as imidazole compounds, triazole compounds, oxadiazole compounds and oxyquinazoline compounds. Suitable imidazole compounds include benzimidazoles and aromatic derivatives such as phenyl, diphenyl and pyridyl substitutions. Similarly, as the triazole-based compound, benztriazoles and aromatic derivatives such as phenyl-substituted, diphenyl-substituted, and pyridyl-substituted are suitable, and a triazine derivative is a similar structure having an action similar to these. Similarly, as the oxadiazole-based compound, aromatic derivatives such as phenyl-substituted, diphenyl-substituted, and pyridyl-substituted are suitable. As oxyquinazoline-based compounds, there are many derivatives like the above-mentioned quinolines.

The structure of the display panel of the present invention is basically such that an electron transporting layer composed of an electron transporting organic molecule, a hole transporting layer composed of a hole transporting organic molecule, and a fluorescent organic compound are provided between a pair of electrodes. When the electron transporting organic molecule has a fluorescent property as described above, the electron transporting organic molecule is often composed of two organic layers. However, a display panel having a three-layer structure may be formed by separately adding fluorescent molecules, and an element configuration to which a dopant, a conductive polymer layer, and the like are added is easily possible.

Further, as the display panel of the present invention, a structure in which a striped metal cathode is formed on the surface of the transparent substrate unit opposite to the striped transparent anode side and laminated, and as a result, the same structure is also a modification of the present invention. Belong.

According to the present invention (claim 2), the transparent substrate unit of the polymer film having a hydrophobic surface includes (a) at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group. At least two layers comprising an adhesive hydrophobic polymer layer containing at a concentration of 1 mol% or less and a hydrogen bonding polymer layer having at least one functional group selected from amino groups, amide groups, hydroxyl groups, and carboxyl groups. Or (b) an intermediate polymer layer comprising an adhesive film layer containing at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group; Layers from polyolefin, polyvinylidene chloride, polyvinyl chloride, polyacrylonitrile, fluoropolymer, liquid crystal polyester, and silicone resin It is composed of at least three layers of a polymer film sandwiched between a kind of separated hydrophobic polymer layer, and this two-layer or three-layer flexible film is resistant to various substances including moisture. It has the effect of exhibiting very high buyer properties.

By forming a display panel with such a laminated flexible film, the moisture content in the panel becomes extremely small. A light-emitting element that operates stably for a long period of time without causing a chemical change in the material and having only electron conduction is obtained.

The hydrophobic polymer includes polyolefin (polyethylene, polypropylene, etc.), polyvinylidene chloride,
There are polyvinyl chloride, polyacrylonitrile, fluorine-based polymers, liquid crystal polyester, and silicone resin, etc., but stretched highly oriented and highly crystalline films have high barrier performance, and polyethylene and polypropylene are biaxially stretched high barrier. Film is often used. As a copolymer, a block copolymer has a higher barrier property than a graft or an alternating product, and is suitable for the present invention. The above-mentioned amino group, amide group, hydroxyl group, carboxyl group, and the like act to impart adhesiveness to the hydrophobic polymer.

The adhesive hydrophobic polymer containing these functional groups at a concentration of 1 mol% or less can be obtained by copolymerization with a monomer having these functional groups or by treatment with a terminal group. It can be easily obtained by blending with a substance having the same.

The concentration of these functional groups at a concentration of 1 mol% or less can sufficiently impart adhesiveness to the hydrophobic polymer, while at such a functional group concentration of 1 mol% or less, the hydrophobic polymer becomes hydrophobic. Does not degrade the function (moisture barrier function).

The amino group, amide group, hydroxyl group, carboxyl group, etc. of the other hydrogen bonding polymer layer all have active hydrogen and are hygroscopic, but the hydrogen bonding polymer has strong intermolecular force due to hydrogen bonding. It is an excellent barrier material for various gases without active hydrogen.

Further, the above-mentioned functional group is added by 1 mol by active hydrogen.
Hydrophobic polymers having a concentration of 1% or less have excellent adhesion. Gases to be blocked include water (moisture), oxygen, and polar gases (NOx, SOx, NH ₃ , etc.). Such a two-layer structure can form an excellent barrier layer, particularly for moisture and oxygen. It can block transmission well.

