CN100438120C - Organic electroluminescent panel and its mfg. method - Google Patents
Organic electroluminescent panel and its mfg. method Download PDFInfo
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- CN100438120C CN100438120C CNB2004100306615A CN200410030661A CN100438120C CN 100438120 C CN100438120 C CN 100438120C CN B2004100306615 A CNB2004100306615 A CN B2004100306615A CN 200410030661 A CN200410030661 A CN 200410030661A CN 100438120 C CN100438120 C CN 100438120C
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Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/841—Self-supporting sealing arrangements
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/846—Passivation; Containers; Encapsulations comprising getter material or desiccants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
Organic EL panel and its manufacturing method. An organic EL panel (10) includes a support substrate (11) and an organic EL device (12) which is mounted on the support substrate and formed by interposing an organic layer containing at least a luminescent layer between a pair of electrodes. By bonding a cover (13) onto the support substrate (11) through an adhesive agent (15), an enclosing space is formed by enclosing the organic EL device (12) with the support substrate (11) and the cover (13). A colored desiccating member (14) is provided within the enclosing space on the internal surface of the cover (13) opposite to the support substrate (11). To improve the contrast of display surface and to eliminate an appearance trouble that desiccating member inside panel will be seen from the display side.
Description
Technical field
The present invention relates to a kind of organic electroluminescent (hereinafter referred to as EL:Electroluminescence) panel and manufacture method thereof.
Background technology
Organic EL panel is to be basic structure with the organic EL, this organic EL is arranged on the planar substrates as the unit plane luminous component and forms, this organic EL is by form first electrode on supporting substrate, form the organic layer that comprises the luminescent layer that constitutes by organic compound thereon, form second electrode more thereon and constitute.
Known be exposed to the characteristic of extraneous air state organic EL panel of following time at described organic layer and electrode can deterioration.This is because moisture immerses organic layer and interelectrode interface, hindered the electronics injection, and then generation is as the dim spot of non-luminous region, or cause because of the electrode corrosion phenomenon, for stability and the durability that improves organic EL, making the isolated Sealing Technology of organic EL and extraneous air is must be obligato.About the sealing technology, generally adopt on the supporting substrate that is formed with electrode and organic layer, the seal member that will cover this electrode and organic layer by bonding agent carries out bonding method.
Fig. 1 represents the prior art (with reference to following patent documentation 1) of this organic EL panel.The laminated body 6 that organic EL panel (organic EL) 1 is made of the glass substrate 2 that becomes supporting substrate, ITO electrode 3 and luminous organic material layer 4 and negative electrode 5, the glass capsulation jar 7 that becomes seal member, drying part 8 and enclosed material 9 constitute.
Drying part 8 is for after sealing by glass capsulation jar 7, absorbs the moisture of removing the initial stage moisture that is present in wherein and discharging in time or immerse and is provided with.Particularly, can not before sealing, remove moisture, so can not discharge such initial stage moisture fully by heat treated owing to form a little less than the organic layer heat resistance of organic EL.Therefore, in the panel that uses existing organic EL Material, have in seal member, be provided with this drying part 8.In following patent documentation 1, following record is arranged, as drying part 8, even use can also can be kept the compound of solid state by chemical mode adsorption moisture and moisture absorption, use adhesives this drying part 8 to be installed in the inner face (with the opposed face of glass substrate) of glass capsulation jar 7.
Patent documentation 1 spy opens flat 9-148066 communique
In this existing organic EL panel, adopt the supporting substrate of organic EL (glass substrate 2) side is made transparency carrier, from the luminous mode of this supporting substrate side (bottom surface shoot mode).Can produce following phenomenon in this case, promptly, exterior light incides panel inside (surrounding the seal cavity that forms by supporting substrate and seal member (glass capsulation jar 7)) from supporting substrate etc., then, incident light is at the inner face (face relative with supporting substrate) of seal member or be set at the surface reflection of the drying part on this inner face, penetrates from the display surface of supporting substrate.In addition, though the major part of the light that is sent by organic EL is configured to penetrate from the light-emitting area of supporting substrate, but wherein a part of sometimes light becomes scattered light in panel, identical with above-mentioned exterior light, this scattered light is at the inner face of seal member or be installed in the surface reflection of the drying part on this inner face, penetrates from the display surface of supporting substrate.
