WO2015161584A1 - Oled显示器及其制备方法 - Google Patents
Oled显示器及其制备方法 Download PDFInfo
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- WO2015161584A1 WO2015161584A1 PCT/CN2014/083914 CN2014083914W WO2015161584A1 WO 2015161584 A1 WO2015161584 A1 WO 2015161584A1 CN 2014083914 W CN2014083914 W CN 2014083914W WO 2015161584 A1 WO2015161584 A1 WO 2015161584A1
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- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000011368 organic material Substances 0.000 claims abstract description 76
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229920001621 AMOLED Polymers 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- 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
- H10K50/852—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
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- 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
- H10K59/875—Arrangements for extracting light from the devices
- H10K59/876—Arrangements for extracting light from the devices comprising a resonant cavity structure, e.g. Bragg reflector pair
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- H10K50/81—Anodes
- H10K50/818—Reflective anodes, e.g. ITO combined with thick metallic layers
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
- H10K59/1213—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements the pixel elements being TFTs
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/123—Connection of the pixel electrodes to the thin film transistors [TFT]
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- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/124—Insulating layers formed between TFT elements and OLED elements
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- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/10—Transparent electrodes, e.g. using graphene
- H10K2102/101—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO]
- H10K2102/103—Transparent electrodes, e.g. using graphene comprising transparent conductive oxides [TCO] comprising indium oxides, e.g. ITO
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- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/302—Details of OLEDs of OLED structures
- H10K2102/3023—Direction of light emission
- H10K2102/3026—Top emission
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- H10K59/805—Electrodes
- H10K59/8051—Anodes
- H10K59/80518—Reflective anodes, e.g. ITO combined with thick metallic layers
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- H10K59/80—Constructional details
- H10K59/805—Electrodes
- H10K59/8052—Cathodes
- H10K59/80521—Cathodes characterised by their shape
Definitions
- Embodiments of the present invention relate to an OLED display and a method of fabricating the same. Background technique
- OLED organic light emitting diode
- the light-emitting efficiency of OLED displays is very low.
- the main reason is that the reflectivity of organic matter is higher than that of glass and air.
- the reflectivity of glass is higher than that of air.
- the light emitted by the light-emitting layer will show total reflection when it is emitted into glass and air. The phenomenon causes part of the light to be absorbed by the metal electrode.
- a microcavity top emission OLED display has been developed which increases the light extraction efficiency by changing the distribution of light by means of multi-light interference of light inside the organic layer. Summary of the invention
- At least one embodiment of the present invention provides an OLED display and a method of fabricating the same that enable the display to have optimum light extraction efficiency and viewing angle characteristics.
- At least one embodiment of the present invention provides an OLED display including a plurality of sub-pixel units, each of the sub-pixel units including a first region and a second region; the first region includes sequentially disposed on a substrate a first electrode, a first organic material functional layer and a second electrode; the second region comprising a third electrode, a second organic material functional layer and a fourth electrode, which are sequentially disposed on the base substrate.
- the first electrode and the third electrode each include an opaque metal layer, and the second electrode and the fourth electrode are both semi-transparent metal electrodes; the first electrode, the first organic material functional layer and The second electrode constitutes a first microcavity, the third electrode, the second organic material functional layer and the fourth electrode constitute a second microcavity, and the first microcavity and the second micro The cavities have different microcavity effects.
- At least one embodiment of the present invention provides a method of fabricating an OLED display, the OLED display including a plurality of sub-pixel units; the method comprising: first at each of the sub-pixel units The region and the second region respectively form a first electrode and a third electrode on the base substrate; the first electrode and the third electrode each comprise an opaque metal layer; the first electrode and the first electrode are formed Forming a first organic material functional layer and a second organic material functional layer on the first region and the second region, respectively, on the substrate of the three electrodes; forming the first organic material functional layer and the first A second electrode and a fourth electrode located in the first region and the second region are respectively formed on the substrate of the functional layer of the organic material; the second electrode and the fourth electrode are both translucent metal electrodes.
