发明名称 Liquid crystal display device
摘要 An object of the invention is to prevent color shifting which occurs in a liquid crystal display device in a white display state as well as in a black display state. The liquid crystal display device includes a single polarization layer, a single phase retardation layer, a reflective layer, and a liquid crystal layer, and produces a display by utilizing light reflected from the reflective layer. Based on the wavelength lambda of incident light, the retardation value ReF of the phase retardation layer is set approximately equal to (1/4+K/2) lambda, and the retardation value ReL of the liquid crystal layer is set approximately equal to (1/2+L/2)lambda (K=0, 1, 2, . . . : L=0, 1, 2, . . . ). The angle Deltaphi that the absorption axis of the polarization layer makes with the retardation axis of the phase retardation layer is set as 0°<Deltaphi<45° or 45°<Deltaphi<90°. This prevents the color shifting in the white display state as well as in the black display state in the liquid crystal display device, and improves the contrast.
申请公布号 US6661483(B1) 申请公布日期 2003.12.09
申请号 US20000620731 申请日期 2000.07.20
申请人 SHARP KABUSHIKI KAISHA 发明人 MORIWAKI HIROYUKI;TANAKA MITSUHIRO
分类号 G09F9/35;G02F1/133;G02F1/1335;G02F1/13363;G02F1/139;G09F9/00;(IPC1-7):G02F1/133 主分类号 G09F9/35
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