CN104218167A - Organic light-emitting faceplate and preparation method thereof - Google Patents
Organic light-emitting faceplate and preparation method thereof Download PDFInfo
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- CN104218167A CN104218167A CN201310208258.6A CN201310208258A CN104218167A CN 104218167 A CN104218167 A CN 104218167A CN 201310208258 A CN201310208258 A CN 201310208258A CN 104218167 A CN104218167 A CN 104218167A
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- 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
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/854—Arrangements for extracting light from the devices comprising scattering means
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/10—Apparatus or processes specially adapted to the manufacture of electroluminescent light sources
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
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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
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- 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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Abstract
This invention discloses an organic light-emitting faceplate, which contains a parallel substrate and a packaging cover plate. The edges of the substrate and the packaging cover plate are sealed and connected and form a seal chamber between them. The inner surface of the substrate includes zone ones and zone twos. Multiple zone ones and zone twos are provided, are alternately connected and are arranged in a grid shape. An organic light-emitting module is arranged in each zone one and a scattering layer is arranged in each zone two. The plurality of organic light-emitting modules integrally form a big light-emitting surface, through the scattering layer, the direction of environmental light is changed and the reflectivity to the environmental light in zone two is reduced, so that the reflectivity to the environmental light in the entire organic light-emitting faceplate is reduced. Part of the sidelight emitted from peripheries of the organic light-emitting modules changes the transmitting direction through the scattering layer and transmits from the zone two. As the result, luminous efficiency of organic light-emitting modules is improved. This invention also discloses the preparation method of the above mentioned organic light-emitting faceplate.
Description
Technical field
The present invention relates to luminescence technology, particularly relate to a kind of organic luminous panel and preparation method thereof.
Background technology
Organic electroluminescent (Organic Light Emission Diode), hereinafter referred to as OLED, there is the characteristics such as brightness is high, material selection range is wide, driving voltage is low, all solidstate active illuminating, have the advantages such as high definition, wide viewing angle and fast response time simultaneously, a kind of Display Technique and light source of great potential, meet the development trend of information age mobile communication and information displaying, and the requirement of green lighting technique, be the focal point of current lot of domestic and foreign researcher.
The side of light from anode or negative electrode can only be taken out by the OLED major part of prior art, and obtained bottom emitting or top emitting OLED device, can also be prepared into the display of double-side, thus obtain the viewing area of more wide region.No matter be top emitting, or bottom emitting, or the organic light emitting apparatus of double-sided display, use when strong surround lighting, the catoptric arrangement that capital produces at display surface because of ambient light and affect the contrast of this display unit, and then make the quality variation of display.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of organic luminous panel and preparation method thereof, can reduce organic luminous panel to environment light reflectance.
In order to solve the problems of the technologies described above, on the one hand, The embodiment provides a kind of organic luminous panel, comprise the substrate and encapsulation cover plate that are parallel to each other, the periphery of described substrate and the periphery of described encapsulation cover plate are tightly connected, and form seal chamber between;
The inner surface that described substrate is positioned at described seal chamber comprises the firstth district and the secondth district, and described firstth district and described secondth district are multiple, and the two alternately connects and is arranged into latticed;
Each described firstth district is provided with organic light emitting module, the area of described organic light emitting module and the shape in described firstth district and measure-alike; Each described secondth district is provided with scattering layer, the shape in described scattering layer and described secondth district and measure-alike.
Wherein, the shape in described firstth district and described secondth district and measure-alike.
Wherein, described firstth district and described secondth district are the one in square, equilateral triangle, rhombus and regular hexagon.
Wherein, described scattering layer comprises transparent medium and the scattering particles of uniformly dispersing in described transparent medium.
Wherein, the mass ratio of described scattering particles and described transparent medium is 2:100-20:100.
Wherein, the light direction of described organic light emitting module, towards described substrate, described scattering layer is also provided with reflector, and described scattering layer is between described substrate and described reflector.
On the other hand, the invention provides a kind of preparation method of above-mentioned organic luminous panel, comprise the following steps:
There is provided a substrate, described substrate has an inner plate surface, and described inner plate surface presets the firstth district and the secondth district, and described firstth district and described secondth district are multiple, and the two alternately connects and is arranged into latticed;
Organic light emitting module is prepared in described firstth district;
Scattering layer is prepared in described secondth district;
One encapsulation cover plate is provided;
The periphery of the periphery of described encapsulation cover plate and described substrate is tightly connected, makes described organic light emitting module and scattering layer encapsulation.