Like this, if incide in the panel exterior light and from the surface reflection of the scattered light of organic EL at the inner face or the drying part of seal member, and penetrate from display surface one side, can produce the problem that demonstration contrast that the ejaculation light from organic EL forms reduces.
And, if the light in the surface reflection of the inner face of seal member or drying part penetrates from display surface one side, directly or sideling watching the situation of supporting substrate inferior from display surface so, see the drying part that is configured in panel inside sometimes, produce the problem that outward appearance is caused adverse influence thus.Therefore, if the defective of this outward appearance is considered as substandard products, then need at the incident of exterior light and scattered light prevent design accurately, and must improve the precision of the allocation position etc. of drying part, reduce the problem that product cost increases so exist the rate of finished products of product.
Summary of the invention
The present invention is that problem proposes to address the above problem.That is, the objective of the invention is to, a kind of organic EL panel and manufacture method thereof are provided, improve the contrast of display surface with this, elimination can be seen the open defect of the drying part of panel inside from display surface one side, improves the rate of finished products of product, reduces product cost etc.
In order to achieve the above object, organic EL panel of the present invention and manufacture method thereof have following each independent technique scheme at least.
[technical scheme 1] a kind of organic EL panel, on supporting substrate, be formed on the organic EL that clips the organic layer that contains luminescent layer at least between pair of electrodes, and be bonded with the seal member that makes this organic EL and extraneous air isolated, it is characterized in that, painted drying part is set on the face relative with described supporting substrate of described seal member.
The manufacture method of [technical scheme 6] a kind of organic EL panel, have at the element that is formed on the organic EL that clips the organic layer that contains luminescent layer at least between pair of electrodes on the supporting substrate and form operation, isolated seal member is bonded in the sealing process on the described supporting substrate with making this organic EL and extraneous air, it is characterized in that, before described sealing process, painted drying part is installed on the face relative with described supporting substrate of described seal member.
Description of drawings
Fig. 1 is the key diagram of prior art.
Fig. 2 is the key diagram of the organic EL panel of explanation one embodiment of the present invention.
Fig. 3 is the key diagram of the organic EL panel of explanation other execution mode of the present invention.
Fig. 4 is the key diagram of the organic EL panel of expression other execution mode of the present invention.
Fig. 5 is the key diagram of summary flow process of manufacture method of the organic EL panel of expression embodiments of the present invention.
Among the figure: 10,20,30: organic EL panel; 11: supporting substrate; 12: organic EL; 13,21,31: seal member; 14: drying part; 15: bonding agent; 15A: spacer; 16,21,31,41,51: seal member; 21A, 31A: sealing recess; 31B: recess is installed.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 2～4th, the key diagram of the organic EL panel of one embodiment of the present invention.This organic EL panel 10,20,30 is formed with the organic EL 12 that clips the organic layer that contains luminescent layer at least between pair of electrodes on supporting substrate 11.And, by bonding agent 15 seal member 13,21,31 is bonded on the supporting substrate 11, surround the seal cavity covering organic EL 12 that forms thereby utilize by supporting substrate 11 and seal member 13,21,31, itself and extraneous air are completely cut off.In sealing parts 13,21,31, on the face relative, separate drying part 14 is set with organic EL 12 with supporting substrate 11.
, in the organic EL panel 10 of execution mode shown in Figure 2, use dull and stereotyped seal member 13 herein, form described seal cavity by in bonding agent 15, sneaking into spacer 15A.In the organic EL panel 20 of execution mode shown in Figure 3, the supporting substrate 11 sides formation sealing recess 21A at seal member 21 forms described seal cavity between supporting substrate 11 and sealing recess 21A.In the organic EL panel 30 of execution mode shown in Figure 4, supporting substrate 11 sides at seal member 31 form sealing recess 31A, between supporting substrate 11 and sealing recess 31A, form described seal cavity, and in sealing recess 31A, be formed for installing the installation recess 31B of drying part 14.This installation recess 31B is being stopped up with poisture-penetrability film 32, is used to prevent coming off of drying part 14.
