Patents by Inventor Haigang QING

Haigang QING has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11948513
    Abstract: A shift register includes: an input circuit configured to transmit an input signal received at an input signal terminal to a first node under control of a first clock signal transmitted by a first clock signal terminal; an output circuit configured to transmit a second clock signal received at a second clock signal terminal to an output signal terminal under control of a voltage of the first node; a first control circuit configured to, according to one of the second clock signal and a first voltage signal transmitted by a first voltage signal terminal, control a voltage of a second node under control of the voltage of the first node and the second clock signal; and a holding circuit configured to transmit the first voltage signal to the output signal terminal under control of the voltage of the second node.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: April 2, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haigang Qing, Yunsheng Xiao, Quanyong Gu
  • Publication number: 20240107830
    Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate, at least one group of contact pads, a plurality of first light-emitting elements, a plurality of first pixel driving circuits, a plurality of connecting traces, a plurality of data lines and a plurality of leads. The display area includes a first display area and a second display area; the first light-emitting elements are located in the first display area; the first pixel driving circuits are located in the second display area; the leads are located in the first display area and the peripheral area, and connect the data lines and the at least one group of contact pads; orthographic projections of the first light-emitting elements on a substrate surface of the base substrate are at least partly overlapped with orthographic projections of the leads on the substrate surface of the base substrate.
    Type: Application
    Filed: April 30, 2021
    Publication date: March 28, 2024
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenbo CHEN, Linhong HAN, Youngyik KO, Qingqing YAN, Qiwei WANG, Hong YI, Yuanjie XU, Zhongliu YANG, Benlian WANG, Ziyang YU, Lili DU, Haigang QING, Weiyun HUANG
  • Patent number: 11943983
    Abstract: A display substrate, a method for manufacturing the display substrate, and a display device. In the display substrate, the first sub-pixel and the second sub-pixel each include: a power signal line pattern, at least part of the power signal line pattern extends along the second direction; and a power compensation pattern, at least part of the power compensation pattern extends along the first direction, the power signal line pattern and the power compensation pattern are both located on a side of the first data line pattern and the second data line pattern close to the substrate; the power compensation pattern is electrically connected to the power signal line pattern and a power signal line pattern in an adjacent sub-pixel along the first direction.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: March 26, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tinghua Shang, Haigang Qing, Yi Zhang, Tingliang Liu, Yu Wang, Yang Zhou
  • Publication number: 20240087536
    Abstract: A display substrate, and a display apparatus corresponding thereto and a manufacturing method therefor. The display substrate comprises: a display region and a non-display region, wherein the non-display region is provided with a gate driving circuit, which comprises a plurality of cascaded shift register units. Each shift register unit comprises: an input circuit (10), a first control circuit (11), a second control circuit (12) and an output circuit (15), wherein the first control circuit (11) is located between the input circuit (10) and the output circuit (15) in a first direction, and the first control circuit (11) is arranged in the first direction; and the second control circuit (12) is adjacent to the first control circuit (11) in a second direction; the first direction intersects with the second direction.
    Type: Application
    Filed: December 22, 2021
    Publication date: March 14, 2024
    Inventors: Haigang QING, Yunsheng XIAO, Quanyong GU
  • Patent number: 11929030
    Abstract: A display panel, a driving method, and a display device. The display panel includes: a base substrate, subpixels, driving lines, data lines, a gate driving circuit including clock signal lines and shift register units arranged in extension direction of clock signal lines. The clock signal lines is divided into clock signal line groups; the shift register units is divided into register unit groups; the shift register units in same register unit group are cascaded, adjacent two of shift register units in the extension direction are in different register unit groups; one register unit group corresponds to one clock signal line group; the gate of an input transistor is connected to a clock signal line in a corresponding clock signal line group, the second pole of input transistor is connected to the gate of an output transistor; the second pole of output transistor is connected to at least one driving line.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: March 12, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yuqian Pang, Yunsheng Xiao, Haigang Qing, Miao Wang, Tiaomei Zhang, Mengqi Wang
  • Publication number: 20240078976
    Abstract: Disclosed is a pixel circuit arranged in a display substrate, which comprises a first driving mode and a second driving mode. Content displayed in the display substrate comprises multiple display frames. In the first driving mode and the second driving mode, the display frames comprise refresh frames. A signal of a second scanning line is the same as that of a third scanning line. The time of which the signal of the second scanning line is an active level signal comprises a first refresh time period, a second refresh time period and a third refresh time period, which sequentially occur at intervals. During the second refresh time period, a signal of a first scanning line is an inactive level signal. The voltage of a signal at a reset voltage end is a positive voltage, and the voltage of a signal at a first initial voltage end is a negative voltage.
