Lg Display Co., Ltd.

Eun Kyeong Kang

Do Young Kim

A liquid crystal display device (LCD) includes a liquid crystal panel having a plurality of gate lines, a plurality of data lines, and a plurality of common voltage supply lines, the liquid crystal panel being divided into a plurality of blocks, a plurality of gate driver integrated circuits (ICs) connected to the plurality of gate lines, a plurality of data driver ICs connected to the plurality of data lines, and a plurality of common voltage compensators to supply compensated common voltages to the common voltage supply lines the corresponding blocks.

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

An the driving method and apparatus including a liquid crystal display panel provided with a plurality of data lines; a brightness detector to detect a black brightness component and a white brightness component of data supplied to the plurality of data lines; a controller to compare magnitudes of a black brightness amount and a white brightness amount in the white and black brightness components detected by the brightness detector to generate a compared result and to control an application of a common voltage on a basis of a black brightness data level or a white brightness data level of data supplied to the plurality of data lines in accordance with the compared result; and a common voltage generator to generate a common voltage having an application level instructed by the controller and to supply the common voltage to the liquid crystal display panel.

Growing community of inventors

Gyeongbuk, South Korea

Eun Kyeong Kang