And, in the organic EL panel 10,20,30 of embodiments of the present invention, use the parts that have been colored as the light absorption color as drying part 14.The light absorption color is so long as can absorb the color of the wavelength of visible region and get final product, and preferred black, grey, not good merchantable etc. can evenly absorb the color of all wavelengths of visible light.As an execution mode, use the drying part be painted to black roughly or grey.
This drying part 14 is installed in adhering and sealing parts 13,21,31 backs and is provided with, and is used to absorb and removes initial stage moisture that is present in wherein and the moisture of emitting in time or immersing, as long as have this function, is not particularly limited.As an execution mode, use following moisture absorption moulding bodies, undertaken described painted by dispersed color in this moulding bodies.
In addition, as seal member 13,21,31,, can utilize formation such as metal or resin, but, preferably utilize the glass substrate to form as an execution mode as long as can keep air-tightness.
According to the organic EL panel 10,20,30 of this execution mode, the ejaculation light that is used to self-supporting substrate 11 sides shows, forms display surface on supporting substrate 11.And, since painted drying part 14 be located in the seal member 13,21,31 with supporting substrate 11 facing surfaces on, so painted drying part 14 is absorbed into the exterior light that is mapped in the panel or from the scattered light of organic EL 12, can prevent that these light back that is reflected from penetrating from display surface one side.Thus, can improve the ejaculation light that utilizes organic EL 12 and carry out the contrast of display degree, can eliminate the bad order that to see the drying part 14 that is located at panel inside from supporting substrate 11 sides simultaneously.
In order to prevent reflection at seal member 13,21,31 inner faces, also can consider to apply light absorption coating at the seal member inner face, but according to this method, additionally need to apply the operation of seal member inner face, because coated coating produces the deterioration factor (moisture or organic material) of organic EL 12 in seal cavity, cause reducing the organic EL unfavorable condition in 12 life-spans simultaneously.If according to the embodiment of the present invention, by drying part 14 is painted, can not influence the operation number of manufacturing process, also can in seal cavity, not produce the deterioration factor of organic EL 12.
And, particularly, can evenly absorb all wavelengths of the visible region of above-mentioned exterior light or scattered light by the color of drying part 14 being made the black or the grey of high visible absorptivity, can bring into play above-mentioned effect more reliably.Like this, particularly in carrying out the colored organic EL panel that shows, can effectively improve the contrast and the bad order of this display surface.
And, utilizing the moisture absorption moulding bodies to form drying part 14, dispersed color carries out in the described painted execution mode therein, no matter the kind of drying part 14 or material, all pigmentable becomes needed color.Like this, can under the situation of the moisture absorbing that does not influence drying part 14, guarantee above-mentioned effect.
And,, on the basis of above-mentioned effect, can obtain following effect in that seal member 13,21,31 is made in the execution mode of glass substrate.Promptly, the first, owing to utilize and the supporting substrate 11 general glass substrate identical materials formation seal members 13,21,31 that use, so, supporting substrate 11 is identical with the thermal coefficient of expansion of seal member 13,21,31, thereby can improve the mechanical strength of panel with respect to variations in temperature.The second, the surface smoothing of glass substrate is higher than the seal member of metallic etc., thus be difficult to form the gap at interface place with bonding agent 15, thus can improve bonding force.Therefore, moisture etc. are difficult to immerse from the outside, thereby can improve sealing.The 3rd, owing to compare, form seal member 13,21,31 by utilizing the glass substrate with the situation that adopts the metallic seal member, can make panel thin-walled property and lightweight.
Below, the manufacture method of the organic EL panel that embodiments of the present invention relate to is described.Fig. 5 is the key diagram of its summary flow process of expression.At first, form operation S1A as element, the organic EL 12 of first electrode, organic layer, second electrode that formed lamination on supporting substrate 11 is formed on the organic EL 12 that clips the organic layer that contains luminescent layer at least between pair of electrodes.Herein, the formation of organic EL adopts general well-known film formation process of using and pattern to form operation.
