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:
Jul. 16, 2013
Filed:
Nov. 11, 2010
Suhyung Kim, Paju-si, KR;
Seonggyun Kim, Gunpo-si, KR;
Suhyung Kim, Paju-si, KR;
Seonggyun Kim, Gunpo-si, KR;
LG Display Co., Ltd., Seoul, KR;
Abstract
A display device and a contrast enhancement method thereof are disclosed. The display device includes a display panel on which data lines and gate lines are positioned, a data driving circuit for driving the data lines, a scan driving circuit for driving the gate lines, a timing controller for controlling the data driving circuit and the scan driving circuit, and a data modulation circuit including a local modulation circuit and a global modulation circuit. The local modulation circuit maps luminance components of input digital video data to a luminance transfer curve selected or generated for each pixel based on an average picture level (APL) of each pixel and performs a first modulation on the luminance components of the input digital video data so as to expand a gray level distribution of a specific portion of an input image.