公开(公告)号：US12237316B2

公开(公告)日：2025-02-25

申请号：US17778540

申请日：2021-06-25

Applicant: BOE Technology Group Co., Ltd.

Inventor： Wei Li ,  Can Wang ,  Can Zhang ,  Li Xiao ,  Minghua Xuan ,  Lijun Yuan ,  Jinfei Niu ,  Jingjing Zhang ,  Guangcai Yuan

IPC: H01L23/00 ,  H01L25/16

Abstract: A display substrate, including: a base substrate including at least a side edge and a display area; a plurality of pixel units disposed in the display area, a second pixel unit is located on a side of a first pixel unit close to the side edge, edges of the second pixel unit include the side edge, a third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit; and a plurality of light emitting diode chips disposed on the base substrate a first light emitting diode chip is located in the first pixel unit, a part of a second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit.

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：US11901486B2

公开(公告)日：2024-02-13

申请号：US17256185

申请日：2020-04-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: H01L33/00 ,  H01L23/00 ,  H01L33/20

CPC classification number: H01L33/20 ,  H01L24/81 ,  H01L33/005 ,  H01L24/14 ,  H01L2933/0066

Abstract: Provided is a method for transferring a chip, including: disposing a target substrate in a sealed chamber; applying charges of different polarities to a first alignment bonding structure of the target substrate and a first chip bonding structure of the chip, and injecting an insulation fluid flowing in a first direction into the sealed chamber, so that the first chip bonding structure is aligned with the first alignment bonding structure; applying charges of different polarities to a second alignment bonding structure of the target substrate and a second chip bonding structure of the chip, and changing the flowing direction of the insulation fluid to a second direction, so that the second chip bonding structure is aligned with the second alignment bonding structure; and applying a bonding force to the chip, so that the chip bonding structures is bonded to the alignment bonding structures.

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).

公开(公告)号：US11798473B2

公开(公告)日：2023-10-24

申请号：US17309917

申请日：2020-09-28

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08

Abstract: The present disclosure provides a pixel driving circuit and a display panel. The pixel driving circuit includes: a data writing sub-circuit configured to transmit a data voltage signal to a first terminal of a driving sub-circuit in response to a first scanning signal; a threshold compensation sub-circuit configured to compensate for a threshold voltage of the driving sub-circuit in response to a second scanning signal; a storage sub-circuit configured to store the data voltage signal; the driving sub-circuit configured to provide a driving current for a light emitting device to be driven according to voltages of a first terminal and a control terminal of the driving sub-circuit; and a voltage maintaining sub-circuit configured to maintain the voltage of the control terminal of the driving sub-circuit when the voltage of the first terminal of the driving sub-circuit jumps.

公开(公告)号：US11450270B2

公开(公告)日：2022-09-20

申请号：US16484621

申请日：2019-01-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

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

IPC: G09G3/3233 ,  G09G3/3275

Abstract: A pixel circuit and a method of driving the same, and a display device. The pixel circuit includes a plurality of pixel compensation circuits, and each pixel compensation circuit can be connected to M light-emitting units located in the same column. Each light-emitting control signal terminal of the M light-emitting control signal terminals included in each light-emitting control signal terminal group may be connected to a pixel compensation circuit group (i.e., K rows of pixels compensation circuits).