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:
Aug. 16, 2011
Filed:
Jun. 28, 2007
IN Hwam Kim, Seoul, KR;
Seung Chan Byun, Incheon, KR;
Sang Ho Yu, Seongnam-si, KR;
Jin Hyoung Kim, Goyang-si, KR;
In Hwam Kim, Seoul, KR;
Seung Chan Byun, Incheon, KR;
Sang Ho Yu, Seongnam-si, KR;
Jin Hyoung Kim, Goyang-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic light emitting diode display for changing a data corresponding to an image property to prevent a deterioration of a life span of an organic light emitting diode device and to improve a picture quality, and a driving method thereof are disclosed. In the method, digital data of an input image of a screen are analyzed to analyze an accumulated density distribution for each gray scale range of an image which to be displayed on the screen. The digital data of the input image is modulated to lower a tilt of a gamma curve corresponding to a pre-set high gray scale range among gamma curves of the input image if data belonged to the high gray scale range turned out to be dominant according to the analyzed result. The digital data of the input image is modulated to raise a tilt of a gamma curve corresponding to a specific gray scale range among gamma curves of the input image if data belonged to the specific gray scale is determined as a dominant of the digital data of the input image according to the analyzed result. And the modulated digital data is converted into an analog signal.