Patents by Inventor Maokun TIAN

Maokun TIAN 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: 11710443
    Abstract: A shift register, a gate drive circuit, and a display panel are provided. The shift register includes an input sub-circuit configured to pre-charge a pull-up node using an input signal; an output sub-circuit configured to output a clock signal through an signal output terminal; a pull-down control sub-circuit configured to control a potential of a pull-down node using a power supply voltage signal; a first pull-down sub-circuit configured to pull down a potential of the pull-down node using a first preset voltage signal; and a first control sub-circuit configured to control the potential of the pull-up node using a second preset voltage signal in response to the potential of the pull-down node; a potential of the first preset voltage signal is lower than a potential of a non-operating level signal of the first pull-down sub-circuit, but higher than a potential of the second preset voltage signal.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: July 25, 2023
    Assignees: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhiyong Ning, Zhonghao Huang, Xu Wu, Kunkun Gao, Chao Zhang, Can Wang, Maokun Tian
  • Patent number: 11675237
    Abstract: An array substrate includes a base substrate, a light-shielding pattern, a buffer pattern, an active layer, a gate insulating layer and a first passivation layer provided with a first via, a second via and a third via, and a source and a drain. An entire orthographic projection of the active layer on the base substrate coincides with an orthographic projection of at least part of the buffer pattern on the base substrate. The orthographic projection of the buffer pattern on the base substrate is within a border of an orthographic projection of the light-shielding pattern on the base substrate, and its area is less than an area of the orthographic projection of the light-shielding pattern on the base substrate. One of the source and the drain is coupled to the active layer through the first via, and another one is coupled to the active layer through the second via and the light-shielding pattern through the third via.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: June 13, 2023
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Maokun Tian, Zhonghao Huang, Xu Wu, Chengjun Qi, Jun Wang, Dan Liu
  • Patent number: 11506948
    Abstract: The disclosure relates to an array substrate. The array substrate may include a base substrate, an auxiliary electrode, a thin film transistor, a first insulating layer, a first electrode, a second insulating layer, and a second electrode sequentially arranged in a direction away from the base substrate. The auxiliary electrode is between the first insulating layer and the second insulating layer and insulated from the first electrode, the auxiliary electrode is coupled to a drain of the thin film transistor through a first via hole in the first insulating layer, and the second electrode is coupled to the auxiliary electrode through a second via hole in the second insulating layer.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: November 22, 2022
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Maokun Tian, Zhonghao Huang, Xu Wu, Yuanyao Dou
  • Publication number: 20220293035
    Abstract: A shift register, a gate drive circuit, and a display panel are provided. The shift register includes an input sub-circuit configured to pre-charge a pull-up node using an input signal; an output sub-circuit configured to output a clock signal through an signal output terminal; a pull-down control sub-circuit configured to control a potential of a pull-down node using a power supply voltage signal; a first pull-down sub-circuit configured to pull down a potential of the pull-down node using a first preset voltage signal; and a first control sub-circuit configured to control the potential of the pull-up node using a second preset voltage signal in response to the potential of the pull-down node; a potential of the first preset voltage signal is lower than a potential of a non-operating level signal of the first pull-down sub-circuit, but higher than a potential of the second preset voltage signal.
    Type: Application
    Filed: December 15, 2021
    Publication date: September 15, 2022
    Inventors: Zhiyong NING, Zhonghao HUANG, Xu WU, Kunkun GAO, Chao ZHANG, Can WANG, Maokun TIAN
  • Publication number: 20220057679
    Abstract: An array substrate includes a base substrate, a light-shielding pattern, a buffer pattern, an active layer, a gate insulating layer and a first passivation layer provided with a first via, a second via and a third via, and a source and a drain. An entire orthographic projection of the active layer on the base substrate coincides with an orthographic projection of at least part of the buffer pattern on the base substrate. The orthographic projection of the buffer pattern on the base substrate is within a border of an orthographic projection of the light-shielding pattern on the base substrate, and its area is less than an area of the orthographic projection of the light-shielding pattern on the base substrate. One of the source and the drain is coupled to the active layer through the first via, and another one is coupled to the active layer through the second via and the light-shielding pattern through the third via.
    Type: Application
    Filed: April 27, 2021
    Publication date: February 24, 2022
    Inventors: Maokun TIAN, Zhonghao HUANG, Xu WU, Chengjun QI, Jun WANG, Dan LIU
  • Publication number: 20210384305
    Abstract: A thin-film transistor, an array base plate and a display panel, wherein the thin-film transistor includes a semiconductor layer, a source metal layer and a drain metal layer, the semiconductor layer includes a first region, a first end of the first region extends in a first direction to form a second region, and a second end of the first region extends in the first direction to form a third region; and both of the source metal layer and the drain metal layer extend in the first direction, the source metal layer covers the first end and at least part of the second region, and the drain metal layer covers the second end and at least part of the third region.
