公开(公告)号：US20240363071A1

公开(公告)日：2024-10-31

申请号：US18029829

申请日：2022-04-07

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xuliang ZHAO ,  Jianchao ZHU ,  Lujiang HUANGFU

IPC: G09G3/3241

CPC classification number: G09G3/3241 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/06 ,  G09G2320/0209 ,  G09G2320/0693

Abstract: A pixel driving circuit is used for driving a light emitting element, in the pixel driving circuit, a first terminal of the driving sub-circuit being coupled to a power supply line; a compensation sub-circuit is respectively coupled to a scanning line, a control terminal of the driving sub-circuit, and a second terminal of the driving sub-circuit; a first terminal of the coupling sub-circuit being coupled to the control terminal of the driving sub-circuit; a first terminal of the storage sub-circuit being coupled to a second terminal of the coupling sub-circuit; a data writing-in sub-circuit is respectively coupled to a second terminal of the storage sub-circuit, a data line, and a reset line; a first reset sub-circuit is respectively coupled to the reset line, an initialization signal line, the control terminal of the driving sub-circuit, and the second terminal of the coupling sub-circuit.

公开(公告)号：US20240038167A1

公开(公告)日：2024-02-01

申请号：US18038690

申请日：2020-11-30

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lujiang HUANGFU ,  Li WANG ,  Jianchao ZHU ,  Libin LIU

IPC: G09G3/3233 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3291 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2330/021 ,  G09G2320/0247

Abstract: Provided are a pixel circuit and a driving method therefor, and a display apparatus. The pixel circuit includes a drive transistor, a reset circuit, a data writing circuit, a storage capacitor circuit, a threshold value compensation circuit, a conduction control circuit, a light-emitting control circuit, and a light-emitting device; the conduction control circuit is configured to: conduct the threshold value compensation circuit with the gate of the drive transistor, and conduct the reset circuit with the gate of the drive transistor at the reset stage, the threshold value detecting stage and the data writing stage; and cut off a conducting state of the threshold value compensation circuit with the gate of the drive transistor, and cut off a conducting state of the reset circuit with the gate of the drive transistor at the driving stage; where the conduction control circuit includes an oxide semiconductor thin film transistor.

公开(公告)号：US20230200129A1

公开(公告)日：2023-06-22

申请号：US17764993

申请日：2021-05-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can ZHENG ,  Li WANG ,  Long HAN ,  Jianchao ZHU ,  Libin LIU

IPC: H10K59/121 ,  H10K59/131 ,  H10K59/12 ,  H10K71/00 ,  H10K59/35

CPC classification number: H10K59/1213 ,  H10K59/1216 ,  H10K59/131 ,  H10K59/1201 ,  H10K71/00 ,  H10K59/353

Abstract: Disclosed are a display substrate and a preparation method thereof, and a display apparatus. The display substrate includes a substrate and a plurality of sub-pixels, at least one sub-pixel includes a pixel drive circuit and a light emitting device connected to the pixel drive circuit, the pixel drive circuit includes a plurality of transistors, wherein at least one transistor includes an active layer and two gate electrodes. The substrate is provided with a semiconductor layer and a plurality of conductive layers disposed on one side of the semiconductor layer away from the substrate, at least one conductive layer is provided with at least one electrode plate, and there is an overlapping region between an orthographic projection of the electrode plate on the substrate and an orthographic projection of the active layer between the two gate electrodes on the substrate.

公开(公告)号：US20220336567A1

公开(公告)日：2022-10-20

申请号：US17763659

申请日：2021-05-12

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xueyan TIAN ,  Chengjie QIN ,  Jianchao ZHU ,  Dengyun CHEN ,  Liangjian LI

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A display substrate includes a display region and a binding region located on one side of the display region, the display region includes a display structure layer, a protective layer provided on the display structure layer and a reflective layer provided on the protective layer, and the display structure layer includes a drive structure layer, a light-emitting structure layer and an encapsulating structure layer stacked on a base; the binding region includes a binding structure layer, a protective layer provided on the binding structure layer at one side of the binding region close to the display region, and a reflective layer provided on the protective layer, and the binding structure layer includes a lead wire structure layer provided on the base, a binding pad provided on the lead wire structure layer and an inorganic encapsulating layer.

公开(公告)号：US20220328604A1

公开(公告)日：2022-10-13

申请号：US17631372

申请日：2021-02-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian YANG ,  Jianchao ZHU ,  Bo WANG ,  Jingquan WANG

IPC: H01L27/32

Abstract: A stretchable display panel has a plurality of island regions and a plurality of bridge regions. The island regions are arranged in an array. Every two adjacent island regions are connected with a bridge region in the bridge regions therebetween. The display panel includes a plurality of sub-pixels and a plurality of signal line groups. At least one sub-pixel is provided in each island region. The signal line groups are located in a same conductive layer. Each signal line group extends along bridge regions to island regions that are connected to the bridge regions. The signal line group includes a plurality of signal lines arranged in parallel and at intervals. Each signal line is electrically connected to sub-pixels in the island regions.