- the first electrode, the first organic material functional layer and the second electrode constitute a first microcavity
- the third electrode, the second organic material functional layer and the fourth electrode constitute a second micro a cavity
- the first microcavity and the second microcavity have different microcavity effects.
- FIG. 1 is a top plan view of a sub-pixel unit of an OLED display according to an embodiment of the present invention
- FIG. 2 is a schematic cross-sectional view showing a sub-pixel unit of an OLED display according to an embodiment of the present invention
- FIG. 3 is a schematic cross-sectional view of a sub-pixel unit of an OLED display according to an embodiment of the present disclosure
- FIG. 4 is a schematic cross-sectional view 3 of a sub-pixel unit of an OLED display according to an embodiment of the present disclosure
- FIG. 5 is a schematic cross-sectional view of a sub-pixel unit of an OLED display according to an embodiment of the present disclosure
- FIG. 6 is a cross-sectional view along the line AA of a sub-pixel unit of an OLED display including a flat layer according to an embodiment of the present invention
- FIG. 7 is a schematic cross-sectional view of a sub-pixel unit of an OLED display including a flat layer according to an embodiment of the present invention.
- FIG. 8 is a cross-sectional view along the line AA of a sub-pixel unit of an OLED display including a thin film transistor according to an embodiment of the present invention
- FIG. 9 is a cross-sectional view taken along line AA of a sub-pixel unit of an OLED display including a thin film transistor according to an embodiment of the present disclosure
- FIG. 10 is a cross-sectional view, along line AA, of a sub-pixel unit of an OLED display including a buffer layer according to an embodiment of the present invention.
- 01-sub-pixel unit 10-first region; 20-second region; 100-substrate substrate; 101-first electrode; 102-first organic material functional layer; 103-second electrode; 201-third electrode 202-second organic material functional layer; 203-fourth electrode; 300-flat layer; 400-thin film transistor; 500-buffer layer; 600-encapsulated layer.
- top-emitting OLED displays generally achieve adjustments to the strength of the microcavity by adjusting the thickness between the cathode and the anode.
- the microcavity effect is too weak, the adjustment of the light extraction efficiency is not obvious, and even the light extraction efficiency is deteriorated.
- the microcavity effect is too strong, although the adjustment of the light extraction efficiency is more obvious, it will lead to the viewing angle of the display. The difference is that the intensity and color of the light will be different at different viewing angles.
- the OLED display includes a plurality of sub-pixel units 01, each of which includes a first area 10 and a second area.
- the first region 10 includes a first electrode 101, a first organic material functional layer 102, and a second electrode 103, which are sequentially disposed on the base substrate 100; the second region
- the 20 includes a third electrode 201, a second organic material functional layer 202, and a fourth electrode 203 which are sequentially disposed on the base substrate 100.
- the first electrode 101 and the third electrode 201 each include an opaque metal layer, and the second electrode 103 and the fourth electrode 203 are both semi-transparent metal electrodes; the first electrode 101, the first The organic material functional layer 102 and the second electrode 103 constitute a first microcavity, and the third electrical The pole 201, the second organic material functional layer 202 and the fourth electrode 203 constitute a second microcavity, and the first microcavity and the second microcavity have different microcavity effects.
- the first electrode 101 and the third electrode 201 may include an opaque metal layer and an indium tin oxide (ITO) layer disposed on both sides of the opaque metal layer. This can match the energy levels of the first electrode 101 and the third electrode 201 with the functional layer of the organic material above it, and facilitate carrier injection of the first electrode 101 and the third electrode 201. In the luminescent layer of the organic material functional layer.
- ITO indium tin oxide
- the second electrode 103 and the fourth electrode 203 may be silver conductive layers having a relatively thin thickness. It should be noted that, first, the first electrode 101 located in the first region 10 and the third electrode 201 located in the second region 20 may be an anode located at the first region 10 The second electrode 103 and the fourth electrode 203 located in the second region 20 may be a cathode; or the first electrode 101 and the third electrode 201 may be a cathode, and the second electrode 103 and The fourth electrode 203 is an anode.
