发明名称 LIQUID CRYSTAL DISPLAY ELEMENT
摘要 PURPOSE:To provide the high-grade liquid crystal display which is improved in visual angle characteristic and has excellent visibility. CONSTITUTION:Between two sheets of polarizing plates 1 and 4, are disposed a liquid crystal cell 3 for driving which is twist-oriented when no voltage is impressed between two sheets of the substrates and an optically anisotropic element 2 whose optical axis is continuously twist oriented. The optical axis of optically anisotropic element 2 is shifted to the absorption axis or transmission axis of the polarizing plate on the side where the light escapes finally by the angle phi determined by the following equation. phi=DELTAn<2>XpXdX180 deg./(4lambda<2>); where DELTAn: the optical anisotropy of the optically anisotropic element, p: the twist pitch length of the optical axis of the optically anisotropic element, d: the thickness of the optically anisotropic element, lambda: the wavelength of a visible wavelength range.
申请公布号 JPH0611714(A) 申请公布日期 1994.01.21
申请号 JP19920166492 申请日期 1992.06.25
申请人 TOSHIBA CORP 发明人 ISHIKAWA MASAHITO;HIRATA JUNKO;YAMAMOTO TOMIAKI;HISATAKE YUZO;HADO HITOSHI
分类号 G02F1/1333;G02F1/1335;G02F1/1337 主分类号 G02F1/1333
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