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:
Oct. 11, 2011
Filed:
Dec. 10, 2007
Il-pyung Lee, Suwon-si, KR;
Cheol-woo Park, Suwon-si, KR;
Jae-byung Park, Seongnam-si, KR;
Hak-gyu Kim, Daegu, KR;
Min-gu Lee, Yongin-si, KR;
Sung-gu Lee, Pohang-si, KR;
Ung-jin Jang, Daejeon, KR;
Il-Pyung Lee, Suwon-si, KR;
Cheol-Woo Park, Suwon-si, KR;
Jae-Byung Park, Seongnam-si, KR;
Hak-Gyu Kim, Daegu, KR;
Min-Gu Lee, Yongin-si, KR;
Sung-Gu Lee, Pohang-si, KR;
Ung-Jin Jang, Daejeon, KR;
Abstract
The driving apparatus of a display device calculates a slope using a minimum gray, a maximum gray, a gray average of frame data in a current frame, and a gray average of frame data in a previous frame, and corrects and outputs the input frame data according to the slope, using frame data of one frame. As a result, a gray range of the input image signal can be extended, thereby improving visibility. Further, in a case of a motion picture, even when a difference of a gray range of images of adjacent frames is large, an original image is not distorted due to extension of a gray range. Also, even when noise is included in the input image signal, a gray range can be extended after removing the noise.