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公开(公告)号：EP4207325A1
公开(公告)日：2023-07-05
申请号：EP21942722.6
申请日：2021-11-15
发明人： HU, Yue , HANAWA, Koji , ZHANG, Dacheng , ZHANG, Meixiu
摘要： The present disclosure provides a display device and a method for manufacturing the same, the display device includes an anode layer, a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, an electron injection layer and a cathode layer arranged in sequence; the electron injection layer comprises at least one electron injection layer, at least one high impedance layer is further arranged between at least one of the electron injection layers and the cathode layer, and the resistivity of the electron injection layer and the resistivity of the cathode layer are both smaller than the resistivity of the high impedance layer. The display device and the method for manufacturing the same provided by the present disclosure can solve the problem of short circuit between cathode and anode of the display device caused by particles, significantly reduce the number of dark spots on the panel of the display device, and improve the panel yield of the display device.
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公开(公告)号：EP4188055A1
公开(公告)日：2023-05-31
申请号：EP23152180.8
申请日：2019-10-21
发明人： GAO, Xinwei , MA, Kaihong , ZHANG, Dacheng , LIU, Lang , XU, Chen
IPC分类号： H10K59/131 , H10K50/842 , H10K50/844 , G02F1/1333
摘要： A display panel (10) and a manufacture method thereof, and a display apparatus (100) are provided. The display panel (10) has a display region (101) and a border region (102) that surrounds the display region (101) and includes a peripheral circuit region (1020) and a peripheral region; the peripheral circuit region (1020) is between the display region (101) and the peripheral region. At least a part of a barrier structure (3) of the display panel (10) is in the peripheral circuit region (1020), and the barrier structure (3) includes an organic barrier layer (31) including an opening (3101) passing through the organic barrier layer (31) and an inorganic barrier layer (32) covering the organic barrier layer (31) and filling the opening (3101); an extension direction of the opening (3101) is same as that of an edge, close to the opening (3101), of the display panel (10); the peripheral circuit is in the peripheral circuit region (1020).
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公开(公告)号：EP4053904A1
公开(公告)日：2022-09-07
申请号：EP20870454.4
申请日：2020-08-19
发明人： XU, Pan , LI, Yongqian , WANG, Guoying , ZHANG, Dacheng , XU, Chen , LIU, Lang , ZHANG, Xing , WANG, Ling , LIN, Yicheng , HAN, Ying
摘要： Provided are a display substrate, a manufacturing method thereof and a display apparatus. The display substrate includes multiple sub-pixels, wherein each sub-pixel includes a light-emitting region and a non-light-emitting region, and each sub-pixel is provided with a drive circuit; the drive circuit includes a storage capacitor and multiple transistors; for each sub-pixel, the multiple transistors are in the non-light-emitting region, the storage capacitor is a transparent capacitor, and an orthographic projection of the storage capacitor on a base substrate coincides with the light-emitting region. A first electrode of the storage capacitor is disposed in a same layer as an active layer of the multiple transistors, but in a different layer from source and drain electrodes of the multiple transistors, and a second electrode of the storage capacitor is on a side of the first electrode close to the base substrate. A first electrode of a drive transistor is connected to the second electrode through an active layer of the drive transistor, and a first electrode of a sense transistor is connected to the second electrode through an active layer of the sense transistor.
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公开(公告)号：EP4050662A1
公开(公告)日：2022-08-31
申请号：EP21743021.4
申请日：2021-06-08
发明人： ZHANG, Dacheng , XU, Chen
IPC分类号： H01L27/32
摘要： A display substrate (10) and a display apparatus (30) are provided. The display substrate (10) includes a first conductive structure (110) including a first surface (111) and a third surface (113) that are opposite and a second surface (112) and a fourth surface (114) that are opposite, and the first surface and the second surface are made of a same material. The first surface (111) and the second surface (112) respectively have different angles with a plate surface of the base substrate (101). The first surface (111) is provided with a first surface microstructure (11), and the second surface (112) is provided with a second surface microstructure (12); the first surface microstructure (11) has a first cross section (11a) perpendicular to the base substrate (101), the first cross section (11) has a first orthogonal projection (C1C2) on the third surface (113), and a length of the first orthogonal projection (C1C2) is less than a length of the first surface microstructure (11) in the first cross section (11a); and the second surface microstructure (12) has a second cross section (12a) perpendicular to the base substrate (101), the second cross section (12a) has a second orthogonal projection (D1D2) on the fourth surface (114), and a length of the second orthogonal projection (D1D2) is less than a length of the second surface microstructure (12) in the second cross section (12a). The display substrate (10) can effectively increase the yield.