Wherein, prepare in the step of organic light emitting module in described firstth district, comprise the following steps:
Described inner plate surface is prepared the anode film of described organic light emitting module, and described anode film covers whole inner plate surface;
Remove the anode film being positioned at described secondth district;
One first mask plate is provided, described first mask plate offers the perforate of closing with described first district's matching form;
Described mask plate is placed on the substrate;
The anode film being positioned at described firstth district is prepared luminescence unit and the cathode thin film of described organic light emitting module successively.
Wherein, described secondth district prepares in the step of scattering layer, comprises the following steps:
One second mask plate is provided, described second mask plate offers the perforate matched with described secondth district;
Described second mask plate is placed on the substrate;
Adopt vacuum evaporation technique, described scattering layer is prepared in described secondth district.
Wherein, after the step of organic light emitting module is prepared in described firstth district, before the step be tightly connected by the periphery of the periphery of described encapsulation cover plate and described substrate, described organic light emitting module and scattering layer encapsulated, also comprise step: on described scattering layer, prepare reflector.
Organic luminous panel that the embodiment of the present invention provides and preparation method thereof, multiple organic light emitting module entirety forms large area light emitting face, multiple firstth district is alternately connected with multiple secondth district and is arranged into latticed, organic light emitting module and scattering layer are separately positioned on the firstth district and the secondth district, make scattering layer be distributed in organic light emitting module; By scattering layer, change the direction of surround lighting, reduce the secondth district to environment light reflectance, and then reduce whole organic luminous panel to environment light reflectance; The sidelight that part sends from organic light emitting module periphery changes transmit direction through scattering layer, can emit from the secondth district, improves the light extraction efficiency of organic light emitting module.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the section of structure of the organic luminous panel that the preferred embodiment of the present invention provides;
Fig. 2 is the firstth district of the substrate inner surface of organic luminous panel in Fig. 1 and the schematic diagram in the secondth district;
Fig. 3 is the flow chart of the preparation method of the organic luminous panel that the preferred embodiment of the present invention provides;
Fig. 4 is the flow chart preparing the step of organic light emitting module in the preferred embodiment of the present invention first;
Fig. 5 be in the preferred embodiment of the present invention after photoengraving at the schematic diagram of anode film pattern that inner plate surface is formed;
Fig. 6 is the flow chart of the step preparing scattering layer in the preferred embodiment of the present invention on the second region;
Fig. 7 is the flow chart of the step periphery of encapsulation cover plate and the periphery of substrate are tightly connected in the preferred embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
See Fig. 1, be a kind of organic luminous panel that preferred embodiment in the present invention provides, comprise the substrate 1 and encapsulation cover plate that are parallel to each other.
The periphery of substrate 1 and the periphery of encapsulation cover plate are tightly connected, and form seal chamber between.In present embodiment, the periphery of substrate 1 and the periphery of encapsulation cover plate 2 are tightly connected by light-curing adhesive 4, and other modes certainly also can be adopted to make the two be tightly connected.
As shown in Figure 2, substrate 1 has the inner surface that is positioned at seal chamber, and this inner surface comprises the first district 11 and the second district of district 12, first 11 and the second district 12 and is multiple, and the two alternately connects and is arranged into latticed.As preferably, the shape in the first district 11 and the second district 12 and measure-alike, namely the area of the two is identical.In present embodiment, the first district 11 and the second district 12 are square.The edge in the first district 11 and the edge seamless link in the second district 12, because the first district 11 is alternately connected with the second district 12 and is arranged in grid, a certain first district 11 can be made to be enclosed in four the second districts 12, and a certain second district 12 is enclosed in four the first districts 11 simultaneously.
For ensureing the drying property of seal chamber, be provided with drier 3 in seal chamber, drier is ring-type, and the first district 11 and the second district 12 are positioned at the ring of drier 3.
Each first district 11 is provided with organic light emitting module 110, the area of organic light emitting module 110 and the shape in the first district 11 and measure-alike.Multiple organic light emitting module 110 is connected to form large area light emitting panel, and in the present embodiment, each organic light emitting module 110 is connected in parallel, and certainly in other implementations, each organic light emitting module 110 also can be connected in series.
Organic light emitting module 110 comprises the anode film, light-emitting component and the cathode thin film that stack gradually.Wherein, anode film is covered in the first district 11 of substrate 1, makes the light direction of organic light emitting module 110 towards substrate 1, and namely relative with inner surface on substrate 1 outer surface is exiting surface.
