Lg Display Co., Ltd.

Yong-Won Jo

Kyung-Rok Kim

Cheung-Hwan An

There is provided a driving method of a liquid crystal display device that is driven by an inversion method, including: calculating a total sum of changed amounts of data voltages between an (n&#x2212;1)-th row line and an n-th row line, using image data of the (n&#x2212;1)-th row line and image data of the n-th row line; generating common voltage data according to the total sum of the changed amounts of the data voltages; compensating for the common voltage data using a characteristic parameter of a liquid crystal panel; and generating a common voltage according to the compensated common voltage data, and outputting the common voltage to the liquid crystal panel.

Liquid crystal display device compensating for common voltage and method of driving the same

A liquid crystal display device includes a first data line and a second data line, the first and second data lines substantially parallel to one another, a first gate line, the first gate line crossing the first data line and the second data line, a display sub-pixel defined by the crossing of the first gate line and the first data line, a sensing sub-pixel defined by the crossing of the first gate line and the second data line, and a first switching element for connecting the second data line connected to one of a sensing processing unit and a ground terminal, wherein the display sub-pixel transmits light supplied from a light source in accordance to a data signal applied to the first data line, and the sensing sub-pixel senses light incident on the liquid crystal display device and generates charges corresponding to the sensed light.

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Goyang-si, South Korea

Yong-Won Jo