Specific examples of the adhesive hydrophobic polymer include an adhesive polyolefin obtained by copolymerizing methacrylic acid and maleic acid, an adhesive PVDF, an adhesive PVDC, and the like. Polyethylenes called adomers or ionomers also belong to this category.

According to the present invention (claim 3), the transparent substrate unit may be formed by laminating an adhesive film layer of an intermediate layer of the two-layer laminated film or an intermediate layer of the three-layer laminated film. The multilayer film based on the two-layer or three-layer structure has a function of exhibiting a very high Bayer property against various substances including moisture even though it is a thin film.

For example, polyvinylidene chloride (PVDC)
By superimposing a coextruded film of / ethylene-vinyl alcohol copolymer (EVOH) in multiple layers, an excellent multilayer film having extremely high barrier properties can be formed. Here, the ethylene-vinyl alcohol copolymer (EVOH) is a saponified product of an ethylene-vinyl acetate copolymer and mainly consists of a block copolymer.

According to the present invention (claim 4), the hydrogen bonding polymer is preferably nylon 11, nylon 12, polyvinyl alcohol, polymethacrylic acid, polymaleic acid, or a block copolymer containing at least one of these as a polymerization component. It is at least one selected from polymers, and has an effect of exhibiting high barrier properties against molecules having no hydrogen bond due to strong intermolecular force due to hydrogen bond. Among them, ethylene-vinyl alcohol block copolymer (E
VOH) is an excellent barrier material.

According to the present invention (claim 5), the surface of the hydrogen bonding polymer layer of the polymer film is disposed on the surface of the panel unit which is in contact with the cathode, and the hydrogen bonding polymer layer is covered in a completely dry state. The extremely dry hydrogen-bonding polymer has a strong moisture-absorbing action, and acts to remove moisture in the multilayer panel.

According to the present invention (claim 6), the end of the laminated panel is sealed by hot-melt bonding, and if the sealing is performed by utilizing the hot-melt bonding function of the polymer layer, the height is easily increased. It has the effect of being able to seal efficiently. As described above, when the film of the panel unit has hot melt adhesiveness, heat sealing can be performed without an adhesive.

The hot melt adhesive used in the present invention includes:
Adhesive polyethylene, heat-sealable polyester (P
ET), polyamide (PA), EVOH, polyvinylidene chloride and the like.

Further, an adhesive may be used for this sealing, and an epoxy resin, a silicone resin, or the like which releases a small amount of gas is simple.

According to the present invention (claim 7), the striped metal cathode facing the outside of the outermost monochromatic light emitting panel unit of the laminated panel is covered with a laminated film in which a metal layer or a ceramic thin film is further inserted in the middle. As a result, a film with even higher barrier properties is obtained, and by forming the back cover sheet, a light-emitting panel unit at the laminated end exposed to the outside air is not affected by humidity and has a highly durable element. it can.

According to the present invention (claim 8), a common terminal is formed by connecting stripe-shaped transparent anodes of the same pixel of each single-color panel unit to form a common terminal. Does not complicate.

An embodiment of the present invention will be described below with reference to FIGS. (Embodiment 1) FIG. 1 is a view showing the structure of an electroluminescent display panel according to the present invention. As shown in the figure,
Three monochromatic light emitting panel units 1 (red), 2 (green), 3
(Blue) is stacked so that the striped metal cathodes 4, 5, and 6 do not overlap each other, thereby forming a color display panel. Striped metal cathodes 4, 5,
The width of 6 is configured to be 1/3 of the full color emission width of the pixel. Here, 7 is an orthogonal stripe-shaped transparent anode.

(Embodiment 2) FIG. 2 shows a sectional structure of an electroluminescent display panel of the present invention.
Single-color light-emitting panel units 1 (red), 2 (green), 3
(Blue) are stacked, and red (R), green (G), and blue (B) light is emitted from each of the layers to display. The striped metal cathodes 4, 5, and 6 are stacked so as not to overlap each other with a width of 1/3 of a full color emission width of the pixel.