On the other hand, as drying part installation procedure S1B, drying part 14 is installed on the seal member 13,21,31.At this drying part installation procedure S1B, be ready in advance through painted drying parts 14 such as dispersing of pigments, in the same manner it is installed in the inner face (face relative) of seal member 13,21,31 with common drying part installation procedure with supporting substrate 11.
As sealing process S2, by apply bonding agent 15 on the bonding plane of the periphery of supporting substrate 11 or seal member 13,21,31, the adhesive seal parts 13,21,31 on supporting substrate 11, and organic EL 12 is sealed.Then, pass through suitable inspection operation S3 as required, obtain the organic EL panel 10,20,30 of execution mode.
According to the manufacture method of this execution mode, method for producing panel is not in the past done any change, according to noted earlier, just can obtain high-contrast and not have the organic EL panel 10,20,30 of bad order.
Below, the organic EL panel that embodiments of the present invention are related to and the feature of manufacture method thereof are summarized as follows.
First, a kind of organic EL panel, on supporting substrate, be formed on the organic EL that clips the organic layer that contains luminescent layer at least between pair of electrodes, and be bonded with the seal member that makes this organic EL and extraneous air isolated, it is characterized in that, painted drying part is set on the face relative with described supporting substrate of described seal member.The manufacture method that also relates to a kind of organic EL panel in addition, have at the element that is formed on the organic EL that clips the organic layer that contains luminescent layer at least between pair of electrodes on the supporting substrate and form operation, isolated seal member is bonded in the sealing process on the described supporting substrate with making this organic EL and extraneous air, it is characterized in that, before described sealing process, painted drying part is installed on the face relative with described supporting substrate of described seal member.
Like this, painted drying part is absorbed into the exterior light that is mapped in the panel or from the scattered light of organic EL, can prevent to penetrate from display surface one side after these light are reflected, can improve and be used to carry out the contrast of display degree, can eliminate the bad order that to see the drying part that is located at panel inside from the supporting substrate side simultaneously from the ejaculation light of organic EL element.And, can not influence the accuracy of manufacture and obtain this advantage, so can reduce the substandard products of low contrast or bad order simply, improve the rate of finished products of product, reduce product cost.In addition, manufacture method of the present invention need not be done any change to manufacture method in the past, just can obtain the above-mentioned organic EL panel with effect of the present invention.
The second, in above-mentioned organic EL panel and manufacture method thereof, it is characterized in that above-mentioned drying part is painted to the light absorption color, particularly be painted to roughly black or roughly grey.Like this, on the basis of above-mentioned feature, all wavelengths of the visible region of above-mentioned exterior light or scattered light can be absorbed equably, above-mentioned effect can be implemented more reliably.And, particularly in carrying out the colored organic EL panel that shows, can effectively improve the contrast and the bad order of this display surface.
The 3rd, in above-mentioned organic EL panel and manufacture method thereof, it is characterized in that described drying part is the moisture absorption moulding bodies, undertaken described painted by dispersed color in this moisture absorption moulding bodies.Like this, on the basis of above-mentioned feature, no matter the kind of drying part or material, all pigmentable becomes needed color, can obtain above-mentioned effect under the situation of the moisture absorbing that does not influence drying part.
The 4th, in above-mentioned organic EL panel and manufacture method thereof, it is characterized in that described seal member is the glass substrate.Like this, on the basis of above-mentioned feature, can obtain the mechanical strength height of relative temperature variation, the thin-walled property and the light-weighted organic EL panel of favorable sealing property.
[embodiment]
Below, as embodiments of the invention, enumerate the concrete example relevant with the component parts of above-mentioned execution mode.
[drying part 14] is as drying part 14, can use physical dryness agent (zeolite, silica gel, carbon, carbon nano-tube etc.), chemical hygroscopic agent described later, metal-organic complex is dissolved into the monomers such as drier of petroleum-type solvent (toluene, dimethylbenzene, aliphat organic solvent etc.), also can use moisture absorption moulding bodies shown below.
