Patents by Inventor Xiangwen MA

Xiangwen MA 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).

  • Publication number: 20240135884
    Abstract: A display panel including a first pulse width modulation period and a second pulse width modulation period, in the first pulse width modulation period, a duty cycle of a light-emitting control signal in a light-emitting stage being a first duty cycle, in the second pulse width modulation period, the duty cycle of the light-emitting control signal in the light-emitting stage being a second duty cycle, the first duty cycle being greater than the second duty cycle, in the first pulse width modulation period, a time interval between the start time of the first reset stage and the start time of the data writing stage being t1, in the second pulse width modulation period, the time interval between the start time of the first reset stage and the start time of the data writing stage being t1, t1<t2.
    Type: Application
    Filed: December 28, 2022
    Publication date: April 25, 2024
    Inventor: Xiangwen MA
  • Patent number: 11600225
    Abstract: A display panel and a driving method are provided. The pixel driver circuit includes a drive transistor, at least two data write modules, and a light emission control module. The at least two data write modules are configured to provide data signals for the drive transistor in a time-sharing manner, and the light emission control module is connected in series respectively with the drive transistor and the light-emitting element and is configured to control whether a drive current flows through the light-emitting element.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: March 7, 2023
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventor: Xiangwen Ma
  • Publication number: 20210201786
    Abstract: A display panel and a driving method are provided. The pixel driver circuit includes a drive transistor, at least two data write modules, and a light emission control module. The at least two data write modules are configured to provide data signals for the drive transistor in a time-sharing manner, and the light emission control module is connected in series respectively with the drive transistor and the light-emitting element and is configured to control whether a drive current flows through the light-emitting element.
    Type: Application
    Filed: March 16, 2021
    Publication date: July 1, 2021
    Applicant: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventor: Xiangwen MA