Each monochromatic light-emitting panel unit has a stripe-shaped transparent anode 9 formed on a transparent substrate unit 8 of a polymer film having a hydrophobic surface, on which an electron transporting organic molecule and a hole transporting organic molecule are formed. Striped metal cathodes 4, 5, and 6 are formed in a direction perpendicular to the striped transparent anode with a monochromatic fluorescent organic layer 10 having the following structure. Reference numeral 11 denotes a back cover sheet, which is preferably made of the same laminated polymer film of the present invention as used for the transparent substrate.

(Embodiment 3) FIG. 3 is a scale diagram showing the ratio of the thickness of each layer in the cross section of the electroluminescent display panel of the present invention, for example, a polymer having a hydrophobic surface laminated with a color pixel size of 300 μm. When the thickness of each of the transparent substrate units 8-1, 8-2, 8-3 of the film is 50 μm,
The thickness of the light emitting element 12 itself including the electrodes is 1 μm or less, and is extremely thin as shown in FIG. 3 as compared with the thickness of the transparent substrate unit.

As can be seen from FIG.
The thickness of the substrate is desirably 2 or less, and the thinner the film, the less the reflection loss and absorption loss of light emission, and the less the image distortion.

(Embodiment 4) FIG. 4 shows the structure of a laminated polymer film used in the present invention. FIG. 4 (a) shows a case of a two-layer structure, in which 13 is an amino group, an amide group, a hydroxyl group, and a carboxyl group. At least one functional group selected from
Adhesive hydrophobic polymer layer containing mol% or less,
Reference numeral 14 denotes a hydrogen bonding polymer layer having at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group. By laminating these layers, a film having a high barrier property can be formed. A film having a multilayer structure in which the two layers are further repeatedly laminated can obtain a higher barrier effect.

FIG. 4B shows a case of a three-layer structure, in which an adhesive film layer 15 containing at least one functional group selected from an amino group, an ahad group, a hydroxyl group and a carboxyl group.
A hydrogen bonding polymer layer 16 having at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group, and a polyolefin (OPP: stretched PP—high crystallinity). A three-layer film sandwiched between a kind of hydrophobic polymer layer 17 selected from polyvinylidene chloride, polyvinyl chloride, polyacrylonitrile, fluorine-based polymer, liquid crystal polyester, and silicone resin. As in the two-layer system, a film having a high barrier property can be formed.

As shown in FIG. 4 (c), the multilayer structure film having the three-layer film as a basic structure has the intermediate polymer between the hydrogen bonding polymer layer 16 and the hydrophobic polymer layer 17. The adhesive film layer 15 is inserted every other layer.

[0046]

Next, specific examples of the present invention will be described.

Example 1 Double-layer film (maleic acid-modified polyethylene 16 μm thick + nylon 1 16 μm thick)
2) Prepare a multilayer laminated film constituted by laminating three times, and after thoroughly drying, on a maleic acid-modified polyethylene,
A striped transparent anode made of an indium-tin-oxide (ITO) thin film was formed and cut into 10 cm squares to form a transparent substrate unit. Each of these three transparent substrate units was set in a vapor deposition apparatus as a vapor deposition target.

An organic layer which emits red (R), green (G), and blue (B) fluorescent light was formed on each of the transparent substrate units on which the striped transparent anodes were formed by vapor deposition. Next, a striped metal cathode composed of an Al-Li electrode in a direction perpendicular to the striped transparent anode was formed to have a width of 1/3 of the RGB full color emission width of the pixel, thereby forming a monochromatic light emitting panel unit.

The three monochromatic light-emitting panel units (R, G, B) thus constructed are stacked so that the striped metal cathodes do not overlap each other as shown in FIG. A sheet obtained by further adding an Al layer having a thickness of 20 μm to the above-mentioned multilayer laminated film on the metal cathode prepared above was prepared as a cover sheet, and the dried nylon 12 surface was covered on the inner side. The peripheral edge was hot-melt bonded using the adhesiveness.

