Patent ID: 7411645
Filing Date: 2008-08-12
Classification: G02B,G02F

Abstract:
1. A liquid crystal display device, comprising: a liquid crystal display element including a liquid crystal layer and comprising a plurality of unit cells that constitute a multiplicity of pixels, each of the unit cells having at least one oriented film with a rib having one of a semispherical shape, a triangular prism shape and a polygonal pyramid shape protruded at the center thereof, liquid crystal molecules on a surface of said liquid crystal layer being oriented by the rib at angles radiating therefrom; and a phase difference optical element arranged at least on one side in a thickness direction of said liquid crystal display element, the phase difference optical element being divided into a plurality of oriented compensation regions, wherein the phase difference optical element includes a base material having orientability and a phase difference layer made of a liquid crystal material that can form a nematic phase, and the phase difference layer is formed in a pattern on the base material so as to form at least two different oriented compensation regions, and the liquid crystal material has different directions of refractive index anisotropy in the at least two different oriented compensation regions in the same phase difference layer and fixed in that state.