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41.发明申请公开(公告)号：US20200273933A1
公开(公告)日：2020-08-27
申请号：US16499809
申请日：2019-04-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan XU , Yicheng LIN , Cuili GAI , Ling WANG , Yongqian LI
Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The manufacturing method includes forming a PIN photodiode on a base substrate, forming an insulative protection layer covering the PIN photodiode, and forming an oxide TFT. The PIN photodiode is formed prior to the formation of an active layer of the oxide TFT, and the insulative protection layer covering the PIN photodiode is formed prior to the formation of a source electrode and a drain electrode of the oxide TFT.
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公开(公告)号：US20200152101A1
公开(公告)日：2020-05-14
申请号：US16086675
申请日：2018-03-02
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian LI , Pan XU , Quanhu LI
Abstract: A circuitry and a method for detecting a failed pixel, and a display device are provided. The circuitry for detecting the failed pixel includes a display control circuit and a failed pixel detection circuit. The display control circuit is connected to a pixel driving circuit, and configured to control, at detection voltage write-in stage and failed pixel detection stage, the pixel driving circuit to cause light-emitting element not to emit light. The failed pixel detection circuit is connected to first electrode of the light-emitting element via failure sense line, and configured to apply a reference voltage to the first electrode of the light-emitting element via the failure sense line at the detection voltage write-in stage, detect a potential at the first electrode of the light-emitting element at the failed pixel detection stage, and determine, in accordance with the potential, whether the pixel circuit is failed.
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43.发明申请公开(公告)号：US20180261663A1
公开(公告)日：2018-09-13
申请号：US15570615
申请日：2017-05-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Yongqian LI , Pan XU , Quanhu LI
IPC: H01L27/32 , G09G3/3225 , H01L51/52 , H01L51/50 , H01L51/56
CPC classification number: H01L27/3276 , G09G3/3225 , G09G3/3233 , G09G2300/0842 , G09G2320/0295 , G09G2320/0693 , H01L27/1244 , H01L27/322 , H01L27/3246 , H01L27/3258 , H01L27/3262 , H01L27/3265 , H01L51/5036 , H01L51/5206 , H01L51/5221 , H01L51/56
Abstract: An OLED array substrate and a manufacturing method thereof, an array substrate and a display device are provided. The OLED array substrate includes a wire; a plurality of pixel units, each of which includes an OLED light-emitting unit, a driving transistor and a storage capacitor; an insulation layer which covers the driving transistor, the storage capacitor and the wire; and a conductive layer, which is on the insulation layer and is configured to provide a common voltage to the plurality of the pixel units. At least one of the wire, the driving transistor and the storage capacitor is overlapped with the conductive layer in a direction perpendicular to the OLED array substrate.
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公开(公告)号：US20180108292A1
公开(公告)日：2018-04-19
申请号：US15527793
申请日：2016-07-01
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Pan XU
CPC classification number: G09G3/2092 , G09G3/20 , G09G2300/0426 , H01L27/124 , H05K1/118 , H05K1/142 , H05K1/147 , H05K1/189 , H05K2201/049 , H05K2201/056 , H05K2201/09027 , H05K2201/09227 , H05K2201/10128 , H05K2201/10522
Abstract: A display device includes a display panel and a control circuit board configured to provide a driving signal to the display panel. The display panel includes a plurality of pixel structures of which pixel structures arranged in one row are connected to one gate line. Pixel structures arranged in one column are connected to one data line. The control circuit board includes a driving chip, an end portion of each of the gate lines and an end portion of each of the data lines are respectively provided with panel pins. The control circuit board is provided with circuit board pins to be electrically connected with the panel pins, and connecting lines through which pins of the control circuit board are connected to the circuit board pins. A spacing between adjacent circuit board pins is larger than a spacing between adjacent pins of the driving chip connected with the circuit board pins.
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公开(公告)号：US20170193904A1
公开(公告)日：2017-07-06
申请号：US15102993
申请日：2015-10-23
Inventor： Pan XU , Zhongyuan WU , Yuting ZHANG , Yongqian LI
IPC: G09G3/3258 , G09G3/3241
CPC classification number: G09G3/3258 , G09G3/3241 , G09G2300/0819 , G09G2300/0842 , G09G2310/0248 , G09G2310/08 , G09G2320/0233 , G09G2320/043
Abstract: There are disclosed a pixel circuit and a driving method of the same and a display apparatus. The pixel circuit comprises: a driving transistor (Tr), a storage capacitor (Cs), a data writing module (10), a light-emitting element (20) and a predetermined voltage writing module (30). A first terminal of the storage capacitor (Cs) is connected to a gate of the driving transistor (Tr) and a second terminal thereof is connected to a second electrode of the driving transistor (Tr). The predetermined voltage writing module (30) is configured to make the second electrode of the driving transistor (Tr) reach a predetermined potential in a pre-charging phase and a compensating phase; and the data writing module (10) is configured to store a data voltage of a data line into the storage capacitor (Cs) in the compensating phase. In the pixel circuit and the driving method thereof and the display apparatus, the driving current is not affected by the threshold voltage, and influence of the voltage across the light-emitting element on the driving current is eliminated, thereby the uniformity of luminance of the light-emitting element is raised and improving the display effect of the display apparatus is improved.
