公开(公告)号：US11893934B2

公开(公告)日：2024-02-06

申请号：US17256504

申请日：2019-09-05

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Han Yue ,  Minghua Xuan ,  Can Zhang ,  Can Wang ,  Ming Yang ,  Ning Cong ,  Angran Zhang ,  Jiao Zhao ,  Xiaochuan Chen

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/029 ,  G09G2320/045 ,  G09G2330/08 ,  G09G2330/10 ,  G09G2330/12

Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.

公开(公告)号：US11694602B2

公开(公告)日：2023-07-04

申请号：US17040988

申请日：2020-04-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Ning Cong ,  Ming Yang ,  Han Yue ,  Can Wang ,  Can Zhang ,  Jiao Zhao ,  Minghua Xuan ,  Xiaochuan Chen

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/061

Abstract: The present disclosure discloses a pixel drive circuit and a display panel. The pixel drive circuit includes a Micro-LED, a cathode of which is grounded; a light-emitting control circuit connected with an anode of the Micro-LED and configured to control an emission time of the Micro-LED; a current control circuit connected with the light-emitting control circuit and configured to output a preset current to the light-emitting control circuit to control the Micro-LED to work under a set current density, and luminance efficiency of the Micro-LED under the set current density is greater than a set threshold value.

公开(公告)号：US20210134767A1

公开(公告)日：2021-05-06

申请号：US16860119

申请日：2020-04-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can Wang ,  Jiao Zhao ,  Han Yue ,  Can Zhang ,  Minghua Xuan

IPC: H01L25/075 ,  H01L27/12 ,  H01L33/62 ,  H01L33/60

Abstract: Disclosed are a display substrate and a manufacturing method therefor and a display device thereof. The display substrate includes: a drive backplate, and a plurality of micro LEDs and a retaining wall structure on the drive backplate; wherein a center of a light-emitting layer in the micro LED deviates from a center of the micro LED; the retaining wall structure is of an annular shape; the retaining wall structure corresponds to at least one micro LED in the display substrate; and a center of a surrounding region of the retaining wall structure in the drive backplate is located within a circumscribing region of a region where a light-emitting layer of the at least one micro LED is located.

公开(公告)号：US12213354B2

公开(公告)日：2025-01-28

申请号：US17585026

申请日：2022-01-26

Applicant: BOE Technology Group Co., Ltd.

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

IPC: H10K59/131 ,  G09F9/30 ,  H10K50/844 ,  H10K59/121 ,  H10K102/00

Abstract: A display panel is provided. The display panel includes a base substrate and a plurality of display units disposed on the base substrate. The display unit includes a signal line, a light-emitting device and a drive unit. The light-emitting device is disposed in a flexible display region of the base substrate, the drive unit is disposed in a pixel circuit region of the base substrate, and the signal line is connected with the light-emitting device and the drive unit.

公开(公告)号：US12198608B2

公开(公告)日：2025-01-14

申请号：US18005373

申请日：2021-11-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/32

Abstract: A display substrate includes a plurality of data lines extending in a first direction, and a plurality of sub-pixels. A sub-pixel includes a pixel driving circuit and a light-emitting device. The pixel driving circuit includes a current control circuit, and a duration control circuit electrically connected to the current control circuit and the light-emitting device. The current control circuit is configured to generate a driving signal to drive the light-emitting device to emit light; and the duration control circuit is configured to generate a duration control signal to control a duration of a connection between the current control circuit and the light-emitting device. The current control circuit and the duration control circuit are electrically connected to a same data line.

公开(公告)号：US12125428B2

公开(公告)日：2024-10-22

申请号：US17923690

申请日：2021-11-29

Applicant: BOE Technology Group Co., Ltd.

Inventor： Seungwoo Han ,  Haoliang Zheng ,  Dongni Liu ,  Li Xiao ,  Jiao Zhao ,  Xiaorong Cui ,  Minghua Xuan

IPC: G09G3/32 ,  G11C19/28

CPC classification number: G09G3/32 ,  G11C19/28 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A shift register includes: an input circuit configured to receive an input signal; a first control circuit configured to control, in response to a second clock signal and a voltage at a second node, a voltage at the first node; a second control circuit configured to control, in response to a first clock signal, the second clock signal, and the voltage at the first node, a voltage at the second node, and control, in response to the second clock signal and the voltage at the first node, a voltage at the fifth node; and an output circuit configured to transmit, in response to an active level at the first node, a second power signal to an output signal terminal, and transmit, in response to an active level at the fifth node, the first power signal to the output signal terminal. All transistors included in the shift register are N-type transistors.

