公开(公告)号：US5315420A

公开(公告)日：1994-05-24

申请号：US885540

申请日：1992-05-19

申请人： Yozo Narutaki ,  Hisakazu Nakamura

发明人： Yozo Narutaki ,  Hisakazu Nakamura

IPC分类号： G02F1/1335 ,  G02F1/1347 ,  G02F1/135 ,  G02F1/139 ,  G02F1/133

CPC分类号： G02F1/1347 ,  G02F1/135 ,  G02F1/1396

摘要： An optical writing type liquid crystal display device is provided with: two twisted nematic liquid crystal cells, each of which has a direction different from each other on twist; a first glass substrate disposed in one liquid crystal cell; and a second glass substrate disposed in another liquid crystal cell. The second glass substrate is laminated to the first glass substrate adjacent to the second glass substrate so as to be at right angles with each other on rubbing directions of the glass substrates. The two twisted nematic liquid crystal cells are arranged such that a polarization axis of a reading light incident onto the two twisted nematic liquid crystal cells is not coincident with the rubbing directions of the two twisted nematic liquid crystal cells.

摘要翻译： 光写入型液晶显示装置具有两个扭转向列型液晶单元，每个扭转向列型液晶单元在扭转时具有彼此不同的方向。 布置在一个液晶单元中的第一玻璃基板; 以及设置在另一个液晶单元中的第二玻璃基板。 将第二玻璃基板层压到与第二玻璃基板相邻的第一玻璃基板上，以便在玻璃基板的摩擦方向上彼此成直角。 两个扭曲向列型液晶单元被配置为使得入射到两个扭曲向列型液晶单元上的读取光的偏振轴与两个扭曲向列型液晶单元的摩擦方向不一致。

公开(公告)号：US4779960A

公开(公告)日：1988-10-25

申请号：US17080

申请日：1987-02-20

申请人： Shuichi Kozaki ,  Yukiko Ichimura ,  Yozo Narutaki

发明人： Shuichi Kozaki ,  Yukiko Ichimura ,  Yozo Narutaki

IPC分类号： G02F1/133 ,  C09K19/42 ,  G02F1/1335 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/139 ,  G02F1/13

CPC分类号： C09K19/42 ,  G02F1/133711 ,  G02F1/1397 ,  G02F2001/133531

摘要： The twisted nematic liquid crystal display device of this invention relates to a liquid crystal cell having a twisted spiral structure by disposing a pair of substrates opposedly to each other with the rubbed orientation films formed on the electrodes, placing a nematic liquid crystal having a positive dielectric anisotrophy containing an optically active substance between this pair of substrates, and shifting the orientation direction of the liquid crystal molecules by a specified angle of .phi. on both substrates, in which the angle .phi. is set in a range of 210.degree..ltoreq..phi..ltoreq.300.degree., and the ratio d/p of the spiral pitch p of the liquid crystal molecules to layer thickness d of the liquid crystal cell is set in a range of (.phi./360-1/4)

摘要翻译： 本发明的扭转向列型液晶显示装置涉及一种具有扭曲螺旋结构的液晶单元，其通过将形成在电极上的摩擦取向膜彼此相对设置的一对基板，放置具有正电介质的向列型液晶 在这对基板之间含有光学活性物质的各向异性，并且将两个基板上的液晶分子的取向方向以指定的phi角移动，其中角度φ设定在210°的范围内， / = 300°，液晶分子的螺旋间距p与液晶单元的层厚d的比d / p设定在（phi / 360-1 / 4）