Patents by Inventor Chunmin Xu

Chunmin Xu 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: 11810520
    Abstract: The present disclosure belongs to the field of display technologies, and provides a method and apparatus for compensating white point coordinates, and a computer device and a storage medium. The method includes: acquiring target brightness and target white point coordinates of a display module in a black frame insertion mode, wherein the display module includes a backlight; determining white point coordinates corresponding to the target brightness to be reached by the backlight in the black frame insertion mode and in an always-on mode, respectively; and compensating the target white point coordinates based on a difference value between the white point coordinates in the always-on mode and the white point coordinates in the black frame insertion mode.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: November 7, 2023
    Assignees: Hefei BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jingyong Li, Jun Hong, Lei Lv, Fei Xu, Yanbin Wang, Chunmin Xu, Wenhong Tian
  • Patent number: 11389592
    Abstract: A venting component includes a chamber, a vent hole and a floating block. The chamber includes a bottom chamber and an extended chamber communicating with the bottom chamber and extending upward therefrom. The bottom chamber is configured for liquid to flow in and out. The extended chamber includes a support portion. The vent hole is located at a side of the extended chamber away from the bottom chamber. The floating block is located in the extended chamber and forms a gap with the chamber wall of the extended chamber. The floating block is configured to be supported on the support portion and dimensioned to be able to block the vent hole.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: July 19, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Fei Xu, Lei Lv, Jun Hong, Chunmin Xu, Jie Gao
  • Patent number: 11233095
    Abstract: A display substrate, a manufacturing method of the display substrate and a display device are provided. The display substrate includes a plurality of sub-pixels arranged in an array in a display area. The display area includes a boundary extending in non-straight line. The plurality of sub-pixels arranged in the array include a plurality of first sub-pixels whose distances to the boundary extending in non-straight line are less than a preset threshold and a plurality of second sub-pixels other than the plurality of first sub-pixels, where at least one of the first sub-pixels is smaller in area than each of the second sub-pixels.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: January 25, 2022
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lei Lv, Bo Han, Fei Xu, Jie Gao, Jun Hong, Jiuyang Zhu, Mingwei Zhang, Jingyong Li, Chunmin Xu
  • Publication number: 20210402098
    Abstract: A venting component includes a chamber, a vent hole and a floating block. The chamber includes a bottom chamber and an extended chamber communicating with the bottom chamber and extending upward therefrom. The bottom chamber is configured for liquid to flow in and out. The extended chamber includes a support portion. The vent hole is located at a side of the extended chamber away from the bottom chamber. The floating block is located in the extended chamber and forms a gap with the chamber wall of the extended chamber. The floating block is configured to be supported on the support portion and dimensioned to be able to block the vent hole.
    Type: Application
    Filed: March 29, 2019
    Publication date: December 30, 2021
    Inventors: Fei XU, Lei LV, Jun HONG, Chunmin XU, Jie GAO
  • Publication number: 20210151519
    Abstract: A display substrate, a manufacturing method of the display substrate and a display device are provided. The display substrate includes a plurality of sub-pixels arranged in an array in a display area. The display area includes a boundary extending in non-straight line. The plurality of sub-pixels arranged in the array include a plurality of first sub-pixels whose distances to the boundary extending in non-straight line are less than a preset threshold and a plurality of second sub-pixels other than the plurality of first sub-pixels, where at least one of the first sub-pixels is smaller in area than each of the second sub-pixels.
    Type: Application
    Filed: April 17, 2019
    Publication date: May 20, 2021
    Inventors: Lei Lv, Bo Han, Fei Xu, Jie Gao, Jun Hong, Jiuyang Zhu, Mingwei Zhang, JIngyong Li, Chunmin Xu
  • Patent number: 10916166
    Abstract: The present disclosure provides a shift register unit, which comprises: a pull-down node control circuit, connected to a control node and a pull-down node, and configured to control a change in a potential of the pull-down node according to a potential of the control node, where the potential of the control node and the potential of the pull-down node are inversed in phase; and a first potential regulating circuit, connected to an upper-stage pull-up node and the control node, and configured to: transmit a potential of the upper-stage pull-up node to the control node when the potential of the upper-stage pull-up node is an effective operating potential; and disconnect a connection between the control node and the upper-stage pull-up node when the potential of the upper-stage pull-up node is not an effective operating potential.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: February 9, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Lei Lv, Jie Gao, Chunmin Xu
  • Publication number: 20190096308
    Abstract: The present disclosure provides a shift register unit, which comprises: a pull-down node control circuit, connected to a control node and a pull-down node, and configured to control a change in a potential of the pull-down node according to a potential of the control node, where the potential of the control node and the potential of the pull-down node are inversed in phase; and a first potential regulating circuit, connected to an upper-stage pull-up node and the control node, and configured to: transmit a potential of the upper-stage pull-up node to the control node when the potential of the upper-stage pull-up node is an effective operating potential; and disconnect a connection between the control node and the upper-stage pull-up node when the potential of the upper-stage pull-up node is not an effective operating potential.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 28, 2019
    Applicants: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Co., Ltd.
    Inventors: Lei Lv, Jie Gao, Chunmin Xu