Patents by Inventor Fei OU

Fei OU 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: 11443661
    Abstract: A flexible display substrate and a method for manufacturing the same are provided. The method includes: forming a first insulating layer on a flexible base substrate; forming an etching barrier layer on a side of the first insulating layer away from the flexible base substrate; forming a second insulating layer covering the etching barrier layer on the side of the first insulating layer away from the flexible base substrate; and forming a first opening in the first insulating layer and a second opening in the second insulating layer through one patterning process, so that an orthographic projection of the first opening on the flexible base substrate falls within an orthographic projection of the second opening on the flexible base substrate, so as to form a step portion at a connection position where the first opening is connected to the second opening.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: September 13, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Liang Song, Yufei Ji, Pengyu Liao, Jiahao Xu, Hao Cheng, Wuyang Zhao, Long Jiang, Fei Ou, Jun Peng
  • Publication number: 20210272485
    Abstract: A flexible display substrate and a method for manufacturing the same are provided. The method includes: forming a first insulating layer on a flexible base substrate; forming an etching barrier layer on a side of the first insulating layer away from the flexible base substrate; forming a second insulating layer covering the etching barrier layer on the side of the first insulating layer away from the flexible base substrate; and forming a first opening in the first insulating layer and a second opening in the second insulating layer through one patterning process, so that an orthographic projection of the first opening on the flexible base substrate falls within an orthographic projection of the second opening on the flexible base substrate, so as to form a step portion at a connection position where the first opening is connected to the second opening.
    Type: Application
    Filed: April 10, 2020
    Publication date: September 2, 2021
    Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Liang Song, Yufei Ji, Pengyu Liao, Jiahao Xu, Hao Cheng, Wuyang Zhao, Long Jiang, Fei Ou, Jun Peng
  • Patent number: 9818774
    Abstract: A fabrication method of a pixel structure is provided. The fabrication method includes: forming a gate electrode, a gate insulating layer, an active layer, a pixel electrode layer and a source-drain electrode layer on a substrate, and etching the source-drain electrode layer by using a photoresist pattern to form a source electrode and a drain electrode; ashing the photoresist pattern, so as to align edges of the ashed photoresist pattern with edges of the source electrode and the drain electrode; etching a silicon oxide generated in ashing the photoresist pattern; and etching a semiconductor layer between the source electrode and the drain electrode by an etching process to form a channel. The fabrication method can remove indium-containing material remained on both sides of a source electrode and a drain electrode, and can resolve a problem that a width of a channel between the source electrode and the drain electrode is small.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: November 14, 2017
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaotao Jin, Zelin Chen, Fei Ou, Xiaofeng Yang
  • Publication number: 20160380010
    Abstract: A fabrication method of a pixel structure is provided. The fabrication method includes: forming a gate electrode, a gate insulating layer, an active layer, a pixel electrode layer and a source-drain electrode layer on a substrate, and etching the source-drain electrode layer by using a photoresist pattern to form a source electrode and a drain electrode; ashing the photoresist pattern, so as to align edges of the ashed photoresist pattern with edges of the source electrode and the drain electrode; etching a silicon oxide generated in ashing the photoresist pattern; and etching a semiconductor layer between the source electrode and the drain electrode by an etching process to form a channel. The fabrication method can remove indium-containing material remained on both sides of a source electrode and a drain electrode, and can resolve a problem that a width of a channel between the source electrode and the drain electrode is small.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 29, 2016
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Xiaotao JIN, Zelin CHEN, Fei OU, Xiaofeng YANG