Patent ID: 8233124

Claim:
A liquid crystal display device, comprising: a display screen including a plurality of color pixels and viewing angle control pixels, each of the color pixels and the viewing angle control pixels including liquid crystal molecules, an alignment direction of the liquid crystal molecules in the viewing angle control pixels being inclined to a vertical or horizontal direction with respect to the display screen, wherein the alignment direction of the liquid crystal molecules in the viewing angle control pixels is different from the alignment direction of the liquid crystal molecules in the color pixels, wherein if a voltage is applied to the viewing angle control pixel, the viewing angle control pixel displays black toward a front direction and white toward left and right directions or up and down directions, so that the viewing angle control pixel provides the confidentiality of a display information, displayed by the color pixels, in the left and right directions or the up and down directions, and wherein if the voltage is not applied to the viewing angle control pixel, the viewing angle control pixel displays black, so that the display information displayed by the color pixels is not affected.