The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 10, 2023

Filed:

Dec. 16, 2021
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Seongho Yun, Paju-si, KR;

Dongmyoung Kim, Goyang-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3266 (2016.01); G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3266 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0214 (2013.01);
Abstract

A gate driver circuit can include a plurality of stage circuits, in which each of the plurality of stage circuits supplies a gate signal to gate lines arranged in a display panel, and includes an M node, a Qnode, a Qnode, a QB node, a line selector, a Qnode controller, a Qnode stabilizer, an inverter, a QB node stabilizer, a carry signal output circuit portion, and a gate signal output circuit portion, in which a first low-potential voltage level, a third low-potential voltage level, and a fourth low-potential voltage level for operating the gate driver circuit are set to different values, and the gate driver circuit can have a reduced size and better prevent leakage current while also providing more stable gate signals.


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