- the first organic material functional layer 102 located in the first region 10 and the second organic material functional layer 202 located in the second region 20 may include at least an electron transport layer, a light emitting layer, and a hole Transport layer.
- the organic material functional layer may further include an electron injection layer disposed between the cathode and the electron transport layer, and disposed in the hole transport. A hole injection layer between the layer and the anode.
- the light-emitting layers of the three sub-pixel units 01 in one pixel unit may respectively include red, green, and blue light-emitting molecules; of course, the light-emitting layer may include only white light-emitting molecules, which is not limited herein.
- these organic light-emitting materials may be fluorescent light-emitting materials, phosphorescent materials, or a mixture of the two.
- the first organic material functional layer The light-emitting layer in the 102 and the second organic material functional layer 202 can emit light, and the first region 10 and the second region 20 belong to one sub-pixel unit 01. Therefore, at least one implementation of the present invention
- the first electrode 101 and the third electrode 103 may be electrically connected, and the second electrode 201 and the fourth electrode 203 are electrically connected; for convenience of preparation, the first organic material functional layer 102 and the second organic material function may be The layers of layer 202 are simultaneously prepared for formation.
- the microcavity effect mainly means that the density of photons of different energy states is redistributed, so that only light of a specific wavelength can be emitted at a specific angle after conforming to the resonant cavity mode.
- the first region 10 and the second region 20 by adjusting parameters in the first microcavity and the second microcavity that affect the microcavity effect, for example, the thickness of the first microcavity and the second microcavity, the first electrode 101 in the first microcavity, and The reflectance of the third electrode 201 in the second microcavity, etc., causes the first region 10 and the second region 20 to have different light extraction efficiencies and viewing angle characteristics.
- the purpose of adjusting the light extraction efficiency and the viewing angle characteristic of the sub-pixel unit 01 can be achieved by adjusting the ratio and the position of the first region 10 and the second region 20, so that the OLED display has the most Good light output efficiency and viewing angle characteristics.
- the OLED display may be a passive matrix display or an active matrix display, which is not limited herein.
- At least one embodiment of the present invention provides an OLED display including a plurality of sub-pixel units 01, each of the sub-pixel units 01 including a first region 10 and a second region 20;
- the first region 10 includes a first electrode 101 on the base substrate 100, a first organic material functional layer 102 and a second electrode 103;
- the second region 20 includes a third electrode 201 and a second organic material function which are sequentially disposed on the base substrate 100 Layer 202 and fourth electrode 203.
- the first electrode 101 and the third electrode 201 each include an opaque metal layer, and the second electrode 103 and the fourth electrode 203 are both semi-transparent metal electrodes; the first electrode 101, the first The organic material functional layer 102 and the second electrode 103 constitute a first microcavity, and the third electrode 201, the second organic material functional layer 202 and the fourth electrode 203 constitute a second microcavity, and the The first microcavity and the second microcavity have different microcavity effects.
- the first region 10 and the second region 20 have different light extraction efficiencies and viewing angle characteristics by adjusting parameters in the first microcavity and the second microcavity that affect the microcavity effect.
- the ratio of the first region 10 and the second region 20, and the position achieve the purpose of adjusting the light extraction efficiency and viewing angle characteristics of the sub-pixel unit 01, so that the OLED display has the best light extraction efficiency and viewing angle characteristics.
- the thickness of the first microcavity is different from the thickness of the second microcavity.
- the thickness of the microcavity and the peak wavelength of the microcavity illuminating light can satisfy the following relationship:
- the thickness of the microcavity by adjusting the thickness of the microcavity, the position of the emission modulus m and the emission wavelength of the microcavity can be changed to shift the center wavelength of the electroluminescence optical term, thereby changing the light extraction efficiency. Based on this, the light extraction efficiency and viewing angle characteristics of the sub-pixel unit 01 can be balanced by adjusting the thicknesses of the first microcavity and the second microcavity.
