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公开(公告)号：US3994567A
公开(公告)日：1976-11-30
申请号：US635880
申请日：1975-11-28
申请人： Makoto Matsuo , Takashi Toida , Ichiro Tsunoda
发明人： Makoto Matsuo , Takashi Toida , Ichiro Tsunoda
IPC分类号： G09F9/00 , C09K19/56 , G02F1/1337 , G09F9/35 , G02F1/13
CPC分类号： C09K19/56 , G02F1/133723 , Y10T428/1023
摘要： An electro-optical cell comprises, on an optical path, a pair of electrode base plates and a nematic liquid crystal material having a positive dielectric anisotropy and sandwiched between the electrode base plates, each of which comprises a transparent base plate having an inner surface, an electrode film provided on the inner surface, and a polyimide resin film orientated in one direction and provided on the inner surface over the electrode film, the electrode base plates being mutually disposed on opposite sides of the liquid crystal material with their respective polyimide resin films on their inner sides in mutually facing state with the orientated direction of one polyimide resin film intersecting that of the other as viewed along the optical path. An advantageous feature of this electro-optical cell is that the electrode base plates thereof has durable and heat-resistant orientation which can impart a uniform, initial alignment of ample strength to the liquid crystal.
摘要翻译： 电光单元在光路上包括一对电极基板和具有正介电各向异性的向列型液晶材料，夹在电极基板之间，每个电极基板包括具有内表面的透明基板， 设置在内表面上的电极膜和沿一个方向取向并且设置在电极膜上的内表面上的聚酰亚胺树脂膜，电极基板相互设置在液晶材料的相对侧上，并且各自的聚酰亚胺树脂膜 在其相互面对状态下，沿着光路观察到的一个聚酰亚胺树脂膜的方向与另一个聚酰亚胺树脂膜相交。 该电光电池的有利特征在于其电极基板具有耐久且耐热的取向，其可以赋予液晶足够强度的均匀的初始对准。
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公开(公告)号：US3958167A
公开(公告)日：1976-05-18
申请号：US420698
申请日：1973-11-30
申请人： Fumio Nakajima , Akira Nikaido , Mitsuo Onda , Takayasu Machