WO2015158089A1 - 透明显示装置及其制作方法 - Google Patents
透明显示装置及其制作方法 Download PDFInfo
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- WO2015158089A1 WO2015158089A1 PCT/CN2014/084934 CN2014084934W WO2015158089A1 WO 2015158089 A1 WO2015158089 A1 WO 2015158089A1 CN 2014084934 W CN2014084934 W CN 2014084934W WO 2015158089 A1 WO2015158089 A1 WO 2015158089A1
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- WIPO (PCT)
- Prior art keywords
- type semiconductor
- light
- display device
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- solar cell
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 63
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 63
- 239000010703 silicon Substances 0.000 claims abstract description 63
- 239000004065 semiconductor Substances 0.000 claims description 145
- 239000000758 substrate Substances 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000010409 thin film Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Classifications
-
- 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
- H10K59/60—OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
-
- 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
- H10K59/10—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
-
- 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
- H10K59/10—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
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/126—Shielding, e.g. light-blocking means over the TFTs
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/13—Active-matrix OLED [AMOLED] displays comprising photosensors that control luminance
-
- 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
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
Definitions
- Embodiments of the present invention relate to a transparent display device and a method of fabricating the same. Background technique
- Transparent display has a wide range of applications, can be combined with multi-touch, intelligent display and other technologies, as a terminal for public information display, used in department store display windows, refrigerator door perspective, car front windshield, vending machines and other fields, Have synergistic effects such as display, interaction, and advertising. Due to its unique use scene and intelligent scene switching, the transparent display products have attracted more and more attention in the field of special display.
- the display principle of the transparent display technology of the OLED display device is as shown in FIG. 1.
- the display panel includes a plurality of display units 100, each of which includes sub-pixels of three primary colors of red (R), green (G), and blue (B). 10 (the gate line 31 and the data line 32 intersect to form a plurality of sub-pixels 10), and each of the sub-pixels 10 includes a light-emitting region 11 and a light-transmitting region 12.
- the light-emitting area 11 is displayed by light-emitting of an organic light-emitting diode or the like, and the light-transmitting area 12 is not provided with any pixel structure, and is mainly used for light transmission. As the brightness of the light-emitting area 11 increases, the light transmitted through the light-transmitting area 12 increases, thereby increasing the light transmittance of the pixel and achieving the effect of transparent display. Summary of the invention
- Embodiments of the present invention provide a transparent display device and a method of fabricating the same, by arranging a silicon solar cell in a light transmitting region of the display device, absorbing light energy in a direction perpendicular to a light transmitting direction of the light transmitting region, and converting the same For electric energy.
- Embodiments of the present invention provide a transparent display device, the transparent display device including a display area, the display area includes a light transmitting area and an opaque area, wherein a portion of the light transmitting area is provided with at least one silicon A solar cell that absorbs light energy in a direction perpendicular to a light transmission direction of the light transmitting region and converts it into electric energy.
- the silicon solar cell includes a P-type semiconductor and an N-type semiconductor, and the P-type semiconductor and the N-type semiconductor are disposed in the same layer.
- an intrinsic is placed between the P-type semiconductor and the N-type semiconductor Floor.
- the P-type semiconductor and the N-type semiconductor are both heavily doped.
- the display device further includes a gate line and a data line, and the P-type semiconductor or the N-type semiconductor of the silicon solar cell is directly in electrical contact with the gate line and/or the data line, to the The gate lines and/or data lines provide electrical signals.
- the display area includes a plurality of sub-pixels, each of the sub-pixels includes a light transmissive area and an opaque area, and a silicon solar cell is disposed in the light transmissive area of at least one of the sub-pixels.
- the light transmissive region of each of the sub-pixels is provided with a silicon solar cell.
- the display device is an OLED display device, and each of the sub-pixels includes a light-emitting region and a light-transmitting region.
- a portion of the light-transmitting region adjacent to one side of the light-emitting region is provided with a silicon solar cell.
- An embodiment of the present invention further provides a method for fabricating a transparent display device.
- the display region of the transparent display device includes a light transmitting region and an opaque region, and the method includes: a substrate in a portion of the light transmitting region A silicon solar cell is directly formed on the substrate, and the silicon solar cell absorbs light energy in a direction perpendicular to the light transmission direction of the light transmitting region and converts it into electric energy.
- a semiconductor layer is formed on the substrate, wherein the semiconductor layer includes a corresponding P-type semiconductor And a portion corresponding to the N-type semiconductor; and ion-doping the portion of the semiconductor layer corresponding to the P-type semiconductor and the portion corresponding to the N-type semiconductor to form a P-type semiconductor and an N-type semiconductor.
- the portion of the semiconductor corresponding P-type semiconductor is ion-doped by using the first mask. Forming a P-type semiconductor; and ion-doping the portion of the semiconductor corresponding to the N-type semiconductor with the second mask to form an N-type semiconductor.
- the semiconductor layer further includes: an active semiconductor.
- the method further includes: forming a gate metal layer and a source/drain metal layer on the base substrate, wherein the gate metal layer includes a gate line, the source/drain metal layer includes a data line;
- the gate lines and/or the data lines are in direct electrical contact with the P-type semiconductor or N-type semiconductor of the silicon solar cell to form an electrical connection.
- 1 is a schematic view of a transparent display device
- FIG. 2 is a schematic diagram of a transparent display device according to an embodiment of the present invention.
- Figure 3 is a cross-sectional view of the A-A' of the display device shown in Figure 2;
- Figure 4 is a cross-sectional view of the display device of Figure 2 taken along line BB';
- FIG. 5 is a schematic diagram of a method for directly forming a silicon solar cell on a substrate according to an embodiment of the present invention. detailed description
- An embodiment of the present invention provides a transparent display device, wherein a display area of the transparent display device includes a light transmitting area and an opaque area, and at least one silicon solar cell is disposed in a partial area of the light transmitting area, The silicon solar cell absorbs light energy in a direction perpendicular to the light transmission direction of the light transmitting region and converts it into electric energy.
- the organic electroluminescent (EL) elements and driving circuits of the OLED display device are generally opaque, and these non-transparent devices can be highly integrated in each pixel to form a "region" without opaque devices. , as the pixel display grayscale value increases, the pixel The remaining transparent areas transmit more light, which improves the light transmittance of the pixels and achieves a transparent display.
- the display area of the transparent display device includes a light transmitting area and an opaque area.
- the opaque area is mainly used to illuminate the pixels, and the light-transmitting area is mainly used for light transmission so that the display device can see the objects behind.
- the positional relationship between the light transmitting area and the opaque area of the display area may be various.
- one pixel unit may include red, green, blue, and a transparent light transmissive area, or the light transmissive area and the opaque area may be arranged in a line spacing.
- the positional relationship between the light-transmitting area and the opaque area of the display area is not specifically limited in the embodiment of the present invention, and may be changed as needed.
- At least one silicon solar cell is disposed in a portion of the light transmissive region, and the silicon solar cell absorbs light energy in a direction perpendicular to a light transmitting direction of the light transmitting region.
- the light transmission direction of the transparent region 12 of the transparent display unit 100 is generally a direction perpendicular to the substrate, that is, a direction indicated by a broken line arrow in FIG. 3, and the present invention
- the silicon solar cell mainly absorbs light energy in a direction perpendicular to a light transmitting direction of the light transmitting region 12, that is, light energy in an arrow direction (a direction parallel to the substrate surface) shown in FIGS. 2 and 3. It converts light energy into electrical energy that can be applied to other electronic devices.
