Patent ID: 6867830

Claim:
A reflection-type color liquid crystal display apparatus comprising an active matrix substrate provided with a plurality of pixels each having a switching element and a reflection electrode in a matrix shape, a glass substrate having a transparent electrode a liquid crystal layer arranged between the active matrix substrate and the glass substrate, a phase plate and a polarizing plate, wherein for a normally black display system for displaying a black image on a lower voltage side of a voltage applied to the liquid crystal layer and displaying a white image at a certain voltage on a high voltage side, projections of Stokes parameter (S 1 , S 2 , S 3 ) of light between the phase plate and the liquid crystal layer on an S 1 -S 2 plane constitute a substantially linear line and polarized light at a reflecting plane of the reflection electrode is substantially circularly polarized light in any of wavelengths, and wherein retardation of the liquid crystal layer which is a product of a thickness and refractive index anisotropy of the liquid crystal layer falls in a range equal to or larger than 200 nm and equal to or smaller than 300 nm, a twist angle of the liquid crystal layer falls in a range equal to or larger than 40 degrees and equal to or smaller than 55 degrees, an angle made by a transmission axis of the polarizing plate and a liquid crystal orientation direction on a side of the glass substrate falls in a range equal to or larger than −32 degrees and equal to or smaller than −16 degrees, an azimuth angle of the phase plate which is an angle made by the transmission axis of the polarizing plate and a retarded phase axis of the phase plate falls in a range equal to or larger than 70 degrees and equal to or smaller than 81 degrees, and retardation of the phase plate falls in a range equal to or larger than 320 nm and equal to or smaller than 430 nm.