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Patent Agency Ranking
公开(公告)号：US20250095547A1
公开(公告)日：2025-03-20
申请号：US18576548
申请日：2022-12-23
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying HAN , Pan XU , Xing ZHANG , Chengyuan LUO , Guangshuang LV , Donghui ZHAO , Cheng XU
IPC: G09G3/32 , G09G3/3233
Abstract: Provided are a display substrate and a display device. The display substrate includes a base substrate and a plurality of sub-pixels, the sub-pixel includes a pixel circuit and a light-emitting element, the pixel circuit is configured to drive the light-emitting element, and the light-emitting element includes a first electrode, a second electrode, and a light-emitting functional layer located therebetween; the pixel circuit includes a driving transistor, and the first electrode of the light-emitting element is electrically connected to a first electrode of the driving transistor; the plurality of sub-pixels include a first sub-pixel and a second sub-pixel, the first sub-pixel is adjacent to the second sub-pixel, and an orthographic projection of the first electrode of the light-emitting element of the first sub-pixel on the base substrate does not overlap an orthographic projection of the pixel circuit of the second sub-pixel on the base substrate.
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公开(公告)号：US20250089503A1
公开(公告)日：2025-03-13
申请号：US18959688
申请日：2024-11-26
Inventor： Yuanjie XU , Benlian WANG , Lili DU , Zhenhua ZHANG , Yuxin ZHANG , Pan XU
IPC: H10K59/131 , G09G3/3233 , H10K59/12 , H10K59/121 , H10K59/35
Abstract: Provided are a display substrate, a preparation method thereof, and a display device. The display substrate includes a display region and a bonding region on one side of the display region. The bonding region at least includes a lead area; the display region includes a plurality of data lines and a plurality of data fanout lines, the lead area includes a plurality of lead wires, and orthographic projections of the plurality of data lines and the plurality of data fanout lines on a plane of the display substrate are at least partially overlapped. At least one lead wire is connected to the data line through the data fanout line. In the lead area, an orthographic projection of any one of the lead wires on the plane of the display substrate and orthographic projections of other lead wires on the plane of the display substrate have no overlap region.
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公开(公告)号：US20240428731A1
公开(公告)日：2024-12-26
申请号：US18288451
申请日：2023-01-03
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying HAN , Pan XU , Mingi CHU , Donghui ZHAO , Xing ZHANG , Chengyuan LUO , Guangshuang LV , Miao LIU , Xing YAO
IPC: G09G3/3233 , G09G3/3266 , G09G3/3291
Abstract: A pixel driving circuit is provided to include: a driving transistor; a data writing circuit configured to write a display data voltage from the data line to a first node in a display driving process, and sequentially write a sensing data voltage and a reset data voltage from the data line to the first node in a threshold voltage sensing process; a threshold compensation circuit configured to write a reference voltage from a reference voltage supply terminal to the first node and write a first compensation voltage to a second node in the display driving process, and write a second compensation voltage to the second node when a voltage at the first node changes from the reference voltage to the display data voltage; a sensing circuit configured to write an initialization voltage from the sensing line to the second node in the threshold voltage sensing process; a light emitting element.
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公开(公告)号：US20240188350A1
公开(公告)日：2024-06-06
申请号：US17790193
申请日：2021-05-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying HAN , Yicheng LIN , Guang YAN , Pan XU , Mingi CHU , Dongfang YANG
IPC: H10K59/13 , H10K59/131 , H10K59/80
CPC classification number: H10K59/13 , H10K59/131 , H10K59/80516
Abstract: A light-emitting substrate includes a base substrate, an auxiliary electrode line, at least one light-emitting device, and at least one light-detecting device(s). The auxiliary electrode line is disposed on the base substrate. The at least one light-emitting device is disposed above the base substrate, and a light-emitting device includes a first electrode, a light-emitting functional layer and a second electrode that are sequentially stacked in a direction moving away from the base substrate. The at least one light-detecting device is disposed above the base substrate, and a light-detecting device includes a third electrode and a fourth electrode. The auxiliary electrode line is coupled to the fourth electrode and the second electrode.
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公开(公告)号：US20240188344A1
公开(公告)日：2024-06-06
申请号：US17789248
申请日：2021-05-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying HAN , Yicheng LIN , Guang YAN , Pan XU , Dongfang YANG , Xing ZHANG , Zhan GAO , Guoying WANG , Dacheng ZHANG
IPC: H10K59/123 , H10K59/60 , H10K59/80 , H10K102/10
CPC classification number: H10K59/123 , H10K59/60 , H10K59/80522 , H10K59/80524 , H10K2102/103
Abstract: A light-emitting substrate includes a base substrate, light-emitting device(s) and a first insulating layer. A light-emitting device includes a first electrode, a light-emitting functional layer and a second electrode that are sequentially stacked. The first electrode includes a second sub-electrode and a first sub-electrode. The second sub-electrode includes a first portion covered by the first sub-electrode and a second portion except for the first portion. The first insulating layer has a first opening and a second opening. A portion of a side face of the first sub-electrode located on the second sub-electrode is covered by the first insulating layer. A portion of the light-emitting functional layer located in the first opening is in contact with the first sub-electrode, and a portion of the light-emitting functional layer located in the second opening is in contact with the second portion in the second sub-electrode.
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