公开(公告)号：US20170200418A1

公开(公告)日：2017-07-13

申请号：US15320613

申请日：2016-02-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Yi ZHANG ,  Yu FENG ,  Jianchao ZHU

IPC: G09G3/3266 ,  G11C19/28 ,  G09G3/325

CPC classification number: G09G3/3266 ,  G09G3/325 ,  G09G2300/0809 ,  G09G2310/0286 ,  G11C19/28 ,  G11C19/287

Abstract: There are provided a shift register, a gate driving circuit and a relevant display device, comprising a first node controlling module (1), a second node controlling module (2), a third node controlling module (3), a first outputting module (4) and a second outputting module (5). The first node controlling module (1) adjust a potential of a first node (A), the second node controlling module (2) adjust a potential of a second node (B), the third node controlling module (3) adjust a potential of a third node (C), the first outputting module (4) adjust a potential of a driving signal output terminal (Output), and the second outputting module (5) adjusts the potential of the driving signal output terminal (Output). Through mutual coordination of the five modules, the shift register could control a time length of a scanning signal outputted by the driving signal output terminal (Output) by only changing a time length of an input signal (Input), without changing clock signals (CK,CB) and changing the circuit and process, so that difficulty of the gate driving circuit and complexity of process could be reduced, thereby the cost is reduced.

公开(公告)号：US20250124879A1

公开(公告)日：2025-04-17

申请号：US18687988

申请日：2022-11-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang SHANG ,  Jianchao ZHU ,  Jiangnan LU ,  Yu FENG ,  Rui XU ,  Xing YAO

IPC: G09G3/3266

Abstract: Provided are a display panel, a display apparatus and a method for driving the display panel. The display panel includes: multiple gate lines; and multiple shift register units, a target shift register unit of the shift register units includes: a frame trigger selecting circuit and a gate driving circuit; the frame trigger selecting circuit is coupled to a frame trigger input terminal and frame starting signal terminals corresponding to N cascade groups, and outputs, in response to an nth turn-on signal of N turn-on signals corresponding to an nth cascade group, a starting signal input to the frame trigger input terminal to a frame starting signal terminal corresponding to the nth cascade group; 1≤n≤N, and n is an integer; the nth cascade group scans the gate lines coupled thereto line by line after the frame starting signal terminal corresponding thereto receives the starting signal.

公开(公告)号：US20240304266A1

公开(公告)日：2024-09-12

申请号：US18245030

申请日：2022-05-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan LU ,  Guangliang SHANG ,  Jianchao ZHU ,  Zhenzhen SHAN ,  Xing YAO

IPC: G11C19/28 ,  G09G3/3225

CPC classification number: G11C19/287 ,  G09G3/3225 ,  G09G2300/0426 ,  G09G2310/0286

Abstract: A shift register unit includes: an input circuit configured to provide an input signal to a first node in response to a first clock signal; a reset circuit configured to provide a first reference signal to a second node in response to a second clock signal; a first control circuit configured to provide the second clock signal to the second node in response to a first control signal; an output circuit configured to provide a third clock signal to a drive output terminal in response to a signal of the first node, and provide a second reference signal to the drive output terminal in response to a signal of the second node; where a duration of an active level of the first control signal is longer than a duration of an active level of a signal of the drive output terminal.

公开(公告)号：US20230329057A1

公开(公告)日：2023-10-12

申请号：US18333280

申请日：2023-06-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jianchao ZHU

IPC: H10K59/131

CPC classification number: H10K59/131

Abstract: The present disclosure provides a display panel and a display device. The display panel includes: a base substrate, on which a first metal layer and a second metal layer are stacked; and organic light emitting diode devices on a side, away from the base substrate, of the first metal layer. The first metal layer includes a power signal line. The power signal line is electrically connected with the second electrode layer in a peripheral area. Each organic light-emitting diode device includes a first electrode layer, a light emitting layer and a second electrode layer which are sequentially arranged on the base substrate. The second power signal line includes traces in a first direction and traces in a second direction, and orthographic projections of the traces in the first direction on the base substrate are intersected with orthographic projections of the traces in the second direction on the base substrate.

公开(公告)号：US20230154402A1

公开(公告)日：2023-05-18

申请号：US17626474

申请日：2021-01-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can ZHENG ,  Jianchao ZHU ,  Lujiang HUANGFU ,  Libin LIU ,  Shiming SHI

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2310/08 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2330/021

Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.