- the thickness of the first microcavity is adjusted, for example, by adjusting the thickness of the first electrode 101, and the thickness of the second microcavity is adjusted by adjusting the thickness of the third electrode 201.
- the first electrode 101 and the third electrode 201 have different reflectivities.
- the reflectance of the reflective electrode can be appropriately set, that is, the first The reflectivity of the one electrode 101 and the third electrode 201 is such that, for example, the first region 10 has a high light-emitting efficiency, and the second region 20 ensures the viewing angle characteristic, so that the light-emitting efficiency and the viewing angle characteristic of the sub-pixel unit 01 reach one of the most Excellent balance.
- the upper surface of the first electrode 101 in contact with the first organic material functional layer 102 and the third electrode 201 are in contact with the second organic material functional layer 202.
- the shape of the upper surface is such that the first electrode 101 and the third electrode 201 have different reflectivities. That is, as shown in FIGS. 3 to 5, the upper surface of the first electrode 101 in contact with the first organic material functional layer 102 may be planar, and the third electrode 201 and the second organic material may be The upper surface in contact with the functional layer 202 is set to be non-planar.
- the upper surface of the third electrode 201 in contact with the second organic material functional layer 202 is made non-planar, and the light emitted from the light emitting layer of the second organic material functional layer 202 can be made at the third electrode.
- Multiple beam interferences in a plurality of directions are formed between the second electrode 203 and the fourth electrode 203, so that light of different angles can be emitted, thereby ensuring the viewing angle characteristics thereof; and the first electrode 101 and the first organic material functional layer 102 are The upper surface of the contact is set to a plane to ensure the intensity of the emitted light; Through the cooperation of the two, the light extraction efficiency and the viewing angle characteristic of the sub-pixel unit 01 can reach an optimal balance state.
- the upper surface of the 202 contact is made to have a certain roughness.
- the value of this roughness can be set according to the actual situation.
- the upper surface of the third electrode 201 in contact with the second organic material functional layer 202 is formed into an uneven shape.
- the unevenness may be, for example, a curved shape, a wavy shape, a pleated shape or the like.
- the upper surface of the third electrode 201 is formed into a non-planar shape through the base substrate 100 and the first electrode. 101.
- the flat layer 300 is disposed between the third electrodes 201 to be realized; that is, the upper surface of the flat layer 300 located under the third electrode 201 may be set to have a roughness of a predetermined value or have irregularities. shape.
- the flat layer 300 is located below the first electrode 101 and the third electrode 201, that is, the flat layer 300 located below is prepared and formed by the first electrode 101 and the third electrode 201 located above. Formed, therefore, in the case where the upper surface of the flat layer 300 located under the third electrode 201 has a certain roughness or has a specific shape, the third electrode 201 formed thereabove also has a certain roughness or has The specific shape, the second organic material functional layer 202 and the fourth electrode 203 located above the third electrode 201 are also of a certain roughness or have a specific shape.
- the OLED display provided by the embodiment of the present invention is an active matrix OLED display, that is, As shown in FIGS. 8 and 9, each of the sub-pixel units 01 of the OLED display may further include a thin film transistor 400 disposed between the base substrate 100 and the first electrode 101 or the third electrode 201.
- the thin film transistor 400 includes a gate, a gate insulating layer, a semiconductor active layer, a source, and a drain.
- the OLED display further includes a gate line electrically connected to the gate, a gate line lead (not shown), and the like, and a data line and a data line lead electrically connected to the source (FIG. Not identified in the middle).
- the thin film transistor 400 may be of a top gate type or a bottom gate type, and the present invention is not limited thereto.
- the thin film transistor 400 may be disposed on the package layer, and the drain of the thin film transistor 400 is electrically connected to the anode or cathode of the light emitting unit on the substrate.
- the drain and the second are made The electrode 103 is electrically connected, and the second electrode 103 is required to be electrically connected to the drain through the first organic material functional layer 102 and the first electrode 101, which may cause the second electrode 103 to be short-circuited with the first electrode 101 on the one hand.