    Type: Application
    Filed: July 29, 2022
    Publication date: March 7, 2024
    Inventors: Tianyi CHENG, Haigang QING, Hongda CUI, Sifei AI, Guowei ZHAO, Yang YU, Li WANG, Baoyun WU
  • Patent number: 11922882
    Abstract: According to a pixel circuit and a driving method therefor, and a display apparatus provided by the embodiments of the present disclosure, a signal of a data signal end may be provided to a first end of a driving transistor through a data writing circuit under the control of a signal of a scanning signal end. A control end of the driving transistor is initialized through a second reset circuit according to a signal of an initializing signal end; and under the control of a signal of a light emitting control signal end, a first power end and the first end of the driving transistor are turned on through a light emitting control circuit, and a second end of the driving transistor and a light emitting device are turned on.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: March 5, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Haigang Qing
  • Patent number: 11908414
    Abstract: A display apparatus and driving method therefor. The apparatus comprises light emitting element, pixel circuit, scan signal line, data signal line, initial signal line, light emission control line, first power source line, and first reset line to third reset line. The pixel circuit comprises: first reset sub-circuit configured to provide a signal of the initial signal line to a first node; node control sub-circuit configured to provide a signal of the data signal line to a second node, compensate for the first node until a voltage thereof satisfies a threshold condition, provide a signal of the second node to the third node; light emission control sub-circuit configured to provide a signal of the first power source line to the second node and a signal of the third node to light emitting element; second reset sub-circuit configured to provide a signal of the initial signal line to light emitting element.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: February 20, 2024
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventor: Haigang Qing
  • Patent number: 11900881
    Abstract: The present disclosure provides a display substrate, a manufacturing method and a display device. At least one of the plurality of shift register units in the scan driving circuit includes an output circuit including an output transistor and an output reset transistor; a length of the active layer of the output transistor/the output reset transistor in the first direction is a first length/a second length, and a sum thereof is an output active length; a smaller one of minimum width of the active layer of the output transistor and the output reset transistor in a second direction is a first output active width, the first direction intersects the second direction; a ratio of the output active length to the first output active width is within a first predetermined ratio range greater than or equal to 3 and less than or equal to 11.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: February 13, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lu Bai, Haigang Qing, Pengfei Yu, Jie Dai, Xiaofeng Jiang
  • Patent number: 11893918
    Abstract: A shift register unit, a driving method, a driving circuit and a display device. The shift register unit includes a first node control circuit, a second node control circuit, an output node control circuit, an output circuit, a maintaining circuit, and a potential control circuit. The first node control circuit controls the potential of the first node, the second node control circuit controls the potential of the second node, the output node control circuit controls the connection between the output terminal and the first voltage terminal under the control of the potential of the output node, the potential control circuit control the potential of the control terminal of the maintaining circuit according to the second clock signal; the maintaining circuit controls the connection between the output terminal and the second voltage terminal under the control of a potential of the control terminal of the maintaining circuit.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: February 6, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Haigang Qing
  • Patent number: 11882723
    Abstract: Provided is a display substrate having a polygonal encapsulation region with a plurality of edges and a periphery region surrounding the encapsulation region. The display substrate includes a base substrate, and a partition structure within the periphery region on a side of the base substrate. The partition structure includes a plurality of isolation dams, arranged at intervals along a direction away from the encapsulation region, outside each edge of the encapsulation region. The plurality of edges include a first edge and a second edge, and a plurality of first isolation dams outside the first edge are not in connection with, and have more dams than, a plurality of second isolation dams outside the second edge.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: January 23, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yunsheng Xiao, Haigang Qing, Xiangdan Dong, Tingliang Liu
  • Publication number: 20240013721