- a transparent display device is provided in the embodiment of the present invention, wherein a portion of the transparent display device is provided with at least one silicon solar cell in a partial region of the light transmitting region, and the silicon solar cell is in a direction perpendicular to the light transmitting direction of the light transmitting region. Absorbs light energy and converts it into electrical energy, which can be applied to the power supply of display devices or other components or devices to save energy and achieve efficient use of photovoltaics.
- the silicon solar cell comprises a P-type semiconductor 21 and
- the N-type semiconductor 22 is provided, and the P-type semiconductor 21 and the N-type semiconductor 22 are disposed in the same layer.
- the P-type semiconductor is doped with a trivalent element in the semiconductor material silicon or germanium crystal;
- the N-type semiconductor is doped with a pentavalent element in the semiconductor material silicon or germanium crystal.
- the principle of a silicon solar cell is that when a P-type semiconductor and an N-type semiconductor are combined, a special thin film, that is, a PN junction, is formed in the interface region between the two semiconductors. This is because there are many holes in the P-type semiconductor, and there are many free electrons in the N-type semiconductor. That is, a plurality of N-type semiconductors are electrons, and a minority is a hole; and a P-type semiconductor is a hole, and a minority is an electron.
- the P-type semiconductor 21 and the N-type semiconductor 22 are disposed in the same layer, wherein the P-type semiconductor 21 is on the side close to the light.
- the N-type semiconductor 22 is on the side close to the light, and in either case, the principle of operation of the silicon solar cell is not affected.
- an intrinsic layer is disposed between the P-type semiconductor and the N-type semiconductor. That is, a PIN type solar cell is formed. This solar cell is more sensitive to sensitization and detection of radiation.
- the P-type semiconductor and the N-type semiconductor are both heavily doped. It should be noted that both the P-type semiconductor and the N-type semiconductor are heavily doped to generate a large amount of current.
- the P-type semiconductor and the N-type semiconductor may be lightly doped or the like depending on the power supply target of the silicon solar cell.
- the display device further includes a gate line 31 and a data line 32, and a P-type semiconductor or an N-type semiconductor of the silicon solar cell and the gate line 31 and/or
- the data lines 32 are in direct contact to form an electrical connection, and electrical signals are provided to the gate lines 31 and/or the data lines 32.
- the embodiment of the present invention is described by taking an example in which an electric connection is made by directly contacting a P-type semiconductor of the silicon solar cell with the gate line 31, and an electrical signal is supplied to the gate line 31.
- the direct contact electrical connection between the P-type semiconductor and the gate line and/or the data line may be directly connected to the gate line and/or the data line through the via and the metal line, and the gate line and/or Or the data line provides an electrical signal.
- the electrical energy of the silicon solar cell can also be connected to other conductive portions to provide electrical signals to other conductive portions.
- the P-type semiconductor or the N-type semiconductor may be electrically connected to other conductive portions via wires or the like.
- the display area includes a plurality of sub-pixels, each of the sub-pixels includes a light transmissive area and a light-impermeable area, and a silicon solar cell is disposed in the light transmissive area of the at least one of the sub-pixels.
- the silicon solar cell is disposed in the light transmissive region of the at least one of the sub-pixels, and the silicon solar cell may be disposed only in the transparent region corresponding to the red sub-pixel, or may be transparent to the corresponding red sub-pixel and the blue sub-pixel.
- a silicon solar cell is disposed in the region, and no silicon solar cell or the like is disposed in the light transmissive region corresponding to the green sub-pixel.
- a silicon solar cell may be disposed in a light transmissive region of a portion of the sub-pixels to generate electric energy through the silicon solar cell, and the other sub-pixels are not provided with a silicon solar cell to ensure a transparent display function of the display device.
- a light-emitting area of each of the sub-pixels is provided with a silicon solar cell.
- a silicon solar cell is disposed in the light-transmitting regions corresponding to the red (R) sub-pixel, the blue (G) sub-pixel, and the green (B) sub-pixel, which can further increase the amount of electric energy conversion of the silicon solar cell on the panel.
