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1. 发明申请

WO0203128A2 NEMATIC LIQUID CRYSTAL ELECTROOPTICAL ELEMENT AND DEVICE 审中-公开
标题翻译： NEMATIC液晶电极元件及器件
公开(公告)号：WO0203128A2
公开(公告)日：2002-01-10
申请号：PCT/CH0100412
申请日：2001-07-03
申请人： ROLIC AG , STALDER MARTIN , SCHADT MARTIN
发明人： STALDER MARTIN , SCHADT MARTIN
IPC分类号： G02F1/1337 , G02F1/139 , G02F1/13
CPC分类号： G02F1/1391 , G02F1/133753 , G02F1/1396 , G02F2001/133757 , G02F2001/133761
摘要： A liquid crystal electrooptical element comprises a pair of substrates (20, 21) positioned between a pair of polarising plates, electrodes defining pixel areas (1) and alignment layers disposed on the respective opposing inside surfaces of said substrates (20, 21) and a chiral nematic liquid crystal sandwiched between said pair of surfaces. At least one of the alignment layers is patterned in such a way that the azimuth or pretilt or both alignment directions (14 to 17, 16 to 18) are different at the substrate interfaces suppressing the growth of the ground state of the liquid crystal. When an initial electrical pulse is applied, one of the at least two bistable states is reached, wherein the contrast ratio between said bistable states is two or greater. A device with these elements is long-term bistable and does not require electronic refreshing as long as the displayed information is not changed. Therefore, the power consumption of this bistable device is minimal.
摘要翻译：液晶电光元件包括位于一对偏振板之间的一对基板（20,21），限定像素区域（1）的电极和设置在所述基板（20,21）的相应相对内表面上的对准层和夹在所述一对表面之间的手性向列型液晶。至少一个对准层被图案化，使得在抑制液晶的基态生长的衬底界面处的方位或预倾斜或两个对准方向（14至17,16至18）不同。当施加初始电脉冲时，达到至少两个双稳态之一，其中所述双稳态之间的对比度比率为两个或更大。具有这些元件的设备是长期双稳态的，并且只要显示的信息不被改变就不需要电子刷新。因此，这种双稳态器件的功耗很小。

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