Patents by Inventor Honghao ZHAO

Honghao ZHAO 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).

  • Display substrate, display panel and display apparatus
    Patent number: 11903272
    Abstract: A display substrate includes a plurality of data lines and a plurality of columns of pixel driving circuits. A column of pixel driving circuits is connected to a corresponding data line, and each pixel driving circuit includes a driving transistor and a first transistor. The driving transistor is a P-type transistor. The first transistor includes: a first active pattern having a first channel region, and a first doped region and a second doped region on two opposite sides of the first channel region; a first gate; and a first insulating block disposed on a side of the first active pattern away from the base and having a first via. The data line is connected to a portion of the first active pattern located in the first doped region through the first via. Sizes of all first vias in the column of pixel driving circuits gradually decrease in a first direction.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: February 13, 2024
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Honghao Zhao, Wenjun Liao, Yanting Lu, Taoran Zhang, Da Zhou, Jianbo Wang, Wenjin Huang
  • DISPLAY SUBSTRATE, DISPLAY PANEL AND DISPLAY APPARATUS
    Publication number: 20210320166
    Abstract: A display substrate includes a plurality of data lines and a plurality of columns of pixel driving circuits. A column of pixel driving circuits is connected to a corresponding data line, and each pixel driving circuit includes a driving transistor and a first transistor. The driving transistor is a P-type transistor. The first transistor includes: a first active pattern having a first channel region, and a first doped region and a second doped region on two opposite sides of the first channel region; a first gate; and a first insulating block disposed on a side of the first active pattern away from the base and having a first via. The data line is connected to a portion of the first active pattern located in the first doped region through the first via. Sizes of all first vias in the column of pixel driving circuits gradually decrease in a first direction.
    Type: Application
    Filed: June 10, 2020
    Publication date: October 14, 2021
    Inventors: Honghao ZHAO, Wenjun LIAO, Yanting LU, Taoran ZHANG, Da ZHOU, Jianbo WANG, Wenjin HUANG