CN1541031A - Organic electroluminessence panel and mfg. method thereof - Google Patents
Organic electroluminessence panel and mfg. method thereof Download PDFInfo
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- CN1541031A CN1541031A CNA2004100310875A CN200410031087A CN1541031A CN 1541031 A CN1541031 A CN 1541031A CN A2004100310875 A CNA2004100310875 A CN A2004100310875A CN 200410031087 A CN200410031087 A CN 200410031087A CN 1541031 A CN1541031 A CN 1541031A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K7/00—Watering equipment for stock or game
- A01K7/02—Automatic devices ; Medication dispensers
- A01K7/025—Water tanks
Abstract
To prevent deterioration of display performance due to the fact that external incident light entering in a panel is reflected by the irregular reflection part in the panel. An optical filter 18 comprising a circularly polarizing plate is provided in one face of a supporting substrate 11. An organic EL device having a first electrode 12 and a second electrode 14 at least one of which is a transparent electrode and an organic layer 13 sandwiched between the first and second electrodes and including at least a luminous layer on the other face of the supporting substrate 11 is formed. A sealing member 15 wherein a sealing recessed part 15A for sealing the organic EL device is formed is adhered to the other face of the supporting substrate 11 with an adhesive 16. Although a slant face a in the sealing recessed part 15A is a rough face to form an irregular reflection part, an irregular reflection prevention means is formed by forming an extended part 14A of the second electrode 14 on the other face of the supporting substrate 11 to cover the slant face a.
Description
Technical field
The present invention relates to a kind of organic electroluminescent (Electroluminescence abbreviates EL below as) panel and manufacture method thereof.
Background technology
Patent documentation 1: the spy opens flat 8-321381 communique
Patent documentation 2: the spy opens flat 9-127885 communique
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.
In this organic EL, side in described first electrode, second electrode is made the transparency electrode that constitutes by ITO etc., simultaneously the opposing party is made the light reflective metal electrode that constitutes by Al, Mg etc., obtain the light that sends by luminescent layer etc. from the transparency electrode side.Can consider following mode: first electrode on the transparent supporting substrate is made transparency electrode, obtain bottom-emission (bottom emission) mode of light from the supporting substrate side; First electrode on the supporting substrate is made metal electrode, simultaneously second electrode is made transparency electrode, obtain top light emitting (top emission) mode of light from the second electrode side.
In this organic EL, effectively penetrate from the transparency electrode side in order to make the light that sends by luminescent layer etc., making the metal electrode that is oppositely arranged with transparency electrode is that high reflectance is to improve luminosity.; because for incide the light in the panel from the outside; metal electrode also becomes the speculum of high reflectance and reflects this light; therefore produce following problem: because this outside incident light; mirror extraneous scenery when luminous non-; and contrast reduces or is in the state that can not show black etc. when luminous, and display performance reduces.
As the effective countermeasure of this problem of processing, the technical scheme of record in the patent documentation 1,2 has been proposed.This technical scheme is that the optical filter that is made of circular polarizing disk is set on the light emergence face of organic EL panel.Like this, though become the right side or left light from outside incident and the light by circular polarizing disk, but when reflecting this circularly polarized light by the metal electrode in the panel, the circular polarization direction of light is overturn, so ended by circular polarizing disk by the light that the metal electrode in the panel reflects again from outside incident, can not inject to the outside.
On the other hand, known when described organic layer and electrodes exposed are in outer gas, the characteristic of organic EL panel can deterioration.This is owing to interface that moisture immerses organic layer and electrode has hindered the electronics injection, produced non-luminous region or the electrode corrosion phenomenon causes, for the stability and the durability that improve organic EL, the Sealing Technology that makes organic EL isolate from outer gas is absolutely necessary.About the sealing technology, generally adopt following method: on the supporting substrate that is formed with electrode and organic layer, paste the seal member that covers this electrode and organic layer by bonding agent.