    Abstract: A pixel circuit, a driving method for same, and a display apparatus are provided. The pixel circuit includes a driving sub-circuit, a writing sub-circuit, a compensation sub-circuit, a first reset sub-circuit, an emitting element. The driving sub-circuit provides a driving current for a third node under control of signals of first and second nodes. The writing sub-circuit writes a signal of the data signal terminal into the second node under control of a signal of a second scanning signal terminal. The first reset sub-circuit writes an initial voltage signal of a first initial signal terminal into the third node under control of a first scanning signal terminal and a first emitting control signal terminal. The compensation sub-circuit writes the initial voltage signal of the third node into the first node under control of a third scanning signal terminal, compensates the first node under control of the third scanning signal terminal.
    Type: Application
    Filed: September 21, 2023
    Publication date: January 11, 2024
    Inventors: Yao HUANG, Rui WANG, Benlian WANG, Haigang QING, Zhi WANG
  • Patent number: 11810506
    Abstract: A pixel circuit, driving method for same and display apparatus are provided. The pixel circuit includes a driving sub-circuit, writing sub-circuit, compensation sub-circuit, first reset sub-circuit, first and second emitting control sub-circuits, and emitting element. The compensation sub-circuit writes signal of third node into first node under control of third scanning signal terminal, and compensates first node under control of the third scanning signal terminal and first voltage terminal. The first reset sub-circuit writes signal of first initial signal terminal into third node under control of first scanning signal terminal and first emitting control signal terminal. The second emitting control sub-circuit provides signal of first voltage terminal for second node under control of second emitting control signal terminal.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 7, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Yao Huang, Rui Wang, Benlian Wang, Haigang Qing, Zhi Wang
  • Publication number: 20230316985
    Abstract: A display substrate includes a substrate and a gate driving circuit provided on the substrate; the gate driving circuit includes: a frame start signal line, a clock signal line, an inverted clock signal line, a first level signal line, a second level signal line, and a plurality of shift register units. The plurality of transistors at least include a first transistor, a second transistor, and a third transistor, active layers of the first, second and third transistors are formed by a continuous first semiconductor layer, the first semiconductor layer extends along a first direction; the first semiconductor layer includes at least three channel portions corresponding to the first transistor, the second transistor and the third transistor, and a conductive portion provided between adjacent channel portions, transistors corresponding to the adjacent channel portions are coupled to each other through a corresponding conductive portion.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 5, 2023
    Inventors: Haigang QING, Yunsheng XIAO
  • Patent number: 11776479
    Abstract: A display substrate and a display device are provided. A sub-pixel in the display substrate includes a light emitting element and a pixel circuit; the light emitting element includes a first electrode, a light emitting layer and a second electrode; the pixel circuit includes a driving transistor and a storage capacitor. The sub-pixel includes a first color sub-pixel pair which includes a first pixel block and a second pixel block. In a same first color sub-pixel pair, an overlapping situation, of orthographic projections of the second electrode of one first pixel block and a gate electrode of the driving transistor of the one first pixel block on the base substrate, is the same as an overlapping situation, of orthographic projections of the second electrode of one second pixel block and a gate electrode of the driving transistor of the one second pixel block on the base substrate.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: October 3, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tinghua Shang, Yang Zhou, Haigang Qing, Linhong Han, Ling Shi, Yao Huang
  • Publication number: 20230298500
    Abstract: A shift register unit, a driving method, a driving circuit and a display device. The shift register unit includes a first node control circuit, a second node control circuit, an output node control circuit, an output circuit, a maintaining circuit, and a potential control circuit. The first node control circuit controls the potential of the first node, the second node control circuit controls the potential of the second node, the output node control circuit controls the connection between the output terminal and the first voltage terminal under the control of the potential of the output node, the potential control circuit control the potential of the control terminal of the maintaining circuit according to the second clock signal; the maintaining circuit controls the connection between the output terminal and the second voltage terminal under the control of a potential of the control terminal of the maintaining circuit.
