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.

公开(公告)号：US12002410B2

公开(公告)日：2024-06-04

申请号：US17642025

申请日：2021-04-08

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hao Chen ,  Zhenyu Zhang ,  Jiao Zhao ,  Li Xiao ,  Dongni Liu ,  Haoliang Zheng ,  Liang Chen ,  Minghua Xuan ,  Ming Yang ,  Xinhong Lu ,  Qi Qi

IPC: G09G3/32 ,  G01R31/52 ,  G01R31/54 ,  G09G3/00 ,  H01L25/075 ,  H01L27/12 ,  H01L33/62 ,  G09F9/33

CPC classification number: G09G3/32 ,  G01R31/52 ,  G01R31/54 ,  G09G3/006 ,  G09G3/035 ,  H01L25/0753 ,  H01L27/1244 ,  H01L33/62 ,  G09F9/33 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2330/021

Abstract: An array substrate, a detection method for the array substrate, and a tiled display panel. In the array substrate, each of pixels (1) comprises sub-pixels (01) of at least three colors and a pixel driving chip (02) for driving each sub-pixel (01) to emit light; each sub-pixel (01) comprises at least one inorganic light-emitting diode; a display area (A1) further comprises: a positive signal line (Hm) connected to a positive electrode of each inorganic light-emitting diode, and a data signal line (Dm), a scanning line (Sn), and a reference signal line (Vm) connected to each pixel driving chip (02); each pixel driving chip (02) is used for writing signals of the data signal line (Dm) into the sub-pixels (01) of different colors under the control of the corresponding scanning line (Sn) in a time division manner.

公开(公告)号：US11996035B2

公开(公告)日：2024-05-28

申请号：US17639790

申请日：2021-03-11

Applicant: BOE Technology Group Co., Ltd.

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

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2310/061

Abstract: Provided is a pixel circuit. The pixel circuit includes a reset circuit, a data write circuit, a light-emission control circuit, and a drive circuit; wherein the reset circuit is configured to transmit a reset power signal supplied by the reset power terminal to the first node in response to a reset control signal; the data write circuit is configured to transmit a data signal supplied by the data signal terminal to the first node in response to a gate drive signal; the light-emission control circuit is configured to control conduction/non-conduction between the cathode of the light-emitting element and the second node, and control conduction/non-conduction between the third node and the pull-down power terminal, in response to a light-emission control signal; and the drive circuit is configured to control conduction/non-conduction between the second node and the third node in response to a potential of the first node.

公开(公告)号：US11854493B2

公开(公告)日：2023-12-26

申请号：US17052526

申请日：2019-11-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Jiao Zhao ,  Li Xiao ,  Minghua Xuan ,  Haoliang Zheng ,  Dongni Liu ,  Jing Liu ,  Qi Qi

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2330/06 ,  G09G2330/08

Abstract: The present disclosure provides a display substrate and a display device, and belongs to the field of display technology. The display substrate of the present disclosure includes: a base substrate; and a plurality of pixel units arranged in an array, a plurality of signal lines and signal supply modules on the base substrate; wherein the signal supply module includes: a signal supply circuit and a redundant signal supply circuit; each of the signal supply modules is electrically coupled to at least one of the plurality of pixel units through at least one of the plurality of signal lines.

公开(公告)号：US11721287B2

公开(公告)日：2023-08-08

申请号：US17789661

申请日：2021-08-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3258 ,  G06F3/042 ,  H04N25/00 ,  H04N25/40 ,  H04N25/47

CPC classification number: G09G3/3258 ,  G06F3/042 ,  G06F3/0421 ,  G09G2300/0439 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2360/14 ,  G09G2360/148 ,  H04N25/00 ,  H04N25/40 ,  H04N25/47

Abstract: Provided are a photoelectric detection circuit and a driving method thereof, a display apparatus and a manufacturing method thereof. The photoelectric detection circuit includes: a first reset sub-circuit, a second reset sub-circuit, a first storage sub-circuit, a data read sub-circuit and a photosensitive device. A first terminal of the data read sub-circuit, a first terminal of the first storage sub-circuit, a first electrode of the photosensitive device and a first terminal of the first reset sub-circuit are connected to a first node. A second electrode of the photosensitive device is connected to a common voltage line. The data read sub-circuit is configured to transmit a voltage of the first node to a data read line in response to a signal of a scan line. The first reset sub-circuit is configured to reset the voltage of the first node.

公开(公告)号：US11605348B2

公开(公告)日：2023-03-14

申请号：US17433402

申请日：2020-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Minghua Xuan ,  Dongni Liu ,  Haoliang Zheng ,  Li Xiao ,  Xue Dong

IPC: G09G3/20 ,  G09G3/3258

Abstract: A pixel circuit includes an input circuit and a time control circuit. The input circuit includes a driving transistor, and the input circuit is configured to write a data signal into a gate of the driving transistor in response to a first gate signal, so that the driving transistor outputs a driving signal for driving an element to be driven to emit light according to a gate voltage and a source voltage thereof. The time control circuit is coupled to the input circuit and the element to be driven, and is configured to control the input circuit to transmit the driving signal to the element to be driven for a first duration, and control the input circuit to transmit the driving signal to the element to be driven for a second duration. The second duration is shorter than the first duration, and includes a plurality of phases spaced apart.

公开(公告)号：US11568797B2

公开(公告)日：2023-01-31

申请号：US17408967

申请日：2021-08-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A light-emitting driving circuit includes a driving sub-circuit, a control sub-circuit, a data writing sub-circuit and a compensation sub-circuit. The control sub-circuit is configured to initialize voltages of a first node and a control terminal of the driving sub-circuit in response to a second scan signal. The data writing sub-circuit is configured to write a data signal into a first terminal of the driving sub-circuit in response to a first scan signal. The driving sub-circuit is configured to output, from a second terminal of the driving sub-circuit, the data signal and a compensation signal. The compensation sub-circuit is configured to transmit the data signal and the compensation signal to the first node in response to the first scan signal, and adjust the voltage of the control terminal according to the data signal, the compensation signal, the initialized voltages of the first node and the control terminal.

公开(公告)号：US11538404B2

公开(公告)日：2022-12-27

申请号：US17476798

申请日：2021-09-16

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Li Xiao ,  Minghua Xuan

IPC: G09G3/32

Abstract: The present disclosure provides a pixel driving structure and a display panel. The pixel driving structure includes a pulse width modulation driving circuit, a pulse amplitude modulation driving circuit, and a buffer circuit. The pulse width modulation driving circuit is configured to control a pulse width of a driving current supplied to the light emitting device to be driven according to a pulse width modulation data voltage; the pulse amplitude modulation driving circuit is configured to control an amplitude of the driving current supplied to the light emitting device to be driven according to a pulse amplitude modulation data voltage; and the buffer circuit is electrically coupled between the pulse width modulation driving circuit and the pulse amplitude modulation driving circuit and is configured to adjust a rate at which the pulse width modulation driving circuit applies a pulse width modulation voltage to the pulse amplitude modulation driving circuit.

公开(公告)号：US11373584B2

公开(公告)日：2022-06-28

申请号：US16976858

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32 ,  G11C19/28 ,  H01L25/075 ,  H01L27/02 ,  H01L27/12 ,  H01L33/62

Abstract: An array substrate has a display area, and the array substrate includes at least one pixel group and at least one pixel circuit group. The at least one pixel group is disposed in the display area, and each pixel group includes a plurality of pixels arranged in an array. Each pixel circuit group is disposed between two adjacent rows of pixels or two adjacent columns of pixels in a corresponding pixel group.