Fig. 1 is a key diagram of representing the organic EL panel with seal member in the past.In the organic EL panel 1, on the one side of supporting substrate 2, be formed with organic EL, this organic EL is first electrode 3 that will be made of transparency electrode, the organic layer 4 that contains luminescent layer and is laminated by second electrode 5 that metal electrode constitutes that this organic EL is sealed by the seal member 7 on the one side that sticks on supporting substrate 2 by bonding agent 6.In addition, the another side of supporting substrate 2 is provided with the optical filter 8 that is made of aforesaid circular polarizing disk.
Herein, use the glass substrate as seal member more than 7, the situation that the also useful bonding agent 6 that comprises spacer is pasted smooth glass substrate, but generally as shown in Figure 1, one side side at seal member 7 forms the seal cavity that is formed by sealing recess 7A, and the bottom surface of sealing recess 7A is provided with drier 9.This sealing recess 7A is normally by utilizing grinding-material to carry out blasting treatment or use soup to carry out that etch processes forms, but in this way, the inclined-plane a of sealing recess 7A becomes matsurface, has formed diffuse reflection portion at this place.
In this organic EL 1 in the past, from the light L of outside
01When inciding in the panel by optical filter 8, become the right side or left to circularly polarized light L
02, its by second electrode, 5 direct reflections that constitute by metal electrode after, become the opposite circularly polarized light L of direction
03Therefore, as previously described, ended by optical filter 8, can not inject to the outside from outside incident and by the light after 5 reflections of second electrode.But, as previously described, if in panel, be formed with diffuse reflection portion, even then from the light L of outside
11By optical filter 8 incide become in the panel right side or left to circularly polarized light L
12, also can be reflected the light L that become the plane of polarization disorder by diffuse reflection portion
13So, produce reverberation L by optical filter 8
14, produce the position that optical filter 8 can not effectively work partly.
Therefore, produce following problem: when luminous, cause contrast to reduce, and produce the phenomenon that outside scenery mirrored when luminous and make the display performance deterioration non-at ejaculation reverberation such as the periphery of panel.
Summary of the invention
The present invention will address this is that as a problem.That is, the objective of the invention is to, prevent owing to the outside incident light that incides in the panel is caused the display performance deterioration by the reflection of the diffuse reflection portion in the panel.
In order to achieve the above object, the present invention possesses the formation of following independent claims at least.
[claim 1] a kind of organic EL panel, the optical filter that is made of circular polarizing disk is set on the one side of supporting substrate, on the another side of described supporting substrate, form organic EL, described organic EL have first electrode and second electrode and be clipped in this first, organic layer between second electrode, described first electrode and at least one side of second electrode are made of transparency electrode, described organic layer contains luminescent layer at least, on described another side, pasting the seal member that is formed with the sealing recess that is used to seal described organic EL, it is characterized in that, be provided with the outside incident light that prevents to incide in the panel and prevented stop element by the diffuse reflection of the reflection of the diffuse reflection portion in the panel.
The manufacture method of [claim 6] a kind of organic EL panel, the optical filter that is made of circular polarizing disk is set on the one side of supporting substrate, on the another side of described supporting substrate, form organic EL, described organic EL have first electrode and second electrode and be clipped in this first, organic layer between second electrode, described first electrode and at least one side of second electrode are made of transparency electrode, described organic layer contains luminescent layer at least, pasting the seal member that is formed with the sealing recess that is used to seal described organic EL on the described another side, it is characterized in that, be provided with the outside incident light that prevents to incide in the panel and prevented stop element by the diffuse reflection of the reflection of the diffuse reflection portion in the panel.
Description of drawings
Fig. 1 is the key diagram of prior art.
Fig. 2 is the key diagram of the organic EL panel that relates to of explanation embodiments of the present invention.
Fig. 3 is the key diagram of the organic EL panel that relates to of explanation another embodiment of the present invention.
Fig. 4 is the key diagram of the organic EL panel that relates to of an explanation execution mode more of the present invention.
Symbol description
10,20,30: organic EL panel; 11: supporting substrate; 12: the first electrodes; 13: organic layer; 14: the second electrodes; 14A: extension; 15: seal member; 15A seals recess; 15B: notch; 16: bonding agent; 17: drier; 18: optical filter.
