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).

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：US11568777B2

公开(公告)日：2023-01-31

申请号：US17327056

申请日：2021-05-21

Applicant: BOE Technology Group Co., Ltd.

Inventor： Haoliang Zheng ,  Seungwoo Han ,  Yi Ouyang ,  Minghua Xuan

IPC: G09G3/00 ,  G09G3/20 ,  G11C19/28

Abstract: The present disclosure provides a shift register unit and a driving method thereof, a gate driving circuit and a driving method thereof, and a display device. The shift register unit includes: a first shift register, a second shift register and a switch control circuit, signal input terminals of the first and second shift registers are coupled to a cascade signal input terminal through the switch control circuit, the switch control circuit is configured to allow a current between the signal input terminal of the first shift register and the cascade signal input terminal or not, and allow a current between the signal input terminal of the second shift register and the cascade signal input terminal or not; the first shift register and the second shift register are configured such that at least one of them operates upon receiving a cascade signal provided by the cascade signal input terminal.

公开(公告)号：US11360357B2

公开(公告)日：2022-06-14

申请号：US16639786

申请日：2019-01-03

Applicant: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Wenjun Xiao ,  Shijun Wang ,  Hehe Hu ,  Haoliang Zheng ,  Xi Chen ,  Xiaochuan Chen ,  Guangcai Yuan

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

Abstract: A display substrate and a manufacturing method thereof and a display device are disclosed. The manufacturing method of the display substrate includes: forming a first display electrode; and forming a thin film transistor, which includes forming a semiconductor layer; The first display electrode and the semiconductor layer are in one same layer, and a step of forming the first display electrode is performed before performing a step of forming the semiconductor layer.

公开(公告)号：US11328642B2

公开(公告)日：2022-05-10

申请号：US17044148

申请日：2020-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Lijun Yuan ,  Haoliang Zheng ,  Libin Liu ,  Xing Yao ,  Seungwoo Han

IPC: G09G3/20

Abstract: The present disclosure provides a gate driving unit, a gate driving method, a gate driving circuitry and a display device. The gate driving unit includes a reverse-phase gate driving signal output end, a normal-phase gate driving signal output end, an input circuitry, an output control circuitry, an input node control circuitry and an output circuitry. The input circuitry is configured to control an input end to be electrically connected to an input node under the control of a first clock signal. The output control circuitry is configured to control a potential at an output node under the control of a potential at the input node and a second clock signal. The input node control circuitry is configured to control the potential at the input node in accordance with the potential at the output node under the control of the second clock signal. The output circuitry is configured to output a reverse-phase gate driving signal and output a normal-phase gate driving signal in accordance with the potential at the output node.

公开(公告)号：US11244602B2

公开(公告)日：2022-02-08

申请号：US17086097

申请日：2020-10-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haoliang Zheng ,  Dongni Liu ,  Minghua Xuan ,  Zhenyu Zhang ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Guangliang Shang ,  Lijun Yuan ,  Xing Yao

IPC: G09G3/32

Abstract: A shift register includes an input sub-circuit, a control sub-circuit, an output sub-circuit and a reset sub-circuit. The input sub-circuit is configured to transmit an input signal from an input signal terminal to a pull-up node. The control sub-circuit is configured to transmit a clock signal from a clock signal terminal to the control node. The output sub-circuit is configured to transmit a second voltage signal from a second voltage signal terminal to a first output signal terminal, and to transmit a first voltage signal from a first voltage signal terminal to the first output signal terminal. The reset sub-circuit is configured to transmit the second voltage signal to the control node to reset the control node, and to transmit a third voltage signal from the third voltage signal terminal to the pull-up node to reset the pull-up node.

公开(公告)号：US11211027B2

公开(公告)日：2021-12-28

申请号：US16084027

申请日：2018-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Liugang Zhou ,  Haoliang Zheng ,  Yaoqiu Jing ,  Mingfu Han ,  Seungwoo Han

IPC: G09G3/36

Abstract: The present disclosure is related to a driving circuit of a display panel. The driving circuit may include a turn-on voltage adjusting circuit. The turn-on voltage adjusting circuit may include a control subcircuit and a switching and voltage division subcircuit. The switching and voltage division subcircuit may include a switching subcircuit and a basic voltage division subcircuit. The switching subcircuit may be configured to perform voltage division of a signal outputted by the output terminal of the control subcircuit to form a voltage division feedback signal of the corresponding resolution under control of the control signal and output the voltage division feedback signal to the voltage division feedback node.