    Type: Application
    Filed: January 28, 2021
    Publication date: September 21, 2023
    Applicants: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Haigang QING
  • Publication number: 20230282169
    Abstract: A display substrate and a display device are provided. Sub-pixels in the display substrate include a first electrode, a light emitting layer and a second electrode which are sequentially stacked; each second electrode includes a main body electrode and a connecting electrode. The sub-pixels include first color sub-pixels and second color sub-pixels, the main body electrode of a same first color sub-pixel is a continuous electrode. The sub-pixels include sub-pixel pairs, each sub-pixel pair includes a first pixel block and a second pixel block, a shape of the second electrode of the second pixel block is different from that of the second electrode of the first pixel block.
    Type: Application
    Filed: May 11, 2023
    Publication date: September 7, 2023
    Inventors: Tinghua SHANG, Yang ZHOU, Haigang QING, Linhong HAN, Ling SHI, Yao HUANG
  • Publication number: 20230252942
    Abstract: A pixel circuit, driving method for same and display apparatus are provided. The pixel circuit includes a driving sub-circuit, writing sub-circuit, compensation sub-circuit, first reset sub-circuit, first and second emitting control sub-circuits, and emitting element. The compensation sub-circuit writes signal of third node into first node under control of third scanning signal terminal, and compensates first node under control of third scanning signal terminal and first voltage terminal. The first reset sub-circuit writes signal of first initial signal terminal into third node under control of first scanning signal terminal and first emitting control signal terminal. The second emitting control sub-circuit provides signal of first voltage terminal for second node under control of second emitting control signal terminal.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 10, 2023
    Inventors: Yao HUANG, Rui WANG, Benlian WANG, Haigang QING, Zhi WANG
  • Patent number: 11721267
    Abstract: A display substrate includes a substrate and a gate driving circuit provided on the substrate; the gate driving circuit includes: a frame start signal line, a clock signal line, an inverted clock signal line, a first level signal line, a second level signal line, and a plurality of shift register units. The plurality of transistors at least include a first transistor, a second transistor, and a third transistor, active layers of the first, second and third transistors are formed by a continuous first semiconductor layer, the first semiconductor layer extends along a first direction; the first semiconductor layer includes at least three channel portions corresponding to the first transistor, the second transistor and the third transistor, and a conductive portion provided between adjacent channel portions, transistors corresponding to the adjacent channel portions are coupled to each other through a corresponding conductive portion.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: August 8, 2023
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Haigang Qing, Yunsheng Xiao
  • Patent number: 11706958
    Abstract: A display panel is provided. The display panel includes a display part; and a fanout part. The display part includes a plurality of pixel driving circuits. The fanout part includes a bendable portion and a multiplexer. The display panel includes a plurality of first signal lines extending through the bendable portion, and connecting the plurality of pixel driving circuits to the multiplexer. A direct current supply line extending through the bendable portion and electrically connected to the plurality of pixel driving circuits. A portion of the direct current supply line is between the multiplexer and the bendable portion and crosses over the plurality of first signal lines.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: July 18, 2023
    Assignees: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Co., Ltd.
    Inventors: Haigang Qing, Tinghua Shang, Pengfei Yu