Embodiment
Below, with reference to the description of drawings embodiments of the present invention.Fig. 2 is the key diagram of the organic EL panel that relates to of expression one embodiment of the present invention.At first, the basic structure of the organic EL panel 10 that embodiments of the present invention relate to is described, the optical filter 18 that is made of circular polarizing disk is set on the one side of supporting substrate 11, on the another side of described supporting substrate 11, form organic EL, described organic EL have first electrode 12 and second electrode 14 and be clipped in this first, organic layer 13 between second electrode, described first electrode 12 and second electrode, 14 at least one sides are made of transparency electrode, described organic layer 13 contains luminescent layer at least, utilizes bonding agent 16 seal member 15 that is formed with the sealing recess 15A that is used to seal described organic EL to be sticked on the another side of supporting substrate 11.In execution mode shown below, be that the bottom-emission mode of light emergence face is an example with supporting substrate 11 sides, but the present invention is not limited to this.
And, on the bottom surface of the sealing recess 15A that forms on the seal member 15, drier 17 being installed, the inclined-plane a of sealing recess 15A is a matsurface, forms diffuse reflection portion.Sometimes this diffuse reflection portion is not only by described inclined-plane a and forms, but is formed in the panel in various forming processes.Each following execution mode has the outside incident light that prevents to incide in the panel by the anti-stop element of diffuse reflection of this diffuse reflection portion reflection, like this, the situation that can not occur that outside incident light is reflected by diffuse reflection portion and penetrate by optical filter 18, can on whole of supporting substrate, guarantee the function of optical filter 18, prevent the display performance deterioration of organic EL panel.
The feature of each execution mode below is described.In the following description, be that example describes with the diffuse reflection portion that forms by inclined-plane a, but also can carry out same treatment other diffuse reflection portions.In execution mode shown in Figure 2, the extension 14A of second electrode 14 that is made of the light reflective electrode is set on the another side of supporting substrate 11, make its inclined-plane a that hides sealing recess 15A, form the anti-stop element of diffuse reflection.
In the execution mode of Fig. 2, be provided with the extension of second electrode 14, but the extension of first electrode 12 that is made of transparency electrode also can be set, and stacked in its surface light reflective material.
According to these execution modes, from the light L of outside
21By optical filter 18 incide become in the panel right side or left to circularly polarized light L
22, but can not arrive the diffuse reflection portion that forms by inclined-plane a, but all reflected by the reflecting surface of second electrode, 14 grades.Therefore, circularly polarized light L
22Become reciprocal circularly polarized light L by being reflected by the reflecting surface of second electrode, 14 grades
23, owing to it is ended by optical filter 18, so reverberation can not inject to the outside.
Fig. 3 is the key diagram of the organic EL panel that relates to of expression another embodiment of the present invention.Give same-sign to same section, omit the explanation of repeating part.The basic structure of the organic EL panel 20 that this execution mode relates to is identical with aforesaid organic EL 10, but as the anti-stop element of diffuse reflection, does not deal with problems towards the light emitting side by making inclined-plane a with coming essence.That is, for the inclined-plane a that makes sealing recess 15A not towards supporting substrate 11 sides, on the bottom surface of sealing recess 15A, form notch 15B, the angle that makes inclined-plane a and bottom surface thus is not right angle but acute angle.
Like this, from the light L of outside
31Also by optical filter 18 incide become in the panel right side or left to circularly polarized light L
32, but the diffuse reflection portion that it can not formed by inclined-plane a reflection, but the reflection of the reflecting surface of the bottom surface of sealed recess 15A or second electrode 14.Therefore, circularly polarized light L
32Reflections such as bottom surface by sealed recess 15A become reciprocal circularly polarized light L
33, owing to it is ended by optical filter 18, so reverberation can not inject to the outside.