Further, the peripheral portion was sealed with an epoxy resin to form a full-color display panel.
As the anode, the three ITO electrodes in the vertical direction of the three monochromatic light-emitting panel units were short-circuited and taken out as a common electrode for each pixel.

When a DC voltage was applied to the thus obtained plate-shaped color electroluminescent display panel to emit light, a current of ² to 5 mA / cm ² flowed at 6 V and a uniform luminance of about 80 cd / m ² . A high-quality color image was obtained. In the life test under a high humidity environment, the influence of humidity was extremely small.

(Example 2) Instead of the multilayer laminated film of Example 1, the following two types of multilayer laminated films were prepared.

(A) A three-layer basic multilayer laminated film (15
3 μm biaxially oriented crystalline polypropylene and 15 μm thick nylon 12 are alternately passed through a 10 μm thick EVOH.
Times sandwich).

(B) A three-layer basic multilayer laminated film (15
A high-density polyethylene having a thickness of 15 μm and a transparent nylon 12 having a thickness of 15 μm are alternately sandwiched three times via an ethylene-vinyl butyral copolymer film having a thickness of 10 μm).

A transparent anode made of an ITO thin film is formed on each of the surface of the biaxially oriented crystalline polypropylene (a) and the surface of the high-density polyethylene (b), and cut.
Three substrates were prepared for each of (a) and (b). On each of these, elements of each color were formed in the same manner as in Example 1, and three monochromatic light-emitting panel units (R, G,
B) was prepared.

The three monochromatic light-emitting panel units (R, G, B) are stacked so that the striped metal cathodes do not overlap each other, and the substrate unit is placed on the outwardly facing metal cathode. The multilayer laminated films (a) and (b) of the same type as described above were each laminated, and the peripheral edge was heat-sealed to obtain a plate-shaped color electroluminescent display panel.

When a DC voltage was applied to these color electroluminescent display panels (a) and (b) to emit light, a current of 4 to 10 mA / cm ² flowed when 8 V was applied, and a luminance of about 250 cd / m ² was obtained. A color image was obtained. In the life test under a high humidity environment, the influence of humidity was extremely small.

[0058]

As described above, the present invention provides a monochromatic structure in which a striped transparent anode, a monochromatic fluorescent organic layer, and a striped metal cathode are sequentially formed on a transparent substrate unit of a polymer film having a hydrophobic surface. A multi-color or full-color display panel consisting of a plurality of light-emitting panel units laminated and bonded together. A single-color panel unit that is extremely thin and has high barrier properties because it constitutes a transparent substrate with a polymer film. And even when the monochromatic panel units are stacked, they are not thickened, have high flatness, are hardly shaded by the cathode, and have high visibility.

The structure of the polymer film according to the present invention constitutes an excellent thin polymer film having both barrier properties against moisture and adhesiveness between layers. According to the present invention, the following advantages are obtained. Effects can be obtained.

(1) Permeation of gas mainly from moisture from the outside can be suppressed extremely low.

(2) There is no moisture adsorbed on the substrate and no source of moisture, so that the humidity inside the element can be extremely low.

(3) The well-dried hydrogen-bonding polymer layer also functions as a getter for moisture.

(4) Although the display panel and the polymer film have a multilayer structure, they are thin and have good adhesion to each other and are not peeled off.

(5) Since a flexible and highly transparent laminated film is formed, a flexible element is also possible.
High performance and usefulness.

(6) Despite having a multilayer structure, the film can be easily and continuously produced and has high productivity. The present invention has such many features, and has an advantageous effect that an excellent color electroluminescent display panel having little change in luminance over time and occurrence of black spots and good life characteristics can be formed.

Further, since the present invention does not constitute multi-color or three-primary-color pixels on a single substrate but is based on the lamination of single-color panel units, the manufacturing process is not complicated and the production yield is not complicated. Is high.

As described above, the present invention provides an excellent electroluminescent display panel which is thin, has a large screen and is easy to manufacture, and has great industrial value.

[Brief description of the drawings]

FIG. 1 is a diagram showing a laminated structure of an electroluminescent display panel according to Embodiment 1 of the present invention.

FIG. 2 is a diagram showing a cross-sectional structure of an electroluminescent display panel according to Embodiment 2 of the present invention.

