Twisted nematic liquid crystal display devices with optical axis of birefringent layer inclined with respect to birefringent layer normal

摘要: The disclosure relates to electrically controlled display devices that use the polarization rotation properties of twisted nematic liquid crystal layers. A device comprises an optical cavity formed by two polarizers enclosing a layer with which uniaxial birefringent means are associated in order compensate for residual birefringence tends reduce contrast ratio device. Thus, homogeneity angular distribution is improved relation having no compensating means. disclosed can be applied particular data computers and television pictures directly or projection.