Fig. 4 is the key diagram of the organic EL panel that relates to of an expression execution mode more of the present invention.Give same-sign to same section, omit the explanation of repeating part.The basic structure of the organic EL panel 30 that this execution mode relates to is identical with aforesaid organic EL 10,20, but, come to deal with problems more at all by on the surface of the supporting substrate 11 relative, forming light shielding part 31 with the diffuse reflection portion that forms by inclined-plane a as the anti-stop element of diffuse reflection.Promptly, light shielding part 31 is set to be made from the light of outside not towards the inclined-plane a incident of sealing recess 15A, like this, can not incide by optical filter 18 from the light of outside yet and to arrive the diffuse reflection portion that is formed by inclined-plane a in the panel, diffusing of panel inside can not inject to the outside.Light shielding part 31 can form with encapsulant, uses the parts be coloured to the light absorption color, forms but preferably utilize the nearly black of all wavelengths that can evenly absorb the visible region or nearly grey to wait.
The following describes the manufacture method of this organic EL 10,20,30.At first, form operation, on supporting substrate 11, form first electrode 12 stacked, the organic EL of organic layer 13, second electrode 14, be formed on the organic EL that clips the organic layer 13 that contains luminescent layer at least between the pair of electrodes as element.Adopt general well-known film formation process that adopts and pattern to form operation in the formation of organic EL 12 herein.In addition, on the other hand, wait and form sealing recess 15A, drier 17 is installed on the bottom surface of sealing recess 15A by seal member 15 being carried out blasting treatment or etch processes.Then, utilize bonding agent 16 that seal member 15 is sticked on the supporting substrate 11, form panel.
In such manufacturing process, in execution mode shown in Figure 2, the operation of film forming second electrode 14 in element formation operation, forming aforesaid extension 14A (is provided with under the situation of extension on first electrode 12, when forming first electrode 12, form extension), in execution mode shown in Figure 3,, when processing sealing recess 15A, form aforesaid notch 15B in the formation operation of seal member 15.And in execution mode shown in Figure 4, after the formation operation of supporting substrate 11 or final stickup operation, on the surface of supporting substrate 11, form aforesaid light shielding part 31.
Below, be described more specifically each component parts and the method for producing panel of aforesaid organic EL panel 10,20,30.
(a) supporting substrate
As supporting substrate 11, preferably have the tabular or the film like article of the transparency, material can be with glass or plastics etc.
(b) optical filter
As an example of optical filter 18, constitute by linear polarizer and 1/4 λ polarizer, 1/4 λ polarizer forms by pasting a plurality of birefringent plates, so that obtain the phase difference of 1/4 wavelength in wide wave-length coverage.And, have the polarizing axis that polarizing axis with respect to linear polarizer becomes 45 degree or the crossing angle equal with it by making 1/4 λ polarizer, make incident light become the right side or left light by this optical filter 18 from the outside.
(c) electrode
In the mode (bottom-emission mode) from supporting substrate 11 sides ejaculation light is under the situation of prerequisite, can make the anode that constitutes by transparency electrode to first electrode 12, second electrode 14 is made the negative electrode that is made of the light reflective metal electrode, and all it doesn't matter (anode uses the work function material higher than negative electrode to constitute) but basically which side is made as male or female.
Anode material as being suitable for can use indium oxide (In
2O
3), metal film such as transparency electrode of ITO, IZO etc., Cr that work function is higher than negative electrode, Mo, Ni, Pt, 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 stepped construction of/Al etc. forms with film build methods such as evaporation, sputters.In addition, except that metal, can also use polyaniline that has mixed or noncrystalline semiconductors such as polyphenylacetylene, the Cr that has mixed
2O
3, NiO, Mn
2O
5Deng oxide.Under the situation of first, second electrode by transparent material formation, also can be formed on the structure that the electrode side opposite with the light emitting side is provided with reflectance coating.
And first electrode 12 is being made transparency electrode, and form under the situation of extension (not shown) with it, can on extension, form reflecting surface by silver color film such as stacked Cr.