Said moisture absorption moulding bodies is the moulding bodies that has disperseed hygroscopic agent in resinous principle (adhesive).As hygroscopic agent, get final product so long as have at least the material of function that can adsorption moisture, even but especially preferably can also can keep the compound of solid state by chemical mode adsorption moisture and moisture absorption.As this compound, for example can enumerate the inorganic acid salt of metal oxide, metal and acylate etc., but especially preferably use at least a of alkaline-earth metals oxide and sulfate.As alkaline-earth metals oxide, for example can enumerate calcium oxide (CaO), barium monoxide (BaO), magnesium oxide (MgO) etc.As sulfate, for example can enumerate lithium sulfate (Li
2SO
4), sodium sulphate (Na
2SO
4), calcium sulfate (CaSO
4), magnesium sulfate (MgSO
4), cobaltous sulfate (CoSO
4), gallium sulfate (Ga
2(SO
4)
3), titanium sulfate (Ti (SO
4)
2), nickelous sulfate (NiSO
4) etc.Other also can use has hygroscopic organic material as hygroscopic agent.
On the other hand,,, just do not do special qualification, preferably use the high material of gas permeability (being shielding low material, particularly resin permeability) as long as do not hinder the moisture removal effect of hygroscopic agent as resinous principle (adhesive).As this material, for example can enumerate TPO, polyacrylic, polypropylene nitrile, polyamide-based, polyesters, epoxies, macromolecular material such as polycarbonate-based.Wherein, preferred polyolefm class in the present invention.Particularly, can enumerate polyethylene, polypropylene, polybutadiene, poly-isoprene etc., and their copolymer etc.
The amount of hygroscopic agent and resinous principle can suitably be set according to their kind etc., but when usually the total content of hygroscopic agent and resinous principle being made as 100 weight %, the about 30 weight % of hygroscopic agent～85 weight %, the about 70 weight % of resinous principle～15 weight % get final product.The preferred about 40 weight % of hygroscopic agent～80 weight %, the about 60 weight % of resinous principle～20 weight %, the about 50 weight % of hygroscopic agent～70 weight % most preferably, the about 50 weight % of resinous principle～30 weight %.
The moisture absorption moulding bodies can be by evenly mixing described each composition, is molded as required form and obtains.During this situation, preferred hygroscopic agent, adsorbent etc. mix after the intensive drying in advance again.In addition, when mixing, can add the thermosetting molten condition as required with resinous principle.
As embodiments of the invention, the moisture absorption moulding bodies preferably carries out molding to the mixture that is made of hygroscopic agent and resinous principle and the material that obtains.Promptly, use and do not comprise the ternary made moisture absorption of solvent grade in an imperial examination moulding bodies, can avoid thus (for example remaining in the drawback brought in the moulding bodies because of these the 3rd compositions, remaining solvent adsorbed by hygroscopic agent, reduce the performance of adsorbent, or owing to the remaining solvent drawback of in seal member, volatilizing and being caused in time).
When on seal member 13,21,31, installing, so long as the method that can be fixed on reliably in the seal member is not just done special qualification, for example, can enumerate the method for utilizing known adhesive, bonding agent bonding moisture absorption moulding bodies such as (preferred no-solvent type bonding agents) and seal member, moisture absorption moulding bodies hot melt is overlayed on method on the seal member, utilize fixed parts such as screw moulding bodies to be fixed on method on the seal member etc.
The pigment of dispersion and the generic of mineral-type and organic class have nothing to do though be used for painted, and suitable selection can not discharged the material of the factor that makes the organic EL deterioration.
[seal member] seal member 13,21,31 preferably forms with glass (soda-lime glass or non-alkali salt glass) system substrate.Described sealing recess 21A, 31A for example form by implementing processing such as press molding, etching, blasting treatment.