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公开(公告)号：EP4020608A1
公开(公告)日：2022-06-29
申请号：EP19932228.0
申请日：2019-08-23
发明人： LIU, Li , WEI, Junbo , LU, Pengcheng , YANG, Shengji , LI, Yunlong , SHI, Rongrong , ZHANG, Dacheng
摘要： A display panel and a method for manufacturing a display panel are disclosed. The display panel includes a first sub-pixel region and a second sub-pixel region which are adjacent to each other. The display panel includes a substrate and a first conductive layer, an organic functional layer, and a second conductive layer which are sequentially on the substrate. The organic functional layer includes a charge generation layer, and the charge generation layer includes a first charge generation layer portion and a second charge generation layer portion which are in the first sub-pixel region and the second sub-pixel region, respectively. The display panel further includes a spacer between the first sub-pixel region and the second sub-pixel region, and the spacer disconnects the first charge generation layer portion and the second charge generation layer portion. The charge generation layer further includes a third charge generation layer portion which is between the spacer and the second conductive layer and disconnected from the first charge generation layer portion and the second charge generation layer portion, respectively. The display panel can effectively prevent the electrical leakage and color cross-talk between sub-pixels.
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公开(公告)号：EP4012775A1
公开(公告)日：2022-06-15
申请号：EP20904245.6
申请日：2020-05-15
发明人： LI, Meng , LI, Yongqian , XU, Chen , ZHANG, Dacheng , WANG, Jingquan , SUN, Shi
IPC分类号： H01L27/32
摘要： A pixel driving circuit, a display device and an electronic device are provided. The pixel driving circuit includes: a first sub-pixel driving circuit (SPC1), a second sub-pixel driving circuit (SPC2), a third sub-pixel driving circuit (SPC3), and a fourth sub-pixel driving circuit (SPC4) sequentially arranged in a first direction; a detection line (SL) extending in a second direction substantially perpendicular to the first direction and located between the second sub-pixel driving circuit (SPC2) and the third sub-pixel driving circuit (SPC3), wherein the detection line (SL) is configured to obtain a detection sampling signal from each sub-pixel driving circuit; a first power line (VDDL) extending in the second direction and configured to provide a constant first voltage signal (VDD) to each sub-pixel driving circuit; and a second power line (VSSL) extending in the second direction and configured to provide a constant second voltage signal (VSS) to a pixel where the pixel driving circuit is located, wherein one of the first power line (VDDL) and the second power line (VSSL) is provided on a side of the second sub-pixel driving circuit (SPC2) away from the third sub-pixel driving circuit (SPC3), and the other of the first power line and the second power line is provided on a side of the third sub-pixel driving circuit (SPC3) away from the second sub-pixel driving circuit (SPC2).
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公开(公告)号：EP4270481A1
公开(公告)日：2023-11-01
申请号：EP22836766.0
申请日：2022-06-28
发明人： XU, Jingjing , LI, Pan , ZHANG, Dacheng
IPC分类号： H01L27/142 , H01L21/02
摘要： A display substrate, a preparation method thereof, and a display apparatus, the display substrate includes a base substrate; a drive circuit layer provided on the base substrate; a light-emitting structure layer provided on a side of the drive circuit layer away from the base substrate, the light-emitting structure layer includes a pixel defining layer and an organic light-emitting layer, the pixel defining layer defines multiple sub-pixel regions and includes a first opening at least partially exposing the drive circuit layer, the organic light-emitting layer is located in the sub-pixel region and is overlapped with the first opening of the pixel defining layer; and a color film structure layer provided on a side of the light-emitting structure layer away from the base substrate, the color film structure layer includes a color film and a black matrix, the black matrix includes a second opening at least partially exposing the first opening, the color film provided in the second opening, the black matrix includes a first sub-side, and the first sub-side includes a fold line structure.
