Patent ID: 7843540
Filing Date: 2010-11-30
Classification: G02F

Abstract:
1. A liquid crystal display device, comprising: a first substrate; a second substrate; a liquid crystal layer disposed between the first and second substrates, the liquid crystal layer being optically isotropic when a selective electric field is not applied, the liquid crystal layer being optically anisotropic when an electric field is applied, a refractive index of a material of the liquid crystal layer being changed depending on a strength of an electric field the liquid crystal layer including a composite liquid crystal composition, the composite liquid crystal composition including a low molecule liquid crystal material and a polymer network, the polymer network being formed among constituent molecules of the low molecule liquid crystal material, and the polymer network being formed by polymerizing nonliquid crystal monomers, the low molecule liquid crystal material having a blue phase between a cholesteric phase and an isotropic phase; a first pixel formed on the first substrate, the first pixel having a first electric field strength; a second pixel formed on the first substrate, the second pixel having a second electric field strength, the first electric field strength and the second electric field strength being different; and a reflective film formed between the first substrate and the liquid crystal layer, a portion of the liquid crystal layer being overlapped with the reflective film, the portion of the liquid crystal layer having an optical phase difference Δnd, the optical phase difference Δnd being approximately λ/4.