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Patent Searching and Data


Title:
GATE DRIVE CIRCUIT AND DRIVING METHOD THEREFOR, DISPLAY PANEL, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/233265
Kind Code:
A1
Abstract:
A gate drive circuit (10) and a driving method therefor, a display panel (100), and a display device (1000). The gate drive circuit (10) is used to drive a pixel circuit, and comprises a plurality of gate driver on array (GOA) units (11) that are cascaded. Each stage of GOA unit (11) drives one row of pixels, and each stage of GOA unit (11) comprises a startup sub-unit (1), an output sub-unit (2), and an output terminal (3) that are sequentially connected. In a first stage GOA unit (11), the startup sub-unit (1) is connected to a startup signal (STV), a first control signal (Con1), a second control signal (Con2), and a constant voltage low potential (VGL); and the output sub-unit (2) is connected to a first clock signal (CK) and a first power supply signal (VSS). In an nth stage GOA unit (11), the startup sub-unit (1) is connected to the startup signal (STV), the first control signal (Con1), the second control signal (Con2), and the output terminal (3) of an n-1th stage GOA unit (11), and the output sub-unit (2) is connected to the first power supply signal (VSS) and the output terminal (3) of an n+1th stage GOA unit (11), wherein n is an integer greater than one. When n is an even number, the output sub-unit (2) is further connected to a second clock signal (XCK), and when n is an odd number, the output sub-unit (2) is further connected to the first clock signal (CK). The gate drive circuit (10) starts or stops scanning a corresponding row of pixels of a pixel array according to the first control signal (Con1), the second control signal (Con2), and the startup signal (STV).

Inventors:
ZHAO JING (CN)
SU XU (CN)
ZHAO SHUANG (CN)
SUN JIGANG (CN)
Application Number:
PCT/CN2020/083659
Publication Date:
November 26, 2020
Filing Date:
April 08, 2020
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
ORDOS YUANSHENG OPTOELECTRONICS CO LTD (CN)
International Classes:
G09G3/20; G11C19/28
Foreign References:
US20100128019A12010-05-27
CN102855938A2013-01-02
CN110136626A2019-08-16
JP2000181414A2000-06-30
US20040130542A12004-07-08
Attorney, Agent or Firm:
TEE & HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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