公开(公告)号：US12112707B2

公开(公告)日：2024-10-08

申请号：US18308385

申请日：2023-04-27

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3258 ,  G09G3/3291

Abstract: A pixel circuit includes a driving circuit, a first control circuit and a second control circuit. The driving circuit is configured to receive a data signal in response to a scan signal, and generate, in response to a first enable signal, a driving signal according to a first voltage and the data signal. The first control circuit is configured to: receive a first input signal in response to a first control signal, and transmit a third input signal in response to the first input signal; and receive a second input signal in response to a second control signal, and transmit a second enable signal in response to the second input signal. The second control circuit is configured to transmit the driving signal to an element to be driven in response to one of the third input signal and the second enable signal.

公开(公告)号：US11972989B2

公开(公告)日：2024-04-30

申请号：US17253960

申请日：2019-11-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H01L21/66 ,  G01R31/54 ,  G01R31/58 ,  H01L23/00 ,  H01L25/16 ,  H01L27/12 ,  H10K59/131

CPC classification number: H01L22/32 ,  G01R31/54 ,  G01R31/58 ,  H01L22/22 ,  H01L24/02 ,  H01L27/124 ,  H10K59/131 ,  H01L25/167 ,  H01L2224/02321 ,  H01L2224/02375 ,  H01L2224/02379

Abstract: The present application provides a method for detecting a broken fanout wire of a display substrate, and a display substrate, and belongs to the field of display technology. In the method for detecting a broken fanout wire, the display substrate includes a base substrate having first and second surfaces opposite to each other, and a plurality of connection structures disposed at intervals on the first surface; and each connection structure includes first and second pads and a fanout wire electrically connecting the first pad to the second pad. The method for detecting a broken fanout wire includes: forming at least one detection unit, which includes: connecting at least two connection structures in series through a connecting part; and measuring a head and an end of the detection unit to obtain resistance of the detection unit, and determining whether there is a broken fanout wire in the detection unit.

公开(公告)号：US11955075B2

公开(公告)日：2024-04-09

申请号：US17615514

申请日：2021-01-15

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Dongni Liu ,  Qi Ql ,  Feng Qu ,  Minghua Xuan ,  Haoliang Zheng ,  Jiao Zhao

IPC: G09G3/3233 ,  H10K59/131

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2320/0233

Abstract: An array substrate has a display area and a non-display area including a first bonding region. The array substrate includes: a plurality of pixel columns disposed in the display area, each of the plurality of pixel columns including a plurality of light-emitting units that are arranged in a second direction, the second direction being perpendicular to a direction in which an edge of the display area proximate to the first bonding region extends; and at least three first power supply input terminals disposed in the first bonding region, each first power supply input terminal being connected to at least one pixel column of the plurality of pixel columns, so as to provide a first power supply signal to the at least one pixel column.

公开(公告)号：US11847966B2

公开(公告)日：2023-12-19

申请号：US17760733

申请日：2021-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3233 ,  G11C19/28

CPC classification number: G09G3/3233 ,  G11C19/28 ,  G09G2300/043 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2310/0286 ,  G09G2310/08

Abstract: A shift register (SR) includes a voltage control circuit (110) and a bias compensation circuit (120). The voltage control circuit (110) is configured to control a voltage at a first node (Output) to be a first voltage or a second voltage. The bias compensation circuit (120) is configured to: when the voltage at the first node (Output) is the first voltage, transmit a first signal received by a first signal terminal (VDD-A) to a first signal output terminal (EM1), and transmit a second signal received by a second signal terminal (VDD-B) to a second signal output terminal (EM2); and in response to the voltage at the first node (Output) being the second voltage, transmit a signal received by a first voltage terminal (LVGL1) to the first signal output terminal (EM1) and the second signal output terminal (EM2).