Anode film adopts transparent conductive oxide film, as, indium and tin oxide film (ITO), indium-zinc oxide (IZO) or aluminium zinc oxide (AZO), the materials such as gallium zinc oxide (GZO), it can adopt the technique of vacuum magnetic-control sputtering to prepare film forming on the inner surface of substrate 1.
Negative electrode generally adopts metal A g, the alloy of Al or Ag, Al and metal M g.Organic light-emitting units adopts vacuum-deposited method to be formed, and it comprises the hole transmission layer, luminescent layer and the electron transfer layer that are cascading.In order to improve luminous efficiency, organic light-emitting units also comprises hole injection layer further, electron injecting layer, and barrier layer can a series of functional layer.
The material that hole transmission layer can adopt is 2-TNATA (4,4', 4''-tri-(2-naphthylphenyl is amino) triphenylamine), NPB (N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1,1'-biphenyl-4,4'-diamines), m-MTDATA ((4,4', 4''-tri-(N-3-methylphenyl-N-phenyl is amino) triphenylamine), TPD (N, N'-diphenyl-N, N'-bis-(3-aminomethyl phenyls)-1,1'-biphenyl-4,4'-diamines), one in TCTA (4,4', 4''-tri-(carbazole-9-base) triphenylamine).
The material that luminescent layer adopts is 4-(dintrile methyl)-2-butyl-6-(1, 1, 7, 7-tetramethyl Lip river pyridine of a specified duration-9-vinyl)-4H-pyrans (DCJTB), two (4, 6-difluorophenyl pyridinato-N, C2) pyridinecarboxylic closes iridium (FIrpic), two (4, 6-difluorophenyl pyridinato)-four (1-pyrazolyl) boric acid conjunction iridium (FIr6), two (2-methyl-diphenyl [f, h] quinoxaline) (acetylacetone,2,4-pentanedione) close iridium (Ir (MDQ) 2 (acac)), three (1-phenyl-isoquinolin) close iridium (Ir (piq) 3) and three (2-phenylpyridines) and close one in iridium (Ir (ppy) 3), or wherein several doping as luminescent material and material of main part forms, material of main part can select CBP(4, 4'-bis-(9-carbazole) biphenyl), Alq3(8-hydroxyquinoline aluminum), TPBi (1, 3, 5-tri-(1-phenyl-1H-benzimidazolyl-2 radicals-Ji) benzene), NPB (N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1, 1'-biphenyl-4, 4'-diamines), the mass ratio of luminescent material in material of main part is between 1:100 ~ 20:100.
The material of electron transfer layer can be 2-(4-xenyl)-5-(4-the tert-butyl group) phenyl-1,3,4-oxadiazole (PBD), Bphen (4,7-diphenyl-o-phenanthroline), TPBi (1,3,5-tri-(1-phenyl-1H-benzimidazolyl-2 radicals-Ji) benzene), BCP (2,9-dimethyl-4,7-biphenyl-1,10-phenanthrolene) and TAZ (1,2,4-triazole derivative) in one.
Each second district 12 is provided with scattering layer 121 and reflector 122 successively, scattering layer 121 and reflector 122 all with the shape in the second district 12 and measure-alike.Reflector 122 is arranged on scattering layer 121, makes scattering layer 121 between reflector 122 and substrate 1.
Scattering layer 121 comprises transparent medium and the scattering particles of uniformly dispersing in transparent medium.
Transparent medium is organic material, common electron transport material or hole mobile material can be selected, as, 2-TNATA (4, 4', 4''-tri-(2-naphthylphenyl is amino) triphenylamine), NPB (N, N'-diphenyl-N, N'-bis-(1-naphthyl)-1, 1'-biphenyl-4, 4'-diamines), m-MTDATA ((4, 4', 4''-tri-(N-3-methylphenyl-N-phenyl is amino) triphenylamine), TPD (N, N'-diphenyl-N, N'-bis-(3-aminomethyl phenyl)-1, 1'-biphenyl-4, 4'-diamines), TCTA (4, 4', 4''-tri-(carbazole-9-base) triphenylamine), 2-(4-xenyl)-5-(4-the tert-butyl group) phenyl-1, 3, 4-oxadiazole (PBD), Bphen (4, 7-diphenyl-o-phenanthroline), TPBi (1, 3, 5-tri-(1-phenyl-1H-benzimidazolyl-2 radicals-Ji) benzene), BCP (2, 9-dimethyl-4, 7-biphenyl-1, 10-phenanthrolene), or TAZ (1, 2, 4-triazole derivative) etc.
