Patent ID: 8259264
Filing Date: 2012-09-04
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: lower and upper substrates facing each other and bonded together with a cell gap therebetween; a lower polarizer attached to a surface of the lower substrate; an upper polarizer attached to a surface of the upper substrate; liquid crystals in the cell gap; a plurality of image drive areas defined in the bonded lower and upper substrates; a first electrode group on the lower substrate in the image drive areas having an image drive voltage therebetween, the liquid crystals in the image drive areas controllable according to the image drive voltage; a plurality of viewing angle control areas defined in the bonded lower and upper substrates, for controlling a wide viewing angle or a narrow viewing angle; a first black matrix on a lower part of the upper substrate except the image drive areas and the viewing angle control areas; a second black matrix in the viewing angle control areas for preventing light leakage in the viewing angle control areas; a second electrode group on the lower substrate in the viewing angle control areas having a viewing angle control voltage therebetween, the liquid crystals in the viewing angle control areas controllable according to the viewing angle control voltage; and color filter layers on a rear surface of the upper substrate in the image drive areas, wherein the color filter layers are not formed on a rear surface of the upper substrate in the viewing angle control areas, wherein the lower substrate has a plurality of gate lines and a plurality of data lines, the first black matrix disposed so as to overlap with the gate and data lines, and the second black matrix is separately disposed so as not to overlap with the data lines.