公开(公告)号：US11727841B2

公开(公告)日：2023-08-15

申请号：US17475529

申请日：2021-09-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua Xuan ,  Haoliang Zheng ,  Liang Chen ,  Qi Qi ,  Jing Liu ,  Dongni Liu

IPC: G09G3/20 ,  G09G3/32 ,  H01L23/522 ,  H01L27/12 ,  H01L23/552

CPC classification number: G09G3/20 ,  G09G3/32 ,  H01L23/5226 ,  H01L23/552 ,  H01L27/124 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0267

Abstract: The present disclosure provides a driving backplane, a display panel and a display device. The driving backplane comprises: a base substrate having a plurality of first conductive vias; a pixel circuit layer disposed on the base substrate and comprising a plurality of pixel circuits and a plurality of signal lines; a conductive portion, at least part of which is disposed in one first conductive via; a conductive pattern layer disposed on the base substrate and comprising a plurality of first conductive patterns; and a shielding layer disposed between the pixel circuit layer and the conductive pattern layer and having a plurality of hollow areas; wherein each of the plurality of signal lines is coupled to one first conductive pattern through at least one of the conductive portions.

公开(公告)号：US11587501B2

公开(公告)日：2023-02-21

申请号：US17509899

申请日：2021-10-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Dongni Liu ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Jiao Zhao ,  Jin Yang ,  Minghua Xuan

IPC: G09G3/32

Abstract: The present disclosure provides a display apparatus, a pixel circuit and a method of driving a pixel circuit. In one or more embodiments, the pixel circuit includes a driving transistor, a data signal module and a bias signal module. A first electrode of the driving transistor is connected with a first power signal terminal, a second electrode of the driving transistor is connected with a first terminal of a light emitting element, and the driving transistor includes a first control electrode and a second control electrode. The data signal module is connected with the driving transistor, a data writing signal terminal and a data signal terminal. The bias signal module is connected with the driving transistor, a bias writing signal terminal and a bias signal terminal, and is configured to adjust a threshold voltage of the driving transistor under control of the bias writing signal terminal and the bias signal terminal.

公开(公告)号：US11538410B2

公开(公告)日：2022-12-27

申请号：US17407147

申请日：2021-08-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Li Xiao ,  Haoliang Zheng ,  Liang Chen ,  Jiao Zhao ,  Seungwoo Han ,  Hao Chen

IPC: G09G3/3233 ,  G09G3/3291

Abstract: A pixel circuit, a driving method thereof and a light emitting device, and relates to the technical field of display. The pixel circuit comprises driving sub-circuit comprising a control terminal, first terminal and a second terminal, driving sub-circuit being configured to control driving signal flowing through the first terminal and second terminal according to signal of control terminal; first capacitor comprising first pole and second pole coupled to control terminal of driving sub-circuit; first data writing sub-circuit configured to write first initialization signal to first pole of first capacitor in response to first scanning signal, write first data signal into driving sub-circuit in response to first scanning signal, so that signal of control signal of driving sub-circuit changes with first data signal; second data writing sub-circuit configured to write second data signal to first pole of first capacitor in response to second scanning signal.

公开(公告)号：US11482586B2

公开(公告)日：2022-10-25

申请号：US16769214

申请日：2019-07-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Dongni Liu ,  Minghua Xuan ,  Liang Chen

IPC: H01L29/08 ,  H01L27/32

Abstract: An array substrate is provided. The array substrate includes a data line; a first voltage supply line; a second voltage supply line; and a pixel driving circuit. The pixel driving circuit includes one or more transistors in a first group and one or more transistors in a second group. A source electrode and a drain electrode of at least one transistor in the first group, the data line, the first voltage supply line, and the second voltage supply line are in a same layer. A source electrode and a drain electrode of at least one transistor in the second group are in a layer different from the first voltage supply line and the second voltage supply line.

公开(公告)号：US11226520B2

公开(公告)日：2022-01-18

申请号：US16614343

申请日：2019-05-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Detao Zhao ,  Li Xiao ,  Lei Wang ,  Dongni Liu ,  Liang Chen ,  Jifeng Tan ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G02F1/1343 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/139

Abstract: A display substrate includes: a plurality of sub-pixel regions at a first base substrate, each of the plurality of sub-pixel regions including a light-blocking region and aperture regions located at opposing sides of the light-blocking region; and a first transparent electrode and a second transparent electrode within each of the plurality of sub-pixel regions, configured to drive a liquid crystal layer; wherein the first transparent electrode includes a first electrode unit located inside the light-blocking region and including a plurality of first sub-electrodes, wherein each of the plurality of first sub-electrodes are separated from two adjacent first sub-electrodes by a separation distance; and wherein the separation distance between two adjacent first sub-electrodes nearest to a center line of the light-blocking region is smaller than the separation distance between two adjacent first sub-electrodes nearest to an edge of the light-blocking region.

