MODIFIED SKEW-ANGLE COMPENSATOR FOR LCD DISPLAYS WITH RESIDUAL RETARDANCE

摘要

A light valve device (105) having a first optical retardance is optically coupled to a modified skew angle compensator (104), which has a second optical retardance, and the sum of the first optical retardance and the second optical retardance equals a retardance of a quarter-wave retarder over a prescribed wavelength range. A method of substantially preventing dark­state light from being transmitted to display optics (111) in a liquid crystal (LC) display includes rotating the dark state light so that a polarization beam splitter (110) transmits the light back to the source (109).