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:
Apr. 01, 2025

Filed:

Dec. 16, 2022
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Chanbong Yu, Suwon-si, KR;

Yeongshin Jang, Suwon-si, KR;

Woonyoung Lee, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/2096 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0276 (2013.01); G09G 2330/028 (2013.01);
Abstract

A display driver is provided. The display driver includes: a plurality of source amplifiers connected to a plurality of source lines of a display panel, wherein one of the plurality of source amplifiers includes an input stage and an output stage configured to output a grayscale voltage to a source line of the plurality of source lines; and a decoder circuit configured to provide at least one of a plurality of gamma voltages to the input stage based on image data. The output stage includes a plurality of unit circuits connected to each other in parallel between the input stage and an output pad connected to the source line. Each of the plurality of unit circuits includes a buffer switch and an output buffer connected to the input stage, and is connected to the output pad through a resistor.


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