Scattering particles are inorganic oxide material, can select the one in silicon dioxide, titanium dioxide, zirconium dioxide, antimonous oxide and alundum (Al2O3) etc.
The mass ratio of transparent medium and scattering particles, namely the mass ratio of inorganic oxide and organic material is 2:100-20:100, to reach best dispersion effect.By scattering layer 121, scattering is carried out to surround lighting, reduce the reflection to ambient light in the second district 12.The scattering layer 121 in multiple second district 12 is alternately arranged in multiple first district 11, can reduce the reflectivity of whole organic luminous panel.
In addition, in the prior art, the utilizing emitted light of organic light emitting module 110 side is generally all limited in organic light emitting module 110 inside, and in the present invention, the light sent from the side of organic light emitting module 110 can change transmit direction through scattering layer 121, and emit from the second district 12, the light extraction efficiency of organic light emitting module 110 can be improved.
In order to improve the utilization to organic light emitting module 110 sidelight further, reflector 122 is set on scattering layer 121, can by the light reflective of organic light emitting module 110 to substrate 1 direction with reflector 122, simultaneously due to the existence of scattering layer 121, this reflector 122 also can not increase the reflection to surround lighting.The shape of reflector 122 and scattering layer 121 and measure-alike, makes reflector 122 scattering layer 121 entirety be covered.The material in reflector 122 generally adopts metal A l, Ag, Pt, Au or other alloys, is deposited on scattering layer 121 by vacuum evaporation technique.
Preferably, reflector 122 equals the thickness of organic light emitting module 110, to make full use of the space in seal chamber with the gross thickness of scattering layer 121.The thickness of organic light-emitting structure is 200-600nm, and the thickness of reflection layer 122 is generally between 100-200nm, and scattering layer thickness is between 100-500nm.
Organic luminous panel provided by the invention, multiple organic light emitting module 110 forms large area light emitting face, multiple first district 11 is alternately connected with multiple second district 12 and is arranged into latticed, organic light emitting module 110 and scattering layer 121 are separately positioned on the first district 11 and the second district 12, scattering layer 121 is made to be distributed in organic light emitting module 110, by scattering layer 121, change the direction of surround lighting, reduce by 12 pairs, the secondth district environment light reflectance, and then reduce whole organic luminous panel to environment light reflectance; The sidelight that part sends from organic light emitting module 110 periphery changes transmit direction through scattering layer 121, can emit from the second district 12, improves the light extraction efficiency of organic light emitting module 110.
Below by way of illustrating that organic luminous panel provided by the invention can reduce the reflectivity to outside toroidal ray.The difference of the organic luminous panel of five kinds of embodiments is only material and the thickness of scattering layer 121 below, and other structures all adopt said structure, and the luminescent layer of organic light emitting module 110 all adopts green glow phosphor material.
Embodiment one: the inorganic oxide of scattering layer adopts TiO
2, organic material is TPBi, the mass ratio of the two is 2:100, scattering layer thickness is 100nm, reflector 122 thickness is 100nm, and organic light emitting module 110 thickness is 200nm, and luminous efficiency and luminosity are decayed to original intensity 70%, after tested, the reflectivity of overall organic luminous panel is 51%, and luminous efficiency is 5.1lm/W, and the life-span is 6550 hours.
Embodiment two: the inorganic oxide of scattering layer adopts SiO
2, organic material is NPB, the mass ratio of the two is 10:100, scattering layer thickness is 200nm, reflector 122 thickness is 100nm, and organic light emitting module 110 thickness is 400nm, and luminous efficiency and luminosity are decayed to original intensity 70%, after tested, the reflectivity of overall organic luminous panel is 42%, and luminous efficiency is 14.5lm/W, and the life-span is 6230 hours.
Embodiment three: the inorganic oxide of scattering layer adopts ZrO
2, organic material is Bphen, the mass ratio of the two is 10:100, scattering layer thickness is 200nm, reflector 122 thickness is 200nm, and organic light emitting module 110 thickness is 400nm, and luminous efficiency and luminosity are decayed to original intensity 70%, after tested, the reflectivity of overall organic luminous panel is 41%, and luminous efficiency is 15.8lm/W, and the life-span is 6740 hours.
Embodiment four: the inorganic oxide of scattering layer adopts Sb
2o
3, organic material is TPD, the mass ratio of the two is 15:100, scattering layer thickness is 500nm, reflector 122 thickness is 100nm, and organic light emitting module 110 thickness is 600nm, and luminous efficiency and luminosity are decayed to original intensity 70%, after tested, the reflectivity of overall organic luminous panel is 31%, and luminous efficiency is 12.1lm/W, and the life-span is 5940 hours.
