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:
Sep. 15, 2020

Filed:

Aug. 14, 2018
Applicant:

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

Inventors:

Min-Gyu Park, Seoul, KR;

Seong-Heon An, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01); G02F 1/1345 (2006.01); G09G 5/00 (2006.01); G02F 1/1362 (2006.01); G09G 3/00 (2006.01); G09G 3/36 (2006.01); G09G 3/3266 (2016.01);
U.S. Cl.
CPC ...
H02H 3/08 (2013.01); G02F 1/13454 (2013.01); G02F 1/136204 (2013.01); G09G 3/00 (2013.01); G09G 3/3266 (2013.01); G09G 3/3674 (2013.01); G09G 5/006 (2013.01); G09G 2310/0267 (2013.01); G09G 2310/0289 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0252 (2013.01);
Abstract

A display device includes: a timing controller generating and supplying first timing control signals, a level shifter generating and supplying gate control signals using the first timing control signals, a gate driver separately driving gate lines of a panel using the gate control signals, and an output circuit outputting the gate control signals, the level shifter including an overcurrent protection circuit (OPC) connected to the output circuit, the overcurrent protection circuit sensing overcurrent generation in the level shifter and overcurrent generation in a target circuit through the output circuit to output an overcurrent protection signal, wherein the level shifter: sets a time period to be a non-sensing time period, turns off a sensing operation of the OPC during the non-sensing time period, and turning on the sensing operation of the OPC during other periods, and wherein the OPC: turns on the sensing operation, and senses the overcurrent generation.


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