Patents by Inventor Ting-Ching CHU

Ting-Ching CHU 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).

  • Pixel circuit and display device having the same
    Patent number: 11289013
    Abstract: A pixel circuit including a compensation circuit, a writing circuit, a light emitting element, and a power supplying circuit is provided. The compensation circuit comprises a first node, and provides a driving current to the light emitting element according to a voltage of the first node and a system high voltage. The writing circuit provides a data voltage to the compensation circuit according to a first control signal so that the compensation circuit sets the voltage of the first node. The power supplying circuit selectively couples the compensation circuit to the light emitting element, and provides the system high voltage and a system low voltage to the compensation circuit, in which the system low voltage is configured to reset the voltage of the first node. The first control signal and the second control signal are opposite to the first emission signal and the second emission signal, respectively.
    Type: Grant
    Filed: October 20, 2020
    Date of Patent: March 29, 2022
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chih-Lung Lin, Po-Cheng Lai, Ting-Ching Chu, Po-Chun Lai, Mao-Hsun Cheng
  • PIXEL CIRCUIT AND DISPLAY DEVICE HAVING THE SAME
    Publication number: 20210125547
    Abstract: A pixel circuit including a compensation circuit, a writing circuit, a light emitting element, and a power supplying circuit is provided. The compensation circuit comprises a first node, and provides a driving current to the light emitting element according to a voltage of the first node and a system high voltage. The writing circuit provides a data voltage to the compensation circuit according to a first control signal so that the compensation circuit sets the voltage of the first node. The power supplying circuit selectively couples the compensation circuit to the light emitting element, and provides the system high voltage and a system low voltage to the compensation circuit, in which the system low voltage is configured to reset the voltage of the first node. The first control signal and the second control signal are opposite to the first emission signal and the second emission signal, respectively.
    Type: Application
    Filed: October 20, 2020
    Publication date: April 29, 2021
    Inventors: Chih-Lung LIN, Po-Cheng LAI, Ting-Ching CHU, Po-Chun LAI, Mao-Hsun CHENG