Title:
SHIFT REGISTER UNIT, GATE DRIVING CIRCUIT AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/087298
Kind Code:
A1
Abstract:
A shift register unit, a gate driving circuit and a display apparatus, which belong to the technical field of display, and can solve the problem of a leakage current being easily generated due to the fact that threshold voltages of thin-film transistors in existing shift register units are unstable. The shift register unit comprises: an input sub-circuit (101), an output sub-circuit (102), a pull-down control sub-circuit (103), a pull-down sub-circuit (104), a first noise reduction sub-circuit (105), a first auxiliary control sub-circuit (108) and a second auxiliary control sub-circuit (109), wherein the first auxiliary control sub-circuit (108) is configured to write a third reference level signal into a pull-down control node (PC) when a pull-down node (PD) is a first reference level signal, and control the pull-down sub-circuit (104) to be turned on, so as to control the first noise reduction sub-circuit (105) to be turned off; and the second auxiliary control sub-circuit (109) is configured to write the first reference level signal into the pull-down control node (PC) when the pull-down node (PD) is a first power source voltage signal, and control the pull-down sub-circuit (104) to be turned off, so as to control the first noise reduction sub-circuit (105) to perform noise reduction on a pull-up node (PU) by means of a second reference level signal.
Inventors:
REN JINYU (CN)
LIU HAISHENG (CN)
PENG KUANJUN (CN)
ZHANG FANGZHEN (CN)
WANG JINQIAN (CN)
MA GUOJING (CN)
WANG DAN (CN)
WANG WEI (CN)
FENG SHA (CN)
LIU HAISHENG (CN)
PENG KUANJUN (CN)
ZHANG FANGZHEN (CN)
WANG JINQIAN (CN)
MA GUOJING (CN)
WANG DAN (CN)
WANG WEI (CN)
FENG SHA (CN)
Application Number:
PCT/CN2021/132026
Publication Date:
May 25, 2023
Filing Date:
November 22, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE DISPLAY TECH CO (CN)
BEIJING BOE DISPLAY TECH CO (CN)
International Classes:
G09G3/20; G11C19/28
Foreign References:
| CN108648714A | 2018-10-12 | |||
| CN111243489A | 2020-06-05 | |||
| CN113327537A | 2021-08-31 | |||
| CN108172163A | 2018-06-15 | |||
| CN109427277A | 2019-03-05 | |||
| US20150213746A1 | 2015-07-30 | |||
| KR20130013766A | 2013-02-06 |
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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