Embodiment five: the inorganic oxide of scattering layer adopts Al
2o
3, organic material is BCP, the mass ratio of the two is 10:100, scattering layer thickness is 250nm, reflector 122 thickness is 150nm, and organic light emitting module 110 thickness is 600nm, and luminous efficiency and luminosity are decayed to original intensity 70%, after tested, the reflectivity of overall organic luminous panel is 37%, and luminous efficiency is 13.3lm/W, and the life-span is 5850 hours.
One comparative example is separately provided, in the second district 12 of this organic luminous panel, fills organic material, namely do not use the inorganic oxide that can carry out scattering to light, also reflector is not set.The thickness of organic light emitting module is 200nm, and luminous efficiency and luminosity are decayed to original intensity 70%, and after tested, the reflectivity of overall organic luminous panel is 85%, and luminous efficiency is 16.7lm/W, and the life-span is 6120 hours.
By testing above and can finding out, organic luminous panel provided by the invention can reduce the reflectivity to external environment condition yellow line, the reflection layer 122 simultaneously utilizing the second district 12 to arrange can improve radiative light extraction efficiency, therefore its whole lighting efficiency, compares the higher comparative example of reflectivity and does not decline too many.
In above execution mode, the first district 11 and the second district 12 are square, and as other execution mode, the first district 11 and the second district 12 also can be equilateral triangle, rhombus or regular hexagon or other shapes, also can alternately be arranged into latticed.
As shown in Fig. 3 to Fig. 7, present invention also offers a kind of preparation method of organic luminous panel, comprise the following steps.
S1, provide a substrate 1, substrate 1 has an inner plate surface, inner plate surface is preset the first district 11 and the second district of district 12, first 11 and the second district 12 and is multiple, and the two alternately connects and is arranged into latticed.
S2, prepare organic light emitting module 110 in the first district 11, as shown in Figure 4, this step is further comprising the steps of.
S21, employing vacuum sputtering technique, inner plate surface is prepared the anode film of organic light emitting module 110, and anode film covers whole plate face.
S22, employing optical etching technology or other lithographic techniques, remove the anode film being positioned at the second district 12, make the shape of anode film identical with the geomery in the first district 11.Anode film pattern 111 as shown in Figure 5 after etching.Herein, can the anode film in reserve part second district 12, the anode film in the second district 12 is etched into wire, becomes connecting line 123, and between the anode film being connected to two adjacent first districts 11, thus be convenient to the parallel connection between multiple organic light emitting module 110.
S23, provide one first mask plate, the first mask plate offers the perforate matched with the first district 11;
S24, by mask plate place on substrate 1, utilize the first mask plate the second district 12 can be blocked, the first district 11 is aimed in perforate, utilizes perforate to expose the first district 11.
S25, on the anode film being positioned at the first district 11, prepare luminescence unit and the cathode thin film of organic light emitting module 110 successively.
S3, in the second district 12, prepare scattering layer 121, as shown in Figure 6, this step is specifically further comprising the steps of.
S31, provide one second mask plate, the second mask plate offers the perforate matched with the second district 12;
S32, be placed on substrate by the second mask plate, utilize the second mask plate the first district 11 can be blocked, the second district 12 is aimed in its perforate, utilizes perforate to expose the second district 12.
S33, employing vacuum evaporation technique, scattering layer 121 is prepared in the second district 12.More specifically, provide electrodeless oxide material and organic material in this step, adopt the electrodeless oxide material of electron beam evaporation, the evaporation rate of inorganic oxide is 0.1-1nm/s; Adopt thermal resistance evaporating organic materials, the evaporation rate of organic material is 1-5nm/s, thus is formed in the first district 11 and mix by organic material and inorganic oxide the scattering layer 121 formed.The proportionate relationship of the two can be controlled by the evaporation rate controlling organic material and inorganic oxide.
S4, employing vacuum evaporation technique, scattering layer 121 is prepared reflector 122.In this step, can continue to utilize the second mask plate in previous step to be covered by organic light emitting module 110.If organic luminous panel does not have reflector, this step can be omitted.
S5, provide an encapsulation cover plate 2, the periphery of the periphery of encapsulation cover plate 2 and substrate 1 is tightly connected, organic light emitting module 110, scattering layer 121 and reflector 122 are encapsulated.As shown in Figure 7, this step specifically comprises the following steps.