FIG. 3 is a reduced scale diagram showing a thickness ratio of each layer in a cross section of an electroluminescent display panel according to Embodiment 3 of the present invention.

4 (a) to 4 (c) are structural views of a laminated polymer film according to Embodiment 4 of the present invention.

[Explanation of symbols]

 1 to 3 monochromatic light emitting panel unit 4 to 6 striped metal cathode 7 striped transparent anode 8 transparent substrate unit 9 striped transparent anode 10 monochromatic fluorescent organic layer 11 back cover sheet 12 light emitting element 13 adhesive hydrophobicity high Molecular layer 14 Hydrogen bonding polymer layer 15 Adhesive film layer 16 Hydrogen bonding polymer layer 17 Hydrophobic polymer layer

Claims (9)

[Claims] 1. A monochromatic fluorescent light-emitting device having a stripe-shaped transparent anode formed on a transparent substrate unit of a polymer film having a hydrophobic surface and having an electron transporting organic molecule and a hole transporting organic molecule thereon. Forming a striped metal cathode in a direction perpendicular to the striped transparent anode through the organic layer,
The width of the striped metal cathode is set to one of the full color emission widths of the pixel.
/ 2 or less to constitute a single-color light-emitting panel unit, and a plurality of the single-color light-emitting panel units thus configured are laminated and bonded and integrated so that the striped metal cathodes do not overlap each other vertically. An electroluminescent display panel comprising a color or full-color display panel. 2. A transparent substrate unit of a polymer film having a hydrophobic surface, comprising: (a) at least one functional group selected from an amino group, an amide group, a hydroxyl group and a carboxyl group at a concentration of 1 mol% or less. (B) at least two layers of a polymer film comprising an adhesive hydrophobic polymer layer and a hydrogen bonding polymer layer having at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group; A) an intermediate polymer layer consisting of an adhesive film layer containing at least one functional group selected from an amino group, an amide group, a hydroxyl group, and a carboxyl group, the hydrogen bonding polymer layer, a polyolefin, a polyvinylidene chloride; ,PVC,
2. The electroluminescent display panel according to claim 1, comprising at least three polymer films sandwiched between one kind of hydrophobic polymer layer selected from polyacrylonitrile, fluorine-based polymer, liquid crystal polyester, and silicone resin. . 3. The transparent substrate unit is constituted by a multilayer laminated film obtained by laminating the two-layer laminated film, or a multilayer laminated film in which an adhesive film layer of an intermediate layer of the three-layer laminated film is laminated every other layer. The electroluminescent display panel according to claim 2, comprising: 4. The hydrogen-bonding polymer is at least one selected from nylon 11, nylon 12, polyvinyl alcohol, polymethacrylic acid, polymaleic acid, and a block copolymer containing at least one of these as a polymerization component. The electroluminescent display panel according to claim 2, wherein 5. The hydrogen-bonding polymer layer of the polymer film is disposed on the surface of the panel unit which is in contact with the cathode, and the hydrogen-bonding polymer layer is coated in a dry state.
An electroluminescent display panel according to claim 1. 6. The electroluminescent display panel according to claim 2, wherein the end of the laminated panel is sealed by hot melt bonding. 7. The multi-layered panel according to claim 2, wherein the striped metal cathode facing the outside of the outermost monochromatic light-emitting panel unit of the laminated panel is covered with a laminated film in which a metal layer or a ceramic thin film is further inserted in the middle. Electroluminescent display panel. 8. The electroluminescent display panel according to claim 1, wherein a common terminal is formed by connecting stripe-shaped transparent anodes of the same pixel of each monochrome panel unit. 9. A monochromatic fluorescent organic material having a transparent anode formed on a transparent substrate unit of a polymer film having a hydrophobic surface and having an electron transporting organic molecule and a hole transporting organic molecule thereon. A single-color light-emitting panel unit is formed by forming a metal cathode through a layer, and a plurality of the single-color light-emitting panel units are stacked and bonded and integrated so that the metal cathodes do not overlap each other vertically. Electroluminescent display panel.