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公开(公告)号：EP4141944A1
公开(公告)日：2023-03-01
申请号：EP21726546.1
申请日：2021-04-21
发明人： HUANG, Kuanta , LEE, Yuhao , ZHANG, Dacheng , TONG, Hui , SHEN, Xiaobin , LI, Shipeng , YANG, Chao , LI, Dongsheng
摘要： A display device, a display panel, and a manufacturing method thereof are proposed. The display panel includes a substrate (1), a first insulation layer (2), a first electrode layer (3), a pixel definition layer (4), a light-emitting function layer (5) and a second electrode (6). The first insulation layer (2) is provided on a side of the substrate (1). The first insulation layer (2) comprises a plurality of pixel regions (202) distributed in an array and a seperation region (201) separating the pixel regions (202). The first electrode layer (3) is arranged on the surface of the first insulation layer (2) away from the substrate (1), and includes a plurality of first electrodes (31). The orthographic projection of each first electrode (31) on the first insulation layer (2) is located within a respective pixel region (202). The pixel definition layer (4) is arranged on the surface of the first insulation layer (2) away from the substrate (1), and exposes each first electrode (31). The pixel definition layer (4) is formed with a pixel definition groove (41) in the area corresponding to the seperation region (201), and the middle part of the pixel definition groove (41) has a first protrusion (42) protruding in a direction away from the substrate (1). A sub-groove (40) is formed between the sidewall of the first protrusion (42) and the sidewall of the pixel definition groove (41). The light-emitting functional layer (5) covers the pixel definition layer (4) and the first electrodes (31) and the first insulation layer (2) exposed by the pixel definition layer (4). The second electrode (6) covers the light-emitting functional layer (5).
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公开(公告)号：EP4071841A1
公开(公告)日：2022-10-12
申请号：EP20940352.6
申请日：2020-06-12
发明人： GAO, Xinwei , ZHANG, Dacheng , LIU, Lang , XU, Chen
摘要： A display panel and a manufacturing method therefor, and a display device. The display panel comprises an array substrate, a packaging cover plate, and a sealant. The array substrate comprises a display region and a non-display region at least partially surrounding the display region. The display region comprises a plurality of pixels arranged in an array, each pixel comprises a plurality of sub-pixels, and each sub-pixel comprises a light emitting component. The packaging cover plate is disposed opposite to the array substrate, and comprises a first substrate and a plurality of organic layers. The plurality of organic layers are located on the side of the first substrate close to the array substrate. The sealant is located in the non-display region and located between the array substrate and the packaging cover plate to bond the array substrate and the packaging cover plate together. There is a spacer region between the organic layer closest to the sealant in the direction from the display region to the sealant among the plurality of organic layers and the sealant. The organic layer closest to the sealant is separated from the sealant by the spacer region, and the spacer region is located in the non-display region.
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公开(公告)号：EP4068379A1
公开(公告)日：2022-10-05
申请号：EP19945472.9
申请日：2019-11-29
发明人： WU, Zhongyuan , LI, Yongqian , YUAN, Can , LI, Meng , YUAN, Zhidong , FENG, Xuehuan , LIU, Lang , ZHANG, Dacheng
摘要： The present disclosure relates to the field of display technologies, and provides an array substrate, a manufacturing method thereof, and a display panel. In the array substrate, a substrate is provided with a first transistor and a second transistor, a first electrode of the first transistor is electrically connected to a gate of the second transistor; a conductive layer is disposed on the substrate, and includes a first conductor portion, a first semiconductor portion, a second conductor portion that are sequentially connected along a first direction; a first gate insulating layer is disposed on a side of the conductive layer away from the substrate; a first gate layer is disposed on a side of the first gate insulating layer away from the substrate to form the gate of the second transistor; a dielectric layer is disposed on the substrate to cover a part of the first conductor portion, a part of the second conductor portion and a part of the first gate layer, and an orthographic projection of a first via hole disposed on the dielectric layer on the substrate overlaps with orthographic projections of at least a part of the first conductor portion, at least a part of the second conductor portion and the first gate layer on the substrate; and a first source/drain layer is disposed on a side of the dielectric layer away from the substrate to cover the first via hole.
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