[bonding agent] bonding agent 15 uses bonding agents such as thermohardening type, chemosetting type (mixing of two liquid), light (ultraviolet ray) curing type, and its material can use acrylic resin, epoxy resin, polyester, polyolefin etc.Especially preferably use ultraviolet hardening epoxy resin.In this bonding agent, the particle diameter that mixes an amount of (about 0.1 weight %～0.5 weight %) is the spacer (preferred glass or plastic spacer) of 1～100 μ m, makes then with dispenser etc. to apply.
[organic EL] is formed on the supporting substrate 11, and the example that clips the concrete structure of organic EL 12 of the organic layer that contains luminescent layer at least and material between pair of electrodes is as described below.
(a) supporting substrate:
As supporting substrate 11, be preferably tabular or laminar with transparency, its material can be used glass or plastics etc.
(b) electrode
In the mode (bottom surface shoot mode) from supporting substrate 11 sides ejaculation light is under the situation of prerequisite, and the electrode of supporting substrate 11 sides is made as the anode that is made of transparency electrode, the opposing party's electrode is made as the negative electrode that is made of metal electrode.As the anode material that can be suitable for, can use ITO, ZnO etc., form by film build methods such as evaporation, sputters.As negative electrode, use the little metal of work function, metal oxide, metal fluoride, alloy etc., specifically can use single layer structure, the LiO of Al, In, Mg etc.
2The laminated construction of/Al etc. forms by film build methods such as evaporation, sputters.
(c) organic layer
Organic layer is anode at the electrode with supporting substrate 11 sides, is under the situation of negative electrode with the opposing party's electrode, it generally is the laminated construction of hole transporting layer/luminescent layer/electron supplying layer, not only multilayer laminated luminescent layer, hole transporting layer, the electron supplying layer of one deck also can be set separately, the any one deck of hole transporting layer and electron supplying layer can also be omitted, also only remaining luminescent layer can be two-layerly all omitted.As organic layer, can insert the organic function layer of hole injection layer, electron injecting layer, hole screen, electronic shield layer etc. according to purposes.
The material of organic layer can suitably be selected according to the purposes of organic EL 12.Below list example, but be not limited thereto.
As hole transporting layer, as long as have the function of high hole mobility, its material can select to use the arbitrary substance in the known in the past compound.As a specific example, can use haematoporphyrin compounds, 4 such as copper phthalocyanine blue, 4 '-two [N-(1-naphthyl)-N-phenylamino]-biphenyl aromatic nitrile bases such as (NPB), 4-(two pairs of toluidinos)-4 '-organic materials such as diphenyl ethene compounds, triazole derivative or styryl amines such as [4-(two pairs of toluidinos) styryl] talan.In addition, also can use and be dispersed with low molecular cavity conveying in the macromolecule such as Merlon and disperse the class material with the macromolecule of organic material.
Luminescent layer can use known luminescent material, as a specific example, can use 4,4 '-two (2,2 '-xenyl vinyl)-biphenyl aromatic series two methylidyne compounds, 1 such as (DPVBi), styrene benzene compound, 3-(4-xenyl)-4-phenyl-5-2-methyl-2-phenylpropane base-1,2 such as two (2-methyl styrene base) benzene of 4-, fluorescence organic material, (oxine) aluminium complex (Alq of 4-triazole triazole derivatives such as (TAZ), anthraquinone derivative, fluorenone derivatives etc.
3) etc. can utilize the organic material (special table 2001-520450) of fluorescence radiation in the triplet excitons such as macromolecular material, platinum complex compound or iridium complex of fluorescence organo-metallic compound, p-phenylene vinylene (PPV) class, poly-fluorenes class, polyvinylcarbazole (PVK) class etc.Luminescent material can be the material that only constitutes with above-mentioned luminescent material, also can contain hole transporting material, electron transport materials, additive (donor, acceptor etc.) or photism alloy etc.In addition, these materials also can be distributed in macromolecular material or the inorganic material.
As long as electron supplying layer has the function that the negative electrode injected electrons is delivered to luminescent layer, its material can select to use the arbitrary substance in the known in the past compound.As a specific example, can use the metal complex, metal phthalocyanine indigo plant etc. of organic material, the oxine derivative of fluorenone derivatives that nitro replaces, anthracene quinine methane Derivatives etc.