    Type: Application
    Filed: February 23, 2021
    Publication date: December 9, 2021
    Applicants: Chongqing BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jun Wang, Zhonghao Huang, Maokun Tian, Yongliang Zhao
  • Publication number: 20210333667
    Abstract: The disclosure relates to an array substrate. The array substrate may include a base substrate, an auxiliary electrode, a thin film transistor, a first insulating layer, a first electrode, a second insulating layer, and a second electrode sequentially arranged in a direction away from the base substrate. The auxiliary electrode is between the first insulating layer and the second insulating layer and insulated from the first electrode, the auxiliary electrode is coupled to a drain of the thin film transistor through a first via hole in the first insulating layer, and the second electrode is coupled to the auxiliary electrode through a second via hole in the second insulating layer.
    Type: Application
    Filed: May 22, 2019
    Publication date: October 28, 2021
    Applicants: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Maokun Tian, Zhonghao Huang, Xu Wu, Yuanyao Dou
  • Patent number: 10620500
    Abstract: An array substrate is provided, including a plurality of pixel unit pairs arranged in an array and defined by mutually intersected gate lines and data lines. Two of the gate lines are arranged between the pixel unit pairs in adjacent rows, each pixel unit pair includes a first pixel unit and a second pixel unit, and a gate insulation layer, a first metal layer, a passivation layer and a pixel electrode layer are stacked on a base substrate and arranged between the first pixel unit and the second pixel unit. Orthographic projections of the pixel electrode layer and the first metal layer onto the base substrate partially overlap to form a storage capacitor, and the first metal layer is connected to a common electrode layer of each pixel unit pair in a lap joint manner.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: April 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Maokun Tian, Rui Wang, Zhonghao Huang, Wei Chen
  • Patent number: 10534233
    Abstract: The present disclosure provides an array substrate, a method for manufacturing the same, and a display device, which belongs to the field of display technology. The array substrate includes a metal electrode layer, a pad layer, a first insulating layer and a first transparent conductive layer, wherein: the pad layer includes a transparent conductive material, the metal electrode layer includes a conductive layer and protection layers formed on both surfaces of the conductive layer, and the pad layer is connected to the metal electrode layer; the first insulating layer is covered on the metal electrode layer and the pad layer, and the first transparent conductive layer is disposed on the first insulating layer; and a via hole is provided in the first insulating layer, and the first transparent conductive layer is connected to the pad layer through the via hole.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: January 14, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Maokun Tian, Zhonghao Huang, Xu Wu
  • Publication number: 20190101802
    Abstract: An array substrate is provided, including a plurality of pixel unit pairs arranged in an array and defined by mutually intersected gate lines and data lines. Two of the gate lines are arranged between the pixel unit pairs in adjacent rows, each pixel unit pair includes a first pixel unit and a second pixel unit, and a gate insulation layer, a first metal layer, a passivation layer and a pixel electrode layer are stacked on a base substrate and arranged between the first pixel unit and the second pixel unit. Orthographic projections of the pixel electrode layer and the first metal layer onto the base substrate partially overlap to form a storage capacitor, and the first metal layer is connected to a common electrode layer of each pixel unit pair in a lap joint manner.
    Type: Application
    Filed: April 27, 2018
    Publication date: April 4, 2019
    Applicants: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Maokun TIAN, Rui WANG, Zhonghao HUANG, Wei CHEN
  • Publication number: 20190086755
    Abstract: The present disclosure provides an array substrate, a method for manufacturing the same, and a display device, which belongs to the field of display technology. The array substrate includes a metal electrode layer, a pad layer, a first insulating layer and a first transparent conductive layer, wherein: the pad layer includes a transparent conductive material, the metal electrode layer includes a conductive layer and protection layers formed on both surfaces of the conductive layer, and the pad layer is connected to the metal electrode layer; the first insulating layer is covered on the metal electrode layer and the pad layer, and the first transparent conductive layer is disposed on the first insulating layer; and a via hole is provided in the first insulating layer, and the first transparent conductive layer is connected to the pad layer through the via hole.
    Type: Application
    Filed: March 30, 2018
    Publication date: March 21, 2019
    Inventors: Maokun TIAN, Zhonghao HUANG, Xu WU
  • Publication number: 20190043897
    Abstract: The present disclosure describes a method for fabricating an array substrate, an array substrate, and a display device. The method includes the following steps: forming a gate electrode on a substrate; forming a gate insulating layer on a side of the gate electrode distal to the substrate; and forming an active layer and a source-drain metal sequentially on a side of the gate insulating layer distal to the gate electrode; forming a protection layer for the source-drain metal on a side of the source-drain metal distal to the gate insulating layer; and etching portion of the source-drain metal corresponding to the channel region to form a source electrode and a drain electrode.
    Type: Application
    Filed: June 29, 2018
    Publication date: February 7, 2019
    Inventors: Maokun TIAN, Wei SHEN, Zhonghao HUANG, Zhaojun WANG, Dalong MAO