Patents by Inventor Chijen Cheng

Chijen Cheng 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: 20190206318
    Abstract: A pixel control circuit and control method, a pixel unit, a display substrate and device are provided. The pixel control circuit includes: a pressure detecting sub-circuit and a switching sub-circuit; the pressure detecting sub-circuit is connected to a control node, and configured to control a potential of the control node to be a first potential when a pressure signal is detected; and the switching sub-circuit is connected to a first power source terminal, a light-emitting sub-circuit in the pixel unit and the control node respectively, and configured to provide a first power source signal from the first power source terminal for the light-emitting sub-circuit when the potential of the control node is the first potential. The pixel control circuit effectively raises the speed of fingerprint detection.
    Type: Application
    Filed: November 7, 2018
    Publication date: July 4, 2019
    Inventors: Xiaoliang Ding, Xue Dong, Haisheng Wang, Yingming Liu, Chijen Cheng, Yuzhen Guo, Pengpeng Wang, Xueyou Cao, Yanling Han, Ping Zhang