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. 12, 2021
Filed:
Apr. 09, 2019
Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan, CN;
Qingcheng Zuo, Wuhan, CN;
Abstract
A liquid crystal display device and a backlight control method thereof are provided. In response to that average pixel brightness of image data is less than a threshold, a first backlight driving signal is generated based on gray level information of the image data and a second backlight driving signal is generated based on saturation information of the image data. A convolution operation is performed on the first and the second backlight driving signal to output a backlight driving signal. The backlight driving signal is modulated and provided to a backlight module for producing backlight to a liquid crystal panel. Power consumption of the backlight module is lowered and meanwhile a dark effect caused in displaying images of a pure color is improved.