发明名称 TWISTED NEMATIC TYPE LIQUID CRYSTAL DISPLAY ELEMENT
摘要 PURPOSE:To prevent generation of inversion of brightness and darkness and a change of hues depending on visual angles. CONSTITUTION:A first phase difference ' plate 7 which includes the director direction of liquid crystal molecules existing in the central position in the thickness direction of a panel in a medium Contrast display state, has the optical axes included in the plane perpendicular to the panel plane, has the same inclination as the director direction of the liquid crystal molecules with respect to the perpendicular to the panel plane at the plane perpendicular to the panel plane, and has optically negative refractive index anisotropy, and a second phase difference plate 8 which includes the director direction of the liquid crystal molecules existing in the central position in the thickness direction of the panel in the medium contrast display state, has the optical axes included in the plane perpendicular to the panel plane, has the inclination opposite to the director direction of the liquid crystal molecules with respect to the perpendicular to the panel plane at the plane perpendicular to the panel plane and has optically positive refractive index anisotropy, are arranged between a glass substrate 1b and a polarizing plate 3b.
申请公布号 JPH07244280(A) 申请公布日期 1995.09.19
申请号 JP19940056843 申请日期 1994.03.03
申请人 NEC CORP 发明人 WARASHINA NOBORU
分类号 G02F1/1335 主分类号 G02F1/1335
代理机构 代理人
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