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. 15, 2017
Filed:
Jan. 20, 2014
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Shen-Sian Syu, Shenzhen, CN;
Abstract
The present disclosure provides a method and a device for adjusting a Gamma curve of TFT-LCD. The method comprises steps of: capturing grayscale images of the TFT-LCD to be tested which are displayed under a series of specific grayscale voltages; calculating grayscale information corresponding to the images according to the captured grayscale images, so as to obtain a Gamma curve; determining an uneven area in the Gamma curve based on the grayscale information corresponding to two adjacent grayscale voltages; calculating depth of the uneven area; and adjusting amplitude of any one or both of the two adjacent grayscale voltages based on the depth so that the Gamma curve between the two adjacent grayscale voltages is even. The present disclosure can improve the Gamma curve, thus eliminating the display color cast or the brightness abnormity.