S51, the drier of ring-type is set on the inner surface of substrate 1, and makes the first district 11 and the second district 12 be arranged in drier;
S52, provide an encapsulation cover plate 2,
S53, employing light-curing adhesive are bonding with the periphery of substrate 1 by the periphery of encapsulation cover plate 2, thus form the organic luminous panel of sealing, complete the preparation of whole organic luminous panel.
Above execution mode, does not form the restriction to this technical scheme protection range.The amendment done within any spirit at above-mentioned execution mode and principle, equivalently to replace and improvement etc., within the protection range that all should be included in this technical scheme.
Claims (10)
1. an organic luminous panel, comprises the substrate and encapsulation cover plate that are parallel to each other, and the periphery of described substrate and the periphery of described encapsulation cover plate are tightly connected, and form seal chamber between; It is characterized in that,
The inner surface that described substrate is positioned at described seal chamber comprises the firstth district and the secondth district, and described firstth district and described secondth district are multiple, and the two alternately connects and is arranged into latticed;
Each described firstth district is provided with organic light emitting module, the area of described organic light emitting module and the shape in described firstth district and measure-alike; Each described secondth district is provided with scattering layer, the shape in described scattering layer and described secondth district and measure-alike.
2. organic luminous panel according to claim 1, is characterized in that, the shape in described firstth district and described secondth district and measure-alike.
3. organic luminous panel according to claim 1, is characterized in that, described firstth district and described secondth district are the one in square, equilateral triangle, rhombus and regular hexagon.
4. organic luminous panel according to claim 1, is characterized in that, described scattering layer comprises transparent medium and the scattering particles of uniformly dispersing in described transparent medium.
5. organic luminous panel according to claim 5, is characterized in that, the mass ratio of described scattering particles and described transparent medium is 2:100-20:100.
6. organic luminous panel according to claim 1, is characterized in that, the light direction of described organic light emitting module, towards described substrate, described scattering layer is also provided with reflector, and described scattering layer is between described substrate and described reflector.
7. a preparation method for organic luminous panel, is characterized in that, comprises the following steps:
There is provided a substrate, described substrate has an inner plate surface, and described inner plate surface presets the firstth district and the secondth district, and described firstth district and described secondth district are multiple, and the two alternately connects and is arranged into latticed;
Organic light emitting module is prepared in described firstth district;
Scattering layer is prepared in described secondth district;
One encapsulation cover plate is provided;
The periphery of the periphery of described encapsulation cover plate and described substrate is tightly connected, makes described organic light emitting module and scattering layer encapsulation.
8. the preparation method of organic luminous panel according to claim 7, is characterized in that, prepares in the step of organic light emitting module, comprise the following steps in described firstth district:
Described inner plate surface is prepared the anode film of described organic light emitting module, and described anode film covers whole inner plate surface;
Remove the anode film being positioned at described secondth district;
One first mask plate is provided, described first mask plate offers the perforate of closing with described first district's matching form;
Described mask plate is placed on the substrate;
The anode film being positioned at described firstth district is prepared luminescence unit and the cathode thin film of described organic light emitting module successively.
9. the preparation method of organic luminous panel according to claim 7, is characterized in that, described secondth district prepares in the step of scattering layer, comprises the following steps:
One second mask plate is provided, described second mask plate offers the perforate matched with described secondth district;
Described second mask plate is placed on the substrate;
Adopt vacuum evaporation technique, described scattering layer is prepared in described secondth district.
10. the preparation method of organic luminous panel according to claim 7, it is characterized in that, after the step of organic light emitting module is prepared in described firstth district, before the step be tightly connected by the periphery of the periphery of described encapsulation cover plate and described substrate, described organic light emitting module and scattering layer encapsulated, also comprise step: on described scattering layer, prepare reflector.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017173684A1 (en) * | 2016-04-08 | 2017-10-12 | 武汉华星光电技术有限公司 | Preparation method for light scattering layer and organic light-emitting diode |
| CN108649056A (en) * | 2018-05-14 | 2018-10-12 | 昆山国显光电有限公司 | The production method of display screen, display device and display screen |
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| CN108649056A (en) * | 2018-05-14 | 2018-10-12 | 昆山国显光电有限公司 | The production method of display screen, display device and display screen |
| CN108649056B (en) * | 2018-05-14 | 2020-09-22 | 昆山国显光电有限公司 | Display screen, display device and manufacturing method of display screen |
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