Patent ID: 6914654

Claim:
An LCD system capable of fast mode operation with high contrast, said system comprising: a) a source of polarized lights; b) an electrically controlled birefringence LC cell having a surface upon which said light is incident, wherein said cell includes LC bulk material contained between and adjoining an upper and a lower glass substrate, said upper substrate having said surface; an optically anisotropic intermediate layer interposed between said upper substrate and said LC material; wherein said cell includes LC bulk material contained between an upper and a lower glass substrate and adjoining said lower glass substrate; wherein said intermediate layer is oriented in the same plane as said LC bulk material when in an unbiased state; wherein an ordinary index of refraction and an extraordinary index of refraction of said intermediate layer are the same as an ordinary index of refraction and an extraordinary index of refraction of said bulk LC material; such that a boundary layer of said LC bulk material adjacent to said intermediate layer in combination with said intermediate layer forms a net isotropic stack.