(d) organic layer
Be anode with first electrode 12, be under the situation of negative electrode with second electrode 14, organic layer 13 generally is the stepped construction of hole transmission layer/luminescent layer/electron transfer layer, but not only multilayer laminated luminescent layer, hole transmission layer, the electron transfer layer of one deck can be set separately also, can also omit the wherein one deck in hole transmission layer, the electron transfer layer, also can two-layerly all omit and only establish luminescent layer.In addition, as organic layer 13, can insert organic function layers such as hole injection layer, electron injecting layer, hole blocking layer, electronic barrier layer according to purposes.
The material of organic layer 13 can suitably be selected according to the purposes of organic EL.Below list example, but be not limited to this.
As hole transmission layer, as long as have the high performance of 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, diphenyl ethene compounds or organic materials such as triazole derivative, styryl amines such as 4 '-two [N-(1-naphthyl)-N-phenylamino]-biphenyl aromatic nitrile bases such as (NPB), 4-(two-to toluidino)-4 '-[4-(two-to toluidino) styryl] talan.In addition, also can use and be dispersed with low molecular hole transport 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 such as 4-triazole triazole derivatives such as (TAZ), anthraquinone derivative, fluorenone derivatives
3) etc. macromolecular material, platinum complex compound or iridium complexs etc. such as fluorescence organo-metallic compound, p-phenylene vinylene (PPV) class, poly-fluorenes (Port リ Off Le オ レ Application) class, polyvinylcarbazole (PVK) class can be used for the organic material (special table 2001-520450) that from ternary exciton, phosphoresces.Luminescent layer both can be only to be made of above-mentioned luminescent material, also can contain hole mobile material, electron transport material, additive (donor, acceptor etc.) or photism alloy etc.In addition, also they can be dispersed in macromolecular material or the inorganic material.
As long as electron transfer layer has the function that is delivered to luminescent layer by the negative electrode injected electrons, 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 materials such as fluorenone derivatives that nitro replaces, anthracene quinine methane Derivatives, oxine derivative.
Above-mentioned hole transmission layer, luminescent layer, electron transfer layer can form with the wet process of print processes such as cladding processes such as spin coating method, infusion process, gunite, silk screen print method or the dry process of vapour deposition method, laser transfer method etc.
(e) seal member
The material of seal member 15 does not have special restriction, but is preferably formed by glass.Correspondence is formed at the arrangement (organic EL can be single also can be a plurality of) of the organic EL on the supporting substrate 11, forms sealing recess 15A on seal member 15.Also can in sealing recess 15A, form the two-stage recess-type of the recess (pocket portion) of filling drier.
Concerning the glass flat board, the formation of sealing recess 15A forms by carrying out processing such as punching press, etching, blasting treatment, and concerning resin system flat board, the formation of sealing recess 15A forms by molded grade.
As an example of aforesaid diffuse reflection portion, 15A forms by processing sealing recess.For example, under the situation of carrying out blasting treatment, on seal member 15, form dry type film resist (DFR), utilize photomask to cover sealing recess 15A formation portion, the part irradiation UV light beyond sealing recess 15A, to DFR expose, development treatment.Then, utilize grinding-material to carry out blasting treatment, form sealing recess 15A, but because the surface of the inclined-plane a of sealing recess 15A has become matsurface, so formed diffuse reflection portion in panel inside.In addition, under the situation of carrying out wet etch process,, form the resist pattern of sealing recess 15A opening by exposure, the development treatment of aforesaid DFR.Afterwards, utilize the soup fluoric acid to carry out etching, form sealing recess 15A, but because near the lower surface the inclined-plane a of sealing recess 15A becomes matsurface because of soup, so form aforesaid diffuse reflection portion.
Drier 17 as on the bottom surface that is installed in sealing recess 15A can use following drier to form: physical dryness agent such as zeolite, silica gel, carbon, carbon nano-tube; Chemical driers such as alkali metal oxide, metal halide, chlorine peroxide; In petroleum-type solvents such as toluene, dimethylbenzene, aliphat organic solvent, dissolved the drier of metal-organic complex; These desiccant particles are dispersed in the polyethylene, polyisoprene with transparency, the poly-meat silicic acid vinyl acetate (drier in the adhesive such as Port リ PVC ニ Le シ Application Na エ-ト) etc.
