Patent ID: 9151992
Filing Date: 2015-10-06
Classification: G02B,G02F

Abstract:
1. A liquid crystal display device comprising: a first substrate and a second substrate in which a plurality of pixel areas are defined, wherein the first substrate faces and is spaced apart from the second substrate; a plurality of patterns on an inner surface of the first substrate facing the second substrate, and making a step height; an insulating layer on the plurality of patterns; a black matrix on the surface of the second substrate facing the first substrate, and having a plurality of openings corresponding to the pixel areas; a color filter layer on the inner surface of the second substrate facing the first substrate, and including a red color filter, a green color filter, and a blue color filter that are sequentially arranged in a first direction in correspondence to the pixel areas; and a plurality of first column spacers and a plurality of second column spacers over the black matrix, and having different heights, wherein each first column spacer contacts the insulating layer over one of the patterns, each second column spacer is spaced apart from the insulating layer over another one of the patterns, and an arrangement density of the first column spacers is lower than an arrangement density of the second column spacers, wherein the liquid crystal display device further comprises: a plurality of gate lines and a plurality of data lines on an inner surface of the first substrate facing the second substrate and crossing each other to define the pixel areas; a thin film transistor connected to each of the gate lines and the data lines; a first passivation layer on the thin film transistor, and having a flat surface; a common electrode on the first passivation layer over a substantially entire surface of the first substrate; a plurality of common lines on the common electrode; a second passivation layer on the common lines; and a pixel electrode in each pixel area on the second passivation layer, overlapping the common electrode, and including a plurality of pixel patterns, wherein the plurality of patterns are the common lines.