- the display device is an OLED display device, and each of the sub-pixels includes a light-emitting region and a light-transmitting region.
- the red sub-pixel 10 includes a light-emitting region 11 and a light-transmitting region 12. It should be noted that, since the OLED display device is a self-luminous display device, the sub-pixel 10 includes a light-emitting region 11 and a light-transmitting region 12, and the light-emitting region 11 is an opaque region.
- the sub-pixel may include a pixel region and a light transmissive region, and the liquid crystal is deflected by the pixel electrode and the common electrode to realize display, which is an opaque region;
- the display device transmits light to achieve a transparent display.
- a silicon solar cell is disposed in a portion of the light transmitting region near a side of the light emitting region. As shown in Fig. 2, a silicon solar cell is disposed in a region of the light-transmitting region 12 near the side of the light-emitting region 11. This can reduce the area occupied by silicon solar cells in too many light-emitting areas and improve the transparency of the transparent display device.
- the embodiment of the present invention further provides a method for fabricating a transparent display device, wherein the display area of the transparent display device includes a light transmitting area and an opaque area, and the method includes:
- a silicon solar cell is directly formed on a corresponding region on the substrate substrate corresponding to the partial region of the light-transmitting region, and the silicon solar cell absorbs light energy in a direction perpendicular to the light-transmitting direction of the light-transmitting region and converts it into electric energy.
- directly forming a silicon solar cell on the substrate of the transparent region portion includes:
- Step 101 Form a semiconductor layer on a base substrate, wherein the semiconductor layer includes a portion corresponding to the P-type semiconductor and a portion corresponding to the N-type semiconductor.
- Forming the semiconductor layer on the base substrate may be either forming a semiconductor thin film on the base substrate and forming a semiconductor pattern including a portion corresponding to the P-type semiconductor and a portion corresponding to the N-type semiconductor by a patterning process.
- Step 102 ion doping the portion of the semiconductor layer corresponding to the P-type semiconductor and the portion corresponding to the N-type semiconductor to form a P-type semiconductor and an N-type semiconductor.
- performing ion doping separately on the portion of the semiconductor layer corresponding to the P-type semiconductor and the portion corresponding to the N-type semiconductor includes:
- the portion of the semiconductor corresponding to the N-type semiconductor is ion-doped to form an N-type semiconductor by a second mask.
- the ion doping of the portion of the semiconductor corresponding P-type semiconductor by using the first mask to form the P-type semiconductor includes: exposing only the portion of the semiconductor layer corresponding to the P-type semiconductor through the first mask, and blocking other portions to The exposed portion of the corresponding P-type semiconductor is ion doped to form a P-type semiconductor.
- the ion doping of the portion of the semiconductor corresponding N-type semiconductor by the second mask to form the N-type semiconductor comprises: exposing only the portion of the semiconductor layer corresponding to the N-type semiconductor through the second mask, and occluding the other portion to The exposed portion of the corresponding N-type semiconductor is ion doped to form an N-type semiconductor.
- the semiconductor layer further includes: an active semiconductor. Since a thin film transistor is also formed on the base substrate to control pixel charging, the semiconductor layer further includes an active semiconductor.
- the active semiconductor may be formed by forming a semiconductor thin film on a base substrate, and forming a pattern including a portion corresponding to the P-type semiconductor, a portion corresponding to the N-type semiconductor, and an active semiconductor by a patterning process. This can further reduce the manufacturing process and reduce production costs.
- the method further includes:
- the gate lines and/or the data lines are in direct electrical contact with the P-type semiconductor or N-type semiconductor of the silicon solar cell to form an electrical connection.
- the substrate substrate includes other film or layer structures to realize the display function.
- a gate metal layer is formed on the base substrate, the gate metal layer includes a gate line and a gate; the source/drain metal layer, and the source/drain metal layer includes a data line and a source and a drain.
