Patent ID: 6693689
Filing Date: 2004-02-17
Classification: G02F

Abstract:
A reflective color liquid crystal display device, comprising:first and second substrates spaced apart from and opposite to each other; a liquid crystal layer interposed between the first and second substrates having liquid crystal molecules; a linear polarizer arranged over the first substrate, the polarizer converting natural light into linearly polarized light; a retardation film disposed under the linear polarizer, the retardation film converting the linearly polarized light into circularly polarized light; a negative uniaxial film arranged between the retardation film and the liquid crystal layer, the uniaxial film compensating for a phase difference between a direction of an incident light entering the liquid crystal layer and a direction of the liquid crystal molecules adjacent to the first and second substrates of the liquid crystal layer; a cholesteric liquid crystal color filter disposed under the liquid crystal layer, the cholesteric liquid crystal color filter selectively reflecting light received from the liquid crystal layer; and a black background arranged under the color filter, the black background absorbing light passing through the cholesteric liquid crystal color filter.