- the preparation process is relatively complicated.
- the drain is in direct contact with the first electrode 101 or the third electrode 201. As shown in FIG. 9, when the OLED display includes a flat layer 300 under the first electrode 101 and the third electrode 201, the first electrode 101 or the third electrode 201 needs to be disposed through the A via on the flat layer 300 is electrically connected to a drain of the thin film transistor 400.
- the OLED display further includes a buffer layer 500 disposed between the base substrate 100 and the thin film transistor 400, and the buffer layer 500 It is in contact with the base substrate 100.
- the buffer layer 500 may be a single layer or a multilayer structure, and the material thereof may be, for example, SiN (silicon nitride), SiOx (silicon oxide), or the like.
- the buffer layer 500 helps to improve the surface flatness and adhesion of the base substrate 10, and also contributes to improvement of water vapor permeability resistance.
- the OLED display should further include an encapsulation layer 600 for encapsulating an organic material, wherein the encapsulation layer 600 can be a thin film package. It may be a substrate package, which is not limited herein.
- At least one embodiment of the present invention further provides a method for fabricating a plurality of sub-pixel unit OLED displays. Referring to FIG. 2, the method includes the following steps:
- a first organic material functional layer 102 and a second organic material functional layer 202 are formed in the first region 10 and the second region 20.
- the first electrode 101, the first organic material functional layer 102 and the second electrode 103 constitute a first microcavity
- the electrode 203 constitutes a second microcavity
- the first microcavity and the second microcavity have different thicknesses.
- the thickness of the first microcavity may be adjusted by adjusting the thickness of the first electrode 101
- the thickness of the second microcavity may be adjusted by adjusting the thickness of the third electrode 201.
- the first region 10 and the second region 20 have different light extraction efficiencies and viewing angles by adjusting the thicknesses of the first microcavity and the second microcavity.
- the purpose of adjusting the light extraction efficiency and the viewing angle characteristic of the sub-pixel unit 01 can be achieved by adjusting the ratio and the position of the first region 10 and the second region 20, so that the OLED display has the best Light extraction efficiency and viewing angle characteristics.
- a thin film transistor 400 between the base substrate 100 and the first electrode 101 or the third electrode 201 is also formed.
- the thin film transistor 400 includes a gate electrode, a gate insulating layer, a semiconductor active layer, a source and a drain; and the drain is in direct contact with the first electrode 101 or the third electrode 201.
- At least one embodiment of the present invention further provides a method for fabricating a plurality of sub-pixel unit OLED displays. Referring to Figures 3 to 5, the method includes the following steps:
- first electrode 101 and a third electrode 201 are formed on the base substrate 100 in the first region 10 and the second region 20 of each of the sub-pixel units 01; the first electrode 101 and the first
- the three electrodes 201 each include an opaque metal layer, and the upper surface of the first electrode 101 is a flat surface, and the upper surface of the third electrode 201 is non-planar.
- the first electrode 101, the first organic material functional layer 102 and the second electrode 103 constitute a first microcavity
- the electrode 203 constitutes a second microcavity.
- the light emitted from the light emitting layer of the second organic material functional layer 202 can be made at the third electrode 201 and the fourth electrode 203 by setting the upper surface of the third electrode 201 to be non-planar.
- Multiple beam interferences are formed in multiple directions, so that light of different angles can be emitted, thereby ensuring the viewing angle characteristics thereof; and the upper surface of the first electrode 101 is made flat to ensure the intensity of the emitted light;
- the combination of the two can achieve an optimal balance between the light extraction efficiency and the viewing angle characteristic of the sub-pixel unit 01, so that the OLED display has the best light extraction efficiency and viewing angle characteristics.
- the upper surface of the third electrode 201 in contact with the second organic material functional layer 202 is made to have a certain roughness.
- the value of this roughness can be set according to the actual situation.