Above-mentioned hole transporting layer, luminescent layer, electron supplying layer can be used wet process or dry processes formation such as vapour deposition method, laser transfer method such as cladding processes such as spin coating method, infusion process, gunite, silk screen print method.
[variety of way of organic EL panel] organic EL 12 can be the organic EL of single structure, also can be to have required patterning, constitutes the element of a plurality of pixels.
If the latter's situation, its display mode can be monochromatic luminous, also can be above multicolor luminous of 2 looks or 2 looks, particularly in order to realize multicolor luminous organic EL panel, can constitute with the following methods, form 2 looks of the mode that comprises 3 kinds of light emitting functional layer that are used to form corresponding RGB or the mode (branch is coated with mode) of the light emitting functional layer more than 2 looks, mode (the CF mode of monochromatic light emitting functional layer such as white or blueness combination colour filter or the color conversion layer that forms by fluorescent material, the CCM mode), by realize multicolor luminous mode (photobleaching mode) etc. to the light-emitting zone of monochromatic light emitting functional layer irradiation electromagnetic wave etc.In addition, the type of drive of organic EL can be any in passive drive mode or the active type of drive.
Claims (6)
1. organic electroluminescence panel, on supporting substrate, be formed with the organic electroluminescent device that between pair of electrodes, clips the organic layer that contains luminescent layer at least, and be bonded with the seal member that makes this organic electroluminescent device and extraneous air isolated, it is characterized in that, painted drying part is set on the face relative with described supporting substrate of described seal member, and described drying part is painted to black, grey or the not good merchantable of light absorption.
2. organic electroluminescence panel according to claim 1 is characterized in that, described drying part is the moisture absorption moulding bodies, is undertaken described painted by dispersed color in this moisture absorption moulding bodies.
3. organic electroluminescence panel, on supporting substrate, be formed with the organic electroluminescent device that between pair of electrodes, clips the organic layer that contains luminescent layer at least, and be bonded with the glass substrate that makes this organic electroluminescent device and extraneous air isolated as seal member, it is characterized in that, painted drying part is set on the face relative with described supporting substrate of described seal member, described drying part is painted to the black of light absorption, grey or not good merchantable, described drying part is the moisture absorption moulding bodies, is undertaken described painted by dispersed color in this moisture absorption moulding bodies.
4. the manufacture method of an organic electroluminescence panel, have at the element that is formed on the organic electroluminescent device that clips the organic layer that contains luminescent layer at least between pair of electrodes on the supporting substrate and form operation, isolated seal member is bonded in the sealing process on the described supporting substrate with making this organic electroluminescent device and extraneous air, it is characterized in that, before described sealing process, painted drying part is installed on the face relative with described supporting substrate of described seal member, and described drying part is painted to black, grey or the not good merchantable of light absorption.
5. the manufacture method of organic electroluminescence panel according to claim 4 is characterized in that, described drying part is the moisture absorption moulding bodies, is undertaken described painted by dispersed color in this moisture absorption moulding bodies.
