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公开(公告)号：EP0840160A2
公开(公告)日：1998-05-06
申请号：EP97308853.7
申请日：1997-10-30
IPC分类号： G02F1/1335 , G02F1/141 , G02F1/139
CPC分类号： G02F1/1393 , G02F1/13363 , G02F2001/133565 , G02F2001/133638 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/02 , G02F2413/08 , G02F2413/15
摘要： A reflective liquid crystal device comprises a polariser 1 and a mirror 2 between which are disposed several retarders 3, 4, 5. At least one of the retarders 4 is a variable liquid crystal element whose optic axis is switchable so as to switch the device between a reflective state and a non-reflective state. In the non-reflective state, the total retardance of the retarders 3, 4, 5 between the polariser 1 and the mirror 2 is equal to an odd number of quarter wavelengths for a wavelength at or adjacent the middle of the visible spectrum.
摘要翻译： 反射型液晶器件包括起偏振器1和反射镜2，在它们之间设置有多个延迟器3,4,5。至少一个延迟器4是可变液晶元件，其光轴可切换以便在 反射状态和非反射状态。 在非反射状态下，起偏器1和反射镜2之间的延迟器3,4,5的总延迟等于在可见光谱的中间或邻近可见光谱的中间的波长的奇数个四分之一波长。
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公开(公告)号：EP0840160A3
公开(公告)日：1998-12-30
申请号：EP97308853.7
申请日：1997-10-30
IPC分类号： G02F1/1335 , G02F1/141 , G02F1/139
CPC分类号： G02F1/1393 , G02F1/13363 , G02F2001/133565 , G02F2001/133638 , G02F2001/1398 , G02F2202/40 , G02F2203/02 , G02F2413/02 , G02F2413/08 , G02F2413/15
摘要： A reflective liquid crystal device comprises a polariser 1 and a mirror 2 between which are disposed several retarders 3, 4, 5. At least one of the retarders 4 is a variable liquid crystal element whose optic axis is switchable so as to switch the device between a reflective state and a non-reflective state. In the non-reflective state, the total retardance of the retarders 3, 4, 5 between the polariser 1 and the mirror 2 is equal to an odd number of quarter wavelengths for a wavelength at or adjacent the middle of the visible spectrum.
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