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:
Aug. 10, 2021

Filed:

Jul. 07, 2020
Applicant:

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

Inventors:

Donggun Lee, Paju-si, KR;

Kyujin Kim, Paju-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3291 (2016.01); G09G 3/3266 (2016.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3291 (2013.01); G09G 3/3233 (2013.01); G09G 3/3266 (2013.01); G09G 2310/0291 (2013.01); G09G 2320/0673 (2013.01); G09G 2330/021 (2013.01);
Abstract

A display device is proposed, the display device including a display panel having a plurality of pixels; a data driving circuit converting pixel data to a data voltage based on a gamma compensation voltage to supply the same to the plurality of pixels through a plurality of data lines; a gate driving circuit supplying a scan signal through a gate line connected to pixels of each horizontal line of the display panel; a power supply unit supplying a pixel driving voltage to the plurality of pixels through a power line; and a gamma reference voltage adjusting unit adjusting a range of the gamma compensation voltage based on a pixel driving voltage measurement value measured in synchronization with the scan signal at a plurality of positions on the display panel.


Find Patent Forward Citations

Loading…