Liquid crystal display device

摘要

A liquid crystal display device has substrates opposed to each other, a nematic liquid crystal layer having a positive dielectric anisotropy and homogeneously oriented to have a twisted structure where liquid crystal molecules are twisted with a twist angle from 180 DEG to 300 DEG , the nematic liquid crystal layer being held between the substrates, polarizers between which the liquid crystal layer is placed, and a phase plate placed between the liquid crystal layer and one of the polarizers. In this display device, a product DELTA nxd(PH) of a birefringent anisotropy DELTA n and a thickness d of the liquid crystal layer and a product DELTA nxd(PH) of a birefringent anisotropy DELTA n and a thickness d of the phase plate satisfy a relational condition: 0.0< DELTA nxd(LC)- DELTA nxd(PH)<600 nm.