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:
Nov. 25, 2014
Filed:
May. 31, 2012
Hyungjung Kim, Seoul, KR;
Dongkyoung OH, Gumi-si, KR;
Sangho Yu, Paju-si, KR;
Hyunki Lee, Paju-si, KR;
Munjun Lee, Paju-si, KR;
Hyungjung Kim, Seoul, KR;
DongKyoung Oh, Gumi-si, KR;
SangHo Yu, Paju-si, KR;
HyunKi Lee, Paju-si, KR;
MunJun Lee, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
An organic light emitting display device includes: a display panel including red, green, blue, and white (RGBW) subpixels; a first data conversion unit configured to convert red, green, and blue (RGB) data signals into RGBW data signals; an average picture level calculation unit configured to calculate an average picture level (APL) for the RGB data signals; a peak luminance controller configured to control luminance of at least one frame by using the APL and a look-up table; and a data compensation unit configured to perform a compensation operation on at least one of the RGB data signals in response to color coordinates of white (W) data signals among the RGBW data signals output from the first data conversion unit being different from a target value.