Patent ID: 6504588
Filing Date: 2003-01-07
Classification: G02F

Abstract:
A reflection-type color liquid crystal display device, comprising:an STN liquid crystal cell having nematic liquid crystal, which is aligned at a twist angle of 180Â° to 270Â°, sandwiched between a transparent first substrate having first electrodes and a transparent second substrate having second electrodes, said first electrodes and said second electrodes opposing to each other across said nematic liquid crystal, and said first substrate or said second substrate being provided with a color filter of a plurality of colors; an absorption-type polarizing film which has a transmission axis and an absorption axis, placed on the visible side of said second substrate; a retardation film placed between said absorption-type polarizing film and said second substrate; and a diffusing layer, a reflection-type polarizing film which has a transmission axis and a reflection axis, and a light absorbing layer absorbing almost all incident light, which are arranged in order on the other side of the visible side of said first substrate, said light absorbing layer containing fluorescent material, wherein conditions of nx>nz>ny of the retardation film are satisfied, where nx is the refractive index in a stretching direction of said retardation film, ny is the refractive index in a direction orthogonal to the stretching direction, and nz is the refractive index in a thickness direction.