(f) bonding agent
(g) variety of way of organic EL panel
Organic EL can form single organic EL, also can have required patterning, constitutes a plurality of pixels.
And, in the latter case, its display mode can be monochromatic luminous, also can be 2 looks or multicolor luminous more than 2 looks, particularly, can constitute with the following methods in order to realize multicolor luminous organic EL panel: comprise 3 kinds of light emitting functional layer that form corresponding RGB mode formation 2 looks or more than the mode (branch is coated with mode) of the light emitting functional layer of 2 looks, with colour filter or be combined to mode (the CF mode of monochromatic light emitting functional layer such as white or blueness by the color conversion layer that fluorescent material forms, 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.
(h) manufacture method
The organic EL panel the 10,20, the 30th that execution mode relates to forms through following operation manufacturing: the element that forms organic EL on transparent plate glass system supporting substrate 11 forms operation; The formation operation of seal member 15; Utilize bonding agent 16 to paste the sealing process of seal member 15 and supporting substrate 11.
Panel in aforesaid passive drive mode is fabricated to example, and element forms operation will form film by methods such as evaporation, sputters as first electrode 12 of the ITO of anode etc. on supporting substrate 11, utilizes photolithography etc. to form band pattern.Then, form organic layer with the wet process of print processes such as cladding process, gunite, silk screen print method such as spin coating method, infusion process etc. or the dry process of vapour deposition method, laser transfer method etc.As an example, stack gradually each material of hole transmission layer, luminescent layer, electron transfer layer by evaporation, form band shape second electrode 14 at last as negative electrode, make itself and first electrode, 12 quadratures, form matrix by first electrode 12 and second electrode 14.Second electrode 14 is utilize to use methods such as the evaporation of mask of band pattern or sputter to form.
The formation operation of seal member 15 is: after glass seal member 15 being carried out drawing, etching, blasting treatment etc. and being processed to form sealing recess 15A, utilize bonding agent etc. to make on the bottom surface of drier 17 attached to sealing recess 15A, according to circumstances use the gas permeability sheet covers drier 17 that constitutes by cloth, paper or synthetic resin to fix.
Sealing process is: the particle diameter that for example mixes an amount of (about 0.1～0.5 weight %) in ultraviolet hardening epoxy resin adhesive 16 is the spacer (preferred glass or plastic spacer) of 1～100m, uses dispenser etc. that it is coated on the supporting substrate 11 position corresponding to the bonding plane of seal member 15.Then, under atmosphere of inert gases such as argon gas, make seal member 15 and supporting substrate 11 butt joints by bonding agent 16.Afterwards, to bonding agent 16 irradiation ultraviolet radiations, make its curing from supporting substrate 11 sides (or seal member 15 sides).Like this, in the seal cavity of seal member 15 and supporting substrate 11, to have enclosed the state sealing organic el element of inert gases such as argon gas.
According to the organic EL panel and the manufacture method thereof of this execution mode, the outside incident light that incides in the panel can be by the reflection of the diffuse reflection portion in the panel, thus can be provided with this filter of performance on the whole front panel face of optical filter 18 function.Therefore, the non-unfavorable condition that mirrors extraneous scenery when luminous can not appear, contrast reduces or becomes the unfavorable condition that can not show states such as black when luminous, can prevent the display performance deterioration that causes because of outside incident light substantially fully.
Claims (10)
1. organic electroluminescence panel, the optical filter that is made of circular polarizing disk is set on the one side of supporting substrate, on the another side of described supporting substrate, form organic electroluminescent device, described organic electroluminescent device have first electrode and second electrode and be clipped in this first, organic layer between second electrode, described first electrode and at least one side of second electrode are made of transparency electrode, described organic layer contains luminescent layer at least, on described another side, pasting the seal member that is formed with the sealing recess that is used to seal described organic electroluminescent device, it is characterized in that
Be provided with the anti-stop element of diffuse reflection, the anti-stop element of this diffuse reflection prevents that the outside incident light that incides in the panel from being reflected by the diffuse reflection portion in the panel.
