Shenzhen China Star Optoelectronics Technology Co., Ltd.

Liwei Zhu

Wenqin Zhao

Houliang Hu

Ping-sheng Kuo

Yuhong Fu

Zhengsong Xiong

The present invention provides a brightness compensation method, a system and a display panel in a Demura system. The method comprises obtaining an included angle &#x3b8; between a connection line of a pixel dot and a center point of a camera lens and a horizontal line as a camera is fixed; obtaining a brightness value f(&#x3b8;) corresponding to the &#x3b8; according to a pre-stored angle-brightness relationship; obtaining a correction brightness value of the pixel dot according to a calculation of the f(&#x3b8;) and a default formula, and performing brightness compensation to the display panel according to the brightness value of the pixel dot after correction. The technical solution provided by the present invention can reduce the influence of the view angle to the brightness and the influence of cos&#x3b8; to the brightness, and thus, it possesses the benefit of the brightness decay offset reduction.

Brightness compensation method, system and display panel in Demura system

The embodiment of the present invention discloses a look up table management method of a liquid crystal display and a device. The method can include: obtaining an input data and an output data from a first look up table; performing preset operation to the output data to obtain a middle data, of which a sum of absolute values is smaller than a sum of the output data, and associatively storing the input data and the middle data to be a second look up table; as the liquid crystal display performs display, performing an inverse operation of the preset operation to the middle data in the second look up table which is corresponded with a display data inputted in real time to obtain and output an output data corresponded with the display data.

Look up table management method of liquid crystal display and device

Disclosed is a method for obtaining a compensation value of gray scale of a pixel. The method comprises steps of: acquiring a display area of a display panel; dividing the display area equally into a plurality of first sub-areas according to a first preset rule, each of the first sub-areas comprising at least two pixels; obtaining pre-stored multinomial coefficients of each of the first sub-areas, and according to a second preset rule, establishing a multinomial corresponding to each of the first sub-areas; and obtaining a value range of an independent variable of the multinomial, and according to a corresponding multinomial, obtaining a compensation value of gray scale of each of the first sub-areas.

Method for obtaining compensation value of gray scale of a pixel

Disclosed is a method and system for driving a display panel, which relates to the technical filed of displays, and is able to solve the technical problem of undesired display effect resulting from flickers and blurred screens appeared on areas between the sub-areas of the display device. The present disclosure can be used in liquid crystal televisions, liquid crystal display devices, mobile phones, tablet PCs, etc.

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Guangdong, China

Liwei Zhu