Patents by Inventor Jinfei NIU

Jinfei NIU 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: 11842684
    Abstract: A display panel includes a substrate, a plurality of display units, a driving circuit and a gating circuit. Each display unit includes a plurality of pixel islands, and each pixel island includes a plurality of sub-pixels of a same color. The driving sub-circuit is configured to output driving signals. The gating circuit is coupled to the driving circuit, and is further coupled to sub-pixels of pixel islands in at least part of the plurality of display units. The gating circuit is configured to control a connection of the driving circuit to sub-pixels of pixel islands of at least one display unit in the at least part of the plurality of display units, so that the sub-pixels of the pixel islands of the at least one display unit are driven by at least one driving signal from the driving circuit to perform display.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: December 12, 2023
    Assignee: Boe Technology Group Co., LTD.
    Inventors: Lijun Yuan, Ning Cong, Can Wang, Jinfei Niu, Minghua Xuan, Can Zhang
  • Publication number: 20230335036
    Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 19, 2023
    Inventors: Lijun YUAN, Can ZHANG, Ning CONG, Wei LI, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN
  • Patent number: 11694597
    Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: July 4, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Wei Li, Can Wang, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Patent number: 11670213
    Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: June 6, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Can Wang, Jinfei Niu, Minghua Xuan
  • Publication number: 20230141443
    Abstract: The present disclosure provides a display panel, having a light emitting layer, a transparent spacing layer on the light emitting layer, and a wavelength converting layer on the transparent spacing layer, wherein according to the luminance change ratios of the wavelength converting units of adjacent pixels and the light path property of the transparent spacing layer, the cross color issue in wavelength-conversion type display panels is at least partially solved by controlling the intensity proportions of the light arriving at the wavelength converting units of adjacent sub-pixels within a certain range.
    Type: Application
    Filed: May 26, 2021
    Publication date: May 11, 2023
    Inventors: Wei Li, Yichi ZHANG, Can ZHANG, Can WANG, Lijun YUAN, Ning CONG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN
  • Publication number: 20230069670
    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.
    Type: Application
    Filed: June 25, 2021
    Publication date: March 2, 2023
    Inventors: Wei Li, Can Wang, Can Zhang, Li Xiao, Minghua Xuan, Lijun Yuan, Jinfei Niu, Jingjing Zhang, Guangcai Yuan
  • Patent number: 11538405
    Abstract: The pixel driving circuit includes a current control circuit and a gating circuit. The current control circuit is configured to transmit a driving current signal to an element to be driven. The gating circuit is configured to transmit a second voltage signal from a second voltage signal terminal to the element to be driven such that the element to be driven continuously emits light or transmit a third voltage signal from a third voltage signal terminal to the element to be driven such that the element to be driven intermittently emits light, under the control of a scan signal from a scan signal terminal, a reset signal from a reset signal terminal and a second data signal from a second data signal terminal.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 27, 2022
    Assignee: Beijing BOE Technology Development Co., Ltd.
    Inventors: Lijun Yuan, Can Zhang, Ning Cong, Wei Li, Can Wang, Jinfei Niu, Jingjing Zhang, Minghua Xuan
  • Publication number: 20220398965
    Abstract: A display panel includes: a plurality of light emitting signal lines. Under a control of switching signals provided from a plurality of switching signal lines and control signals provided from a plurality of control signal lines, working gray scale level signals corresponding to respective display gray scales are written to corresponding sub-pixels in an order from small to large in working gray scale sequentially by a plurality of times in one frame display time through the plurality of light emitting signal lines. Different working gray scale level signals indicate have different durations, and each of the working gray scale level signals is provided to the organic light emitting diode via the second transistor through a light emitting signal line, and a final display gray scale is a gray scale caused by superimposing different working gray scale level signals.
    Type: Application
    Filed: December 18, 2020
    Publication date: December 15, 2022
    Inventors: Lijun Yuan, Can ZHANG, Ning CONG, Can WANG, Jinfei NIU, Minghua XUAN
  • Publication number: 20220309991
    Abstract: The pixel driving circuit includes a current control sub-circuit configured to output a gray scale current signal to an element to be driven, and a gating sub-circuit. The gating sub-circuit is coupled to a scan signal terminal, a reset signal terminal, a gating data signal terminal and a pulse voltage signal terminal; the gating sub-circuit is configured to drive the element to be driven to continuously emit light under the control of a scan signal from the scan signal terminal and a gating data signal from the gating data signal terminal, and to drive the element to be driven to intermittently emit light under the control of a reset signal from the reset signal terminal, the gating data signal from the gating data signal terminal, and a pulse voltage signal from the pulse voltage signal terminal.
    Type: Application
    Filed: November 19, 2021
    Publication date: September 29, 2022
    Inventors: Lijun YUAN, Can ZHANG, Ning CONG, Wei LI, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN
  • Publication number: 20220301492
    Abstract: The pixel driving circuit includes a current control circuit and a gating circuit. The current control circuit is configured to transmit a driving current signal to an element to be driven. The gating circuit is configured to transmit a second voltage signal from a second voltage signal terminal to the element to be driven such that the element to be driven continuously emits light or transmit a third voltage signal from a third voltage signal terminal to the element to be driven such that the element to be driven intermittently emits light, under the control of a scan signal from a scan signal terminal, a reset signal from a reset signal terminal and a second data signal from a second data signal terminal.
    Type: Application
    Filed: November 19, 2021
    Publication date: September 22, 2022
    Inventors: Lijun YUAN, Can ZHANG, Ning CONG, Wei LI, Can WANG, Jinfei NIU, Jingjing ZHANG, Minghua XUAN