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:
May. 23, 2017
Filed:
Dec. 29, 2014
Applicant:
Lg Display Co., Ltd., Seoul, KR;
Inventor:
Chang-Man Kim, Daegu, KR;
Assignee:
LG Display Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3258 (2016.01); G09G 3/3291 (2016.01); G09G 3/3233 (2016.01);
U.S. Cl.
CPC ...
G09G 3/3258 (2013.01); G09G 3/3233 (2013.01); G09G 3/3291 (2013.01); G09G 2300/0819 (2013.01); G09G 2310/0289 (2013.01); G09G 2320/029 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/043 (2013.01); G09G 2330/021 (2013.01);
Abstract
A method of compensating driving TFTs in an organic light emitting display device is discussed. According to an embodiment, the method includes applying a varied drain voltage to a drain of a specific driving TFT in one of a plurality of pixels; and compensating the specific driving TFT by the varied drain voltage, so as to maintain a constant drain-source voltage at the specific driving TFT.