公开(公告)号：US11211007B2

公开(公告)日：2021-12-28

申请号：US16612321

申请日：2019-04-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Liang Chen ,  Lei Wang ,  Li Xiao ,  Dongni Liu ,  Minghua Xuan ,  Xiaochuan Chen ,  Shengji Yang ,  Detao Zhao

IPC: G09G3/3258

Abstract: A pixel structure and a method of driving the same, a display panel and a display device. The pixel structure includes: at least two pixel circuits and a conduction control circuit connected to the at least two pixel circuits. The conduction control circuit is configured to connect the at least two pixel circuits in parallel in response to a first control signal and to connect the at least two pixel circuits in series in response to a second control signal.

公开(公告)号：US11100846B2

公开(公告)日：2021-08-24

申请号：US16638427

申请日：2018-11-22

Applicant: BOE Technology Group Co., Ltd.

Inventor： Minghua Xuan ,  Li Xiao ,  Lei Wang ,  Xiaochuan Chen ,  Detao Zhao ,  Dongni Liu ,  Liang Chen

IPC: G09G3/32

Abstract: The present application discloses display-driving circuit for multiple rows of pixels in a column of a display panel. The display-driving circuit includes a compensation sub-circuit comprising a driving transistor, a data-input transistor, a drive-control transistor, a reset transistor, and a capacitor. The compensation sub-circuit is configured to compensate a drift of a threshold voltage of the driving transistor to drive light emission of multiple light-emitting diodes associated with respective multiple rows of pixels in the column. The display-driving circuit further includes multiple first emission-control transistors coupled in parallel between a high-voltage supply and a source electrode of the driving transistor and multiple second emission-control transistors respectively coupled between a drain electrode of the driving transistor and respective anodes of the multiple light-emitting diodes, and respectively turned on in different ones of multiple portions of one cycle time for displaying one frame of image.

公开(公告)号：US12266747B2

公开(公告)日：2025-04-01

申请号：US17522282

申请日：2021-11-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiao Zhao ,  Haoliang Zheng ,  Li Xiao ,  Dongni Liu ,  Liang Chen ,  Hao Chen ,  Minghua Xuan

IPC: H01L33/62 ,  H01L33/00 ,  H01L33/38

Abstract: The present disclosure discloses a light-emitting substrate, a method for forming the light-emitting substrate and a display device. The light-emitting substrate includes: a base substrate; a first signal line located at one side of the base substrate; an insulation layer located at one side of the first signal line away from the base substrate; an electrode layer located at one side of the insulation layer away from the base substrate and including a first electrode terminal, a second electrode terminal and a second signal line, where the first electrode terminal is electrically connected to the first signal line via a first through hole penetrating the insulation layer; and at least one light-emitting element bound and connected to the first electrode terminal and the second electrode terminal.

公开(公告)号：US12266301B2

公开(公告)日：2025-04-01

申请号：US17772029

申请日：2021-06-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Li Xiao ,  Dongni Liu ,  Liang Chen ,  Hao Chen ,  Jiao Zhao ,  Minghua Xuan

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel circuit includes a first driving circuit, a first control circuit, a second driving circuit and a second control circuit. The first driving circuit is configured to write a first data signal into a first node in response to a scanning signal. The first control circuit is configured to transmit a first voltage signal to the first driving circuit, and transmit a first driving signal generated by the first driving circuit according to a voltage of the first node and the first voltage signal in response to an enable signal. The second driving circuit is configured to write a second data signal into a second node in response to the scanning signal. The second control circuit is configured to transmit a second driving signal generated by the second driving circuit according to a voltage of the second node and the first voltage signal in response to a control signal.

公开(公告)号：US12198989B2

公开(公告)日：2025-01-14

申请号：US17255079

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Li Xiao ,  Jiao Zhao ,  Minghua Xuan ,  Dongni Liu ,  Haoliang Zheng ,  Zhenyu Zhang ,  Liang Chen ,  Hao Chen ,  Jing Liu ,  Qi Qi

IPC: H01L21/66 ,  H01L25/16 ,  H01L27/12

Abstract: The present disclosure provides a method for detecting resistance of a side trace of a display substrate and the display substrate, and belongs to the field of display technology. In the method for detecting resistance of a side trace of a display substrate, the display substrate includes: a base substrate including a first surface and a second surface opposite to each other; a plurality of first pads at intervals on the first surface; and a plurality of second pads at intervals on the second surface; the first pad is electrically connected to a corresponding second pad through a side trace; the method includes forming at least one detection unit; wherein forming the detection unit includes: connecting two first pads through a connection part; and detecting two second pads in the detection unit, and obtaining resistance of the detection unit to obtain the resistance of the side trace.