Patent ID: 7365813

Claim:
A liquid crystal display apparatus, comprising: a polarization plate, a phase difference plate, a pair of oppositely disposed substrates at least one of which is a transparent substrate and the other is a reflective substrate, a liquid crystal disposed between said pair of substrates, said liquid crystal being aligned homeotropically with respect to the pair of substrates when no voltage is applied to the liquid crystal, and means for applying a voltage to said liquid crystal so that said liquid crystal is aligned obliquely with respect to the pair of substrates with an angle depending on the voltage applied to said liquid crystal, wherein said phase difference plate has a retardation so that light passing through said liquid crystal, said phase difference plate, and said polarization plate assumes chromatic color when the voltage is not applied to said liquid crystal, and wherein the retardation of said liquid crystal cancels the retardation of said phase difference plate when the voltage is applied to said liquid crystal.