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.
Patent No.:
Date of Patent:
Feb. 13, 2018
Filed:
Dec. 10, 2015
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventors:
Janghoon Song, Uijeongbu-si, KR;
SeokHee Jeong, Daegu, KR;
ChangHeon Kang, Paju-si, KR;
Jung-Min Lee, Paju-si, KR;
Assignee:
LG DISPLAY CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3225 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3225 (2013.01); G09G 2300/043 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0243 (2013.01); G09G 2310/0262 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0238 (2013.01); G09G 2320/045 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01);
Abstract
Provided is an OLED display device that is in a black mode in which a threshold voltage of a driving TFT need not accurately be sensed. Further, a low voltage value of zero or less is constantly and continuously supplied to a data line during an initialization period, a sampling period, and a programming period in a pixel. As a result, when the pixel is driven in the black mode, a reference voltage and a data voltage having different values are not alternately supplied to the data line to minimize power consumption.