2. organic electroluminescence panel according to claim 1 is characterized in that,
As the anti-stop element of described diffuse reflection, the extension of described first or second electrode that are made of the light reflective electrode is set on the another side of described supporting substrate, make it hide described diffuse reflection portion.
3. organic electroluminescence panel according to claim 1 is characterized in that,
As the anti-stop element of described diffuse reflection, the extension of described first or second electrode that are made of transparency electrode is set on the another side of described supporting substrate, make it hide described diffuse reflection portion, on the surface of this extension, be laminated with light reflective material.
4. organic electroluminescence panel according to claim 1 is characterized in that,
As the anti-stop element of described diffuse reflection, be formed with in the bottom surface of described sealing recess make the described sealing recess that becomes described diffuse reflection portion the inclined-plane not towards the notch of described supporting substrate side.
5. organic electroluminescence panel according to claim 1 is characterized in that,
As the anti-stop element of described diffuse reflection, on the surface of the described supporting substrate relative, be formed with light shielding part with described diffuse reflection portion.
6. the manufacture method of an organic electroluminescence panel, the optical filter that is made of circular polarizing disk is set on the one side of supporting substrate, on the another side of described supporting substrate, form organic electroluminescent device, described organic electroluminescent device have first electrode and second electrode and be clipped in this first, organic layer between second electrode, described first electrode and at least one side of second electrode are made of transparency electrode, described organic layer contains luminescent layer at least, pasting the seal member that is formed with the sealing recess that is used to seal described organic electroluminescent device on the described another side, it is characterized in that
The anti-stop element of diffuse reflection is set, and the anti-stop element of this diffuse reflection prevents that the outside incident light that incides in the panel from being reflected by the diffuse reflection portion in the panel.
7. the manufacture method of organic electroluminescence panel according to claim 6 is characterized in that,
In the formation operation of described organic electroluminescent device, as the anti-stop element of described diffuse reflection, the extension of described first or second electrode that are made of the light reflective electrode is set on the another side of described supporting substrate, make it hide described diffuse reflection portion.
8. the manufacture method of organic electroluminescence panel according to claim 6 is characterized in that,
Formation operation at described organic electroluminescent device, as the anti-stop element of described diffuse reflection, the extension of described first or second electrode that are made of transparency electrode is set on the another side of described supporting substrate, make it hide described diffuse reflection portion, on the surface of this extension, be laminated with light reflective material.
9. the manufacture method of organic electroluminescence panel according to claim 6 is characterized in that,
In the formation operation of described seal member, as the anti-stop element of described diffuse reflection, form in the bottom surface of described sealing recess make the described sealing recess that becomes described diffuse reflection portion the inclined-plane not towards the notch of described supporting substrate side.
