Patent ID: 7978301
Filing Date: 2011-07-12
Classification: C09K,G02F

Abstract:
1. A liquid crystal display device comprising a first substrate and a second substrate; polarizing plates provided on the first substrate and the second substrate, respectively; a liquid crystal layer located between the first substrate and the second substrate; and pixel electrodes and common electrodes provided on the first substrate, wherein: the liquid crystal layer has such a property that optical anisotropy is induced therein by a change of an optically isotropic state caused by application of a voltage; the pixel electrodes or the common electrodes are formed in an interdigital form; a surface layer is formed directly on interdigitally formed pixel electrodes, each interdigitally formed pixel electrode having side walls tapered from a top to a bottom with a taper angle θ in the range of 0°<θ<45°; an electric field is applied to the liquid crystal layer by a potential difference applied between the pixel electrodes and the common electrodes, and the surface layer is located in contact with a surface of the liquid crystal layer and the surface layer has a periodic structure of 400 nm or less in size, and the surface layer is formed on the first substrate only and is not formed on the second substrate.