Patent ID: 7746434

Claim:
A liquid crystal display device comprising: a first member having a first surface and a second surface; a second member having a third surface and a fourth surface; a liquid crystal layer positioned between the first member and the second member, wherein the liquid crystal layer generates a phase delay for light passing therethrough; a voltage application structure for applying a voltage to the liquid crystal layer, wherein the phase delay generated by the liquid crystal layer is varied between (λ/2+α) and α, wherein α has a non-zero value, according to the voltage that is applied; and a compensation film coupled to at least one of the first member and the second member, wherein the compensation film generates a compensation phase delay of −α, wherein the device operates in a normally white mode, and wherein the phase delay generated by the liquid crystal layer is (λ/2+α) for a white image when no voltage is applied and α for a black image when the voltage is applied.