Liquid crystal display having high transmittance and high aperture ratio in which the counter electrodes having rectangular plate shape and the pixel electrodes having branches

摘要

The present invention is directed to provide a liquid crystal display having an improved picture quality, high transmittance and high aperture ratio.;The liquid crystal display comprises: an upper and a lower substrate opposed each other to be spaced apart; a liquid crystal layer interposed between inner surfaces of the upper and lower substrates, the liquid crystal layer including a plurality of liquid crystal molecules; a gate bus line and a data bus line formed in the lower substrate in a matrix configuration and defining sub-pixel regions; a counter electrode formed on each sub-pixel region of the lower substrate; a pixel electrode formed on each sub-pixel region of the lower substrate, wherein the counter electrode and the pixel electrode form an electric field; a thin film transistor formed at an intersection of the gate bus line and the data bus line, and switching a signal transmitted from the data bus line into the pixel electrode when the gate bus line is selected; and a homogeneous alignment layer formed on inner surfaces of the upper and lower substrates, wherein a first electric field is formed between the counter and pixel electrodes of a selected sub-pixel among the sub-pixel regions, and the electric field is formed as a diagonal line with respect to the gate bus line and the data bus line, wherein a second electric field is formed between the counter electrode and the pixel electrode of another sub-pixel adjacent to said selected sub-pixel, and the second electric field is formed as a diagonal line to make a symmetry with the first electric field.