Patent ID: 6833892
Filing Date: 2004-12-21
Classification: C09K,G02F

Abstract:
A liquid crystal display device, comprising:a liquid crystal cell including an upper substrate, a lower substrate facing the upper substrate, and a liquid crystal layer encapsulated between the upper substrate and the lower substrate, the liquid crystal cell having a display area divided into pixel regions; a reflective layer formed of a cholesteric liquid crystal layer arranged on an inner surface of the lower substrate, and having a plurality of unflat portions, to reflect at least a portion of elliptically polarized light having a predetermined rotation direction; an upper-substrate side elliptically-polarized-light input device to cause elliptically polarized light to enter the liquid crystal layer from the upper substrate, the liquid crystal layer reversing the component of elliptically polarized light that is incident during one of a selection electric field applied state and a non-selection electric field applied state, and not changing the component of the elliptically polarized light during the other of the selection electric field applied state and the non-selection electric field applied state; and a partitioning wall arranged in the reflective layer at a position corresponding to the periphery of at least one of the pixel regions, the partitioning wall being higher in level than a peak of the unflat portion of the cholesteric liquid crystal layer.