公开(公告)号：US20240005829A1

公开(公告)日：2024-01-04

申请号：US17617608

申请日：2021-10-29

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Haiming CAO ,  Yanqing GUAN ,  Chao TIAN ,  Fei AI ,  Guanghui LIU ,  Zhifu LI

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A gate driving circuit and a display panel are disclosed. A pull-up control module and a pull-down module of each stage gate driving unit are connected to a first node. A thin film transistor in the pull-up control module and/or pull-down module that is connected to the first node is an oxide thin film transistor, such that a leakage current of the first node is reduced due to the advantage of the small off-state leakage current of the oxide thin film transistor. Therefore, the voltage level of the first node can remain stable during a pull-up stage and a touch suspension stage.

公开(公告)号：US20230131128A1

公开(公告)日：2023-04-27

申请号：US17281600

申请日：2021-03-15

Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Chao TIAN ,  Haiming CAO

IPC: G09G3/36

Abstract: In a GOA circuit provided by the present disclosure, a unidirectional feedback circuit is adopted between a first node and a second node of the GOA circuit of the present disclosure, which can reduce complexity of circuit design, make it easier to achieve linear design and in-plane integration, prevent point competition of the first node and the second node, and improve stability of the circuit.

公开(公告)号：US20210408082A1

公开(公告)日：2021-12-30

申请号：US16756350

申请日：2019-11-15

Applicant: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Juncheng XIAO ,  Chao TIAN ,  Yanqing GUAN ,  Haiming CAO

IPC: H01L27/12

Abstract: The present invention provides an array substrate, a manufacturing method thereof, and a display panel. Orthographic projections of channel layers of two types of thin film transistors in a design of a driving circuit on the array substrate at least partially overlap, that is, two thin film transistors are stacked on top of each other, thereby facilitating a narrow border design of the display panel. In addition, a channel layer of one of the thin film transistors is an amorphous oxide semiconductor layer, which can reduce node leakage in the driving circuit, which is conducive to improving circuit stability and reducing power consumption.