- the upper surface of the third electrode 201 in contact with the second organic material functional layer 202 is formed to have an uneven shape.
- the unevenness may be, for example, a curved shape, a wavy shape, a pleated shape or the like.
- forming the flat layer 300 between the base substrate 100 and the first electrode 101 and the third electrode 201 it can be realized by forming the flat layer 300 between the base substrate 100 and the first electrode 101 and the third electrode 201. That is, forming the flat layer 300 specifically includes:
- the material of the flat layer film may be a resin, and the corresponding dry gas formation may be selected.
- the flat layer film is etched by the ion atmosphere to increase its roughness or form a specific shape in the second region 20.
- control of the shape of the flat layer 300 of the second region 20 can also be achieved by heat treatment or selection of the drying process of the material itself.
- a thin film transistor 400 between the base substrate 100 and the first electrode 101 or the third electrode 201 is also formed.
- the drain of the thin film transistor 400 is in direct contact with the first electrode 101 or the third electrode 201.
- the method of the above embodiment causes the first microcavity and the second microcavity in one sub-pixel to have different microcavity effects.
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Abstract
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US14/436,014 US9673421B2 (en) | 2014-04-25 | 2014-08-07 | OLED display and manufacturing method thereof |
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US9991463B2 (en) * | 2012-06-14 | 2018-06-05 | Universal Display Corporation | Electronic devices with improved shelf lives |
CN105355798A (zh) * | 2015-11-25 | 2016-02-24 | 京东方科技集团股份有限公司 | 有机电致发光器件及其制作方法、显示装置 |
CN105789258B (zh) * | 2016-03-24 | 2019-06-11 | 深圳市华星光电技术有限公司 | 一种oled显示面板及3d立体显示装置 |
CN105742331B (zh) * | 2016-03-24 | 2019-03-26 | 深圳市华星光电技术有限公司 | 3d显示面板及3d显示装置 |
US10707285B2 (en) | 2016-09-13 | 2020-07-07 | Samsung Display Co., Ltd. | Display device |
US10021762B1 (en) * | 2017-06-30 | 2018-07-10 | Innolux Corporation | Display device |
CN107706306B (zh) * | 2017-10-26 | 2020-02-04 | 京东方科技集团股份有限公司 | 一种有机发光二极管显示基板及其制作方法、显示装置 |
CN107863450A (zh) * | 2017-10-30 | 2018-03-30 | 武汉华星光电技术有限公司 | 一种oled显示装置及其制备方法 |
KR102504436B1 (ko) * | 2017-12-18 | 2023-03-02 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 |
KR102514938B1 (ko) * | 2018-06-28 | 2023-03-27 | 엘지디스플레이 주식회사 | 표시장치 |
CN109065573A (zh) * | 2018-07-24 | 2018-12-21 | 武汉华星光电半导体显示技术有限公司 | 柔性有机发光二极管显示器及其制作方法 |
CN110265462B (zh) * | 2019-06-27 | 2021-12-10 | 昆山国显光电有限公司 | 一种显示面板和显示装置 |
CN113838889B (zh) | 2020-06-23 | 2024-08-20 | 京东方科技集团股份有限公司 | 显示基板、显示面板、电子设备和显示方法 |
CN112310319B (zh) | 2020-10-30 | 2023-04-28 | 京东方科技集团股份有限公司 | 显示面板及其制作方法和显示装置 |
CN117063627A (zh) * | 2021-05-26 | 2023-11-14 | 京东方科技集团股份有限公司 | 显示基板及其制备方法、显示装置 |
CN114171697B (zh) * | 2021-11-04 | 2023-08-25 | 合肥视涯显示科技有限公司 | 显示面板及显示装置 |
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CN1717135A (zh) * | 2004-06-18 | 2006-01-04 | 三洋电机株式会社 | 电致发光面板 |
CN203787435U (zh) * | 2014-04-25 | 2014-08-20 | 京东方科技集团股份有限公司 | 一种oled显示器 |
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US9673421B2 (en) | 2017-06-06 |
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