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. 27, 2026

Filed:

Oct. 06, 2022
Applicant:

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

Inventors:

Kihyun Pyun, Gwangmyeong-si, KR;

Myoungseop Song, Cheonan-si, KR;

Eunjin Choi, Yongin-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/00 (2006.01); G01R 19/32 (2006.01); G01R 31/28 (2006.01); G01R 19/165 (2006.01); G01R 27/02 (2006.01); G09G 3/22 (2006.01);
U.S. Cl.
CPC ...
G09G 3/006 (2013.01); G01R 19/32 (2013.01); G01R 31/2825 (2013.01); G01R 19/165 (2013.01); G01R 27/02 (2013.01); G09G 3/22 (2013.01); G09G 2300/0426 (2013.01); G09G 2320/029 (2013.01); G09G 2320/041 (2013.01); G09G 2330/00 (2013.01); G09G 2330/02 (2013.01); G09G 2330/021 (2013.01); G09G 2330/12 (2013.01);
Abstract

A display device includes: a display panel including pixels, a power voltage generator for applying a power current to the display panel in a driving period; and a current sensor including a sensing resistor disposed between the display panel and the power voltage generator; a sensing current determiner for determining a sensing current; and a constant current generator for generating a constant current to the sensing resistor in a test period. The sensing current determiner determines a test sensing current based on a test sensing voltage applied to opposite electrodes of the sensing resistor in the test period and an initial sensing resistance, determines a first sensing resistance based on the test sensing current, the initial sensing resistance, and the constant current, and determines the sensing current based on a driving sensing voltage applied to the electrodes of the sensing resistor in the driving period and the first sensing resistance.


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