Patent ID: 9646550
Date: 2017-05-09
CPC Classifications: G09G

Claim:
1. A liquid crystal display device comprising: a display panel that displays a picture thereon; first to (n)th upper data drive ICs that apply pixel voltages in a first driving direction to one end of each data line in the display panel, respectively, the first to (n)th upper data drive ICs being arranged in this order from one of a left side and a right side of the display panel to the other one of the left and right sides of the display panel, wherein n is a natural number greater than 1; first to (n)th bottom data drive ICs that apply pixel voltages in a second driving direction to the other end of each data line, respectively, the first to (n)th bottom data drive ICs being arranged in this order from the other one of the left and right sides of the display panel to the one of the left and right sides of the display panel, wherein the first driving direction and the second driving direction are opposite driving directions, wherein one of the first to (n)th upper data drive ICs and a corresponding one of the first to (n)th bottom data drive ICs are connected to the same data line for each of the plurality of scan lines; a first timing controller that generates an upper data control signal and supplies picture data and the upper data control signal to the upper data drive ICs for controlling operation of the upper data drive ICs, wherein the first timing controller controls the upper data drive ICs to supply picture data from the first upper data drive IC positioned at the one of the left and right sides of the display panel to the (n)th upper data drive IC positioned at the other one of the left and right sides of the display panel; and a second timing controller that generates a bottom data control signal and supplies the same picture data as the first timing controller and the bottom data control signal to the bottom data drive ICs for controlling operation of the bottom data drive ICs, wherein the second timing controller controls the bottom data drive ICs to supply the same picture data from the first bottom data drive IC positioned at the other one of the left and right sides of the display panel to the (n) the bottom data drive IC positioned at the one of the left and right sides of the display panel, wherein one of the first timing controller and the second timing controller is operated in a master mode, and the other timing controller is operated in a slave mode, for controlling the supply of the picture data in one of the first and second driving directions, respectively, and wherein for each pixel, the upper data drive ICs apply a pixel voltage with a predetermined polarity to one end of data line and the bottom data drive ICs apply a pixel voltage with a predetermined polarity to the other end of the data line, such that the same pixel voltage with the same polarity is applied to the same pixel from both ends of any one data line during a frame.