10. the manufacture method of organic electroluminescence panel according to claim 6 is characterized in that,
As the anti-stop element of described diffuse reflection, on the surface of the described supporting substrate relative, form light shielding part with described diffuse reflection portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP119395/2003 | 2003-04-24 | ||
| JP2003119395A JP2004327195A (en) | 2003-04-24 | 2003-04-24 | Organic el panel and its manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN1541031A true CN1541031A (en) | 2004-10-27 |
| CN100442572C CN100442572C (en) | 2008-12-10 |
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| JP (1) | JP2004327195A (en) |
| KR (1) | KR20040092420A (en) |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449774C (en) * | 2006-06-20 | 2009-01-07 | 友达光电股份有限公司 | Reflection organic electroluminescence panel and display |
| CN1988206B (en) * | 2005-12-22 | 2010-05-19 | 佳能株式会社 | Light-emitting device, display and image pick-up device |
| CN101288343B (en) * | 2005-09-22 | 2010-08-25 | 松下电工株式会社 | Organic light emitting element and its manufacturing method |
| CN101604041B (en) * | 2008-06-11 | 2013-06-05 | 株式会社日本显示器西 | Polarizing plate, display, and electronic apparatus |
| CN103219358A (en) * | 2012-01-19 | 2013-07-24 | 三星显示有限公司 | Organic light emitting display devices and methods of manufacturing organic light emitting display devices |
| CN104485348A (en) * | 2014-12-25 | 2015-04-01 | 信利半导体有限公司 | OLED display device |
| CN108029176A (en) * | 2015-09-29 | 2018-05-11 | 住友化学株式会社 | The manufacture method of organic electronic device and the manufacture method of containment member |
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| US8884846B2 (en) | 2007-02-28 | 2014-11-11 | Japan Display Inc. | Organic EL display device |
| JP5205914B2 (en) * | 2007-07-10 | 2013-06-05 | セイコーエプソン株式会社 | Display device and electronic device |
| JP5194592B2 (en) * | 2007-07-10 | 2013-05-08 | セイコーエプソン株式会社 | Display device and electronic device |
| JP5362711B2 (en) | 2008-05-21 | 2013-12-11 | パイオニア株式会社 | Organic light emitting device |
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| EP1022931A4 (en) * | 1998-06-30 | 2004-04-07 | Nippon Seiki Co Ltd | Electroluminescent display |
| JP2001057474A (en) * | 1999-08-19 | 2001-02-27 | Auto Network Gijutsu Kenkyusho:Kk | Organic el displaying device |
| JP2003108019A (en) * | 2001-10-01 | 2003-04-11 | Sharp Corp | Self-luminous picture display device |
-
2003
- 2003-04-24 JP JP2003119395A patent/JP2004327195A/en active Pending
-
2004
- 2004-04-15 TW TW093110557A patent/TWI256268B/en active
- 2004-04-19 KR KR1020040026574A patent/KR20040092420A/en not_active Application Discontinuation
- 2004-04-20 CN CNB2004100310875A patent/CN100442572C/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101288343B (en) * | 2005-09-22 | 2010-08-25 | 松下电工株式会社 | Organic light emitting element and its manufacturing method |
| CN1988206B (en) * | 2005-12-22 | 2010-05-19 | 佳能株式会社 | Light-emitting device, display and image pick-up device |
| CN100449774C (en) * | 2006-06-20 | 2009-01-07 | 友达光电股份有限公司 | Reflection organic electroluminescence panel and display |
| CN101604041B (en) * | 2008-06-11 | 2013-06-05 | 株式会社日本显示器西 | Polarizing plate, display, and electronic apparatus |
| CN103219358A (en) * | 2012-01-19 | 2013-07-24 | 三星显示有限公司 | Organic light emitting display devices and methods of manufacturing organic light emitting display devices |
| CN104485348A (en) * | 2014-12-25 | 2015-04-01 | 信利半导体有限公司 | OLED display device |
| CN108029176A (en) * | 2015-09-29 | 2018-05-11 | 住友化学株式会社 | The manufacture method of organic electronic device and the manufacture method of containment member |
| US10403858B2 (en) | 2015-09-29 | 2019-09-03 | Sumitomo Chemical Company, Limited | Method for manufacturing organic electronic device and method for manufacturing sealing member |
| CN108029176B (en) * | 2015-09-29 | 2019-12-13 | 住友化学株式会社 | Method for manufacturing organic electronic device and method for manufacturing sealing member |
| CN110444686A (en) * | 2019-08-14 | 2019-11-12 | 昆山维信诺科技有限公司 | Display panel and preparation method thereof and display device |
| CN110444686B (en) * | 2019-08-14 | 2022-07-01 | 苏州清越光电科技股份有限公司 | Display panel, preparation method thereof and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004327195A (en) | 2004-11-18 |
| CN100442572C (en) | 2008-12-10 |
| TWI256268B (en) | 2006-06-01 |
| TW200423797A (en) | 2004-11-01 |
| KR20040092420A (en) | 2004-11-03 |
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