6. the manufacture method of an organic electroluminescence panel, have at the element that is formed on the organic electroluminescent device that clips the organic layer that contains luminescent layer at least between pair of electrodes on the supporting substrate and form operation, with the sealing process of glass base plate bonding on described supporting substrate that this organic electroluminescent device and extraneous air will be completely cut off as seal member, it is characterized in that, before described sealing process, painted drying part is installed on the face relative with described supporting substrate of described seal member, described drying part is painted to the black of light absorption, grey or not good merchantable, described drying part is the moisture absorption moulding bodies, is undertaken described painted by dispersed color in this moisture absorption moulding bodies.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP104242/2003 | 2003-04-08 | ||
| JP2003104242A JP2004311246A (en) | 2003-04-08 | 2003-04-08 | Organic el panel and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536939A CN1536939A (en) | 2004-10-13 |
| CN100438120C true CN100438120C (en) | 2008-11-26 |
Family
ID=33467123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100306615A Expired - Lifetime CN100438120C (en) | 2003-04-08 | 2004-04-02 | Organic electroluminescent panel and its mfg. method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2004311246A (en) |
| KR (1) | KR20040087937A (en) |
| CN (1) | CN100438120C (en) |
| TW (1) | TWI249366B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004006628A1 (en) | 2002-07-08 | 2004-01-15 | Dynic Corporation | Hygroscopic molding |
| KR100670328B1 (en) | 2005-03-30 | 2007-01-16 | 삼성에스디아이 주식회사 | Organic light-emitting display and manufacturing method thereof |
| KR101222968B1 (en) * | 2006-04-25 | 2013-01-17 | 엘지디스플레이 주식회사 | Organic el display device and method for fabricating the same |
| KR20120079319A (en) * | 2011-01-04 | 2012-07-12 | 삼성모바일디스플레이주식회사 | Plat panel display apparatus and organic light emitting display apparatus |
| KR102370715B1 (en) * | 2014-12-29 | 2022-03-07 | 엘지디스플레이 주식회사 | Organic Light Emitting Diode Display Having Quantum Dot |
| GB2538083A (en) * | 2015-05-06 | 2016-11-09 | Cambridge Display Tech Ltd | High contrast light emitting device |
| CN107170906B (en) * | 2017-07-19 | 2020-03-24 | 京东方科技集团股份有限公司 | Frame sealing adhesive structure, display panel and display device |
| US11411198B2 (en) * | 2019-06-18 | 2022-08-09 | Innolux Corporation | Electronic device |
| CN110429206B (en) * | 2019-08-07 | 2021-11-23 | 京东方科技集团股份有限公司 | Packaging cover plate, display device, display panel and packaging method of display panel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0500382A2 (en) * | 1991-02-21 | 1992-08-26 | Sharp Kabushiki Kaisha | Moisture proof thin film electroluminescent panel |
| CN1385053A (en) * | 1999-09-03 | 2002-12-11 | 优尼爱克斯公司 | Encapsulation of organic electronic devices |
| JP2003017242A (en) * | 2001-07-03 | 2003-01-17 | Saes Getters Japan Co Ltd | Organic electroluminescent element |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6196695A (en) * | 1984-10-18 | 1986-05-15 | 松下電器産業株式会社 | El panel |
| JPS63105495A (en) * | 1986-10-22 | 1988-05-10 | アルプス電気株式会社 | Thin film el panel |
| JPH02197071A (en) * | 1989-01-26 | 1990-08-03 | Sharp Corp | Thin film el panel |
| DE19959957A1 (en) * | 1999-12-13 | 2001-06-21 | Sued Chemie Ag | Platelet-shaped compacts |
| JP3409764B2 (en) * | 1999-12-28 | 2003-05-26 | 日本電気株式会社 | Manufacturing method of organic EL display panel |
-
2003
- 2003-04-08 JP JP2003104242A patent/JP2004311246A/en active Pending
-
2004
- 2004-03-30 TW TW093108695A patent/TWI249366B/en active
- 2004-04-02 CN CNB2004100306615A patent/CN100438120C/en not_active Expired - Lifetime
- 2004-04-08 KR KR1020040023955A patent/KR20040087937A/en not_active Application Discontinuation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0500382A2 (en) * | 1991-02-21 | 1992-08-26 | Sharp Kabushiki Kaisha | Moisture proof thin film electroluminescent panel |
| CN1385053A (en) * | 1999-09-03 | 2002-12-11 | 优尼爱克斯公司 | Encapsulation of organic electronic devices |
| JP2003017242A (en) * | 2001-07-03 | 2003-01-17 | Saes Getters Japan Co Ltd | Organic electroluminescent element |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200421917A (en) | 2004-10-16 |
| KR20040087937A (en) | 2004-10-15 |
| TWI249366B (en) | 2006-02-11 |
| JP2004311246A (en) | 2004-11-04 |
| CN1536939A (en) | 2004-10-13 |
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