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:
Dec. 10, 2024

Filed:

Mar. 22, 2023
Applicant:

Samsung Display Co., Ltd., Yongin-si, KR;

Inventor:

Se Byung Chae, Yongin-si, KR;

Assignee:

SAMSUNG DISPLAY CO., LTD., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3291 (2016.01); G09G 3/32 (2016.01); G09G 3/3233 (2016.01); G09G 3/3208 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3291 (2013.01); G09G 3/32 (2013.01); G09G 3/3233 (2013.01); G09G 3/3208 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0291 (2013.01); G09G 2320/02 (2013.01); G09G 2320/0276 (2013.01); G09G 2330/028 (2013.01);
Abstract

A display device includes: a pixel which emits light at a luminance corresponding to a data voltage applied thereto; and a data driver which supplies the data voltage to the pixel. The data driver includes: a first amplifier which outputs a first reference voltage; a first booster circuit including an input terminal connected to a first input terminal of the first amplifier, and an output terminal connected to a second input terminal of the first amplifier; a second amplifier which outputs a second reference voltage; a resistance string which receives the first and second reference voltages, and generate gamma voltages which are intermediate voltages between the first and second reference voltages; a digital-analog converter which outputs a gamma voltage corresponding to a gray scale of the pixel among the gamma voltages; and a source amplifier which outputs the gamma voltage as the data voltage.


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