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. 12, 2025

Filed:

Jan. 19, 2023
Applicant:

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

Inventors:

Jang-Mi Lee, Hwaseong-si, KR;

Eunjin Choi, Yongin-si, KR;

Kihyun Pyun, Gwangmyeong-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); G01R 19/165 (2006.01); G09G 3/00 (2006.01); G09G 3/3258 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G01R 19/165 (2013.01); G09G 3/006 (2013.01); G09G 3/3258 (2013.01); G09G 2330/00 (2013.01); G09G 2330/04 (2013.01); G09G 2330/08 (2013.01);
Abstract

Disclosed is a display device including a display panel, a voltage generator, a current detector, and a current controller. The display panel includes a pixel for receiving a driving voltage. The voltage generator generates the driving voltage, determines a voltage level of the driving voltage based on a voltage control signal, and performs a protection operation in response to a protection signal. The current detector detects a driving current of the display panel and outputs a current signal corresponding to the detected driving current. The current controller includes a current comparison unit that generates a result signal by comparing a present current level of the current signal from the current detector to a previous current level and a protection operating unit that receives the result signal and outputs the protection signal based on a change in the load and a difference between the target current and the current signal.


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