- the gate line provides a gate signal to the gate, the data line supplies a source signal to the source, the drain charges the pixel electrode, and the gate, source and drain are the three poles of the thin film transistor.
- the gate line and/or the data line are in direct contact with the P-type semiconductor or the N-type semiconductor of the silicon solar cell to form an electrical connection, and the electric energy converted by the silicon solar cell can be directly applied to the driving film.
- Transistor The electrical energy converted by the silicon solar cell can also be used for other conductive parts by other voltage processing or the like.
- An embodiment of the present invention provides a transparent display device and a method for fabricating the same, wherein a portion of the transparent region of the transparent display device is provided with at least one silicon solar cell, and the silicon sun
- the battery can absorb light energy in a direction perpendicular to the light transmission direction of the light transmitting region to convert it into electric energy, and can be applied to power supply of a display device or other components or devices, thereby saving energy and realizing efficient use of photovoltaics.
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Sustainable Development (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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- Thin Film Transistor (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/436,570 US9502479B2 (en) | 2014-04-16 | 2014-08-21 | Transparent display device and manufacturing method thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410153794.5A CN103985734B (zh) | 2014-04-16 | 2014-04-16 | 一种透明显示装置及其制作方法 |
CN201410153794.5 | 2014-04-16 |
Publications (1)
Publication Number | Publication Date |
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WO2015158089A1 true WO2015158089A1 (zh) | 2015-10-22 |
Family
ID=51277638
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/CN2014/084934 WO2015158089A1 (zh) | 2014-04-16 | 2014-08-21 | 透明显示装置及其制作方法 |
Country Status (3)
Country | Link |
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US (1) | US9502479B2 (zh) |
CN (1) | CN103985734B (zh) |
WO (1) | WO2015158089A1 (zh) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103985734B (zh) * | 2014-04-16 | 2017-03-08 | 京东方科技集团股份有限公司 | 一种透明显示装置及其制作方法 |
CN104201292B (zh) | 2014-08-27 | 2019-02-12 | 京东方科技集团股份有限公司 | 一种有机电致发光器件及其制备方法 |
CN104867964B (zh) | 2015-05-18 | 2019-02-22 | 京东方科技集团股份有限公司 | 阵列基板、其制造方法以及有机发光二极管显示装置 |
CN105070218A (zh) * | 2015-09-10 | 2015-11-18 | 上海和辉光电有限公司 | 太阳能显示屏以及太阳能手机 |
KR102435391B1 (ko) * | 2015-09-25 | 2022-08-23 | 삼성디스플레이 주식회사 | 표시 장치 |
KR102500161B1 (ko) * | 2016-01-15 | 2023-02-16 | 삼성디스플레이 주식회사 | 유기 발광 표시 장치 |
JP6772277B2 (ja) * | 2016-09-26 | 2020-10-21 | パイオニア株式会社 | 発光装置 |
CN109904189B (zh) * | 2019-03-15 | 2021-03-02 | 京东方科技集团股份有限公司 | 像素单元及阵列基板、显示装置 |
CN110047906B (zh) * | 2019-05-21 | 2022-10-18 | 京东方科技集团股份有限公司 | 基于透明光电二极管的显示装置、显示面板及其制造方法 |
CN113330577A (zh) * | 2019-05-28 | 2021-08-31 | 深圳市柔宇科技股份有限公司 | Oled双面显示面板 |
CN110850616A (zh) * | 2019-11-29 | 2020-02-28 | 上海天马微电子有限公司 | 显示装置 |
CN111524955A (zh) * | 2020-05-08 | 2020-08-11 | 义乌清越光电科技有限公司 | 一种自发电显示屏幕及显示设备 |
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CN103985734B (zh) | 2017-03-08 |
CN103985734A (zh) | 2014-08-13 |
US20160181330A1 (en) | 2016-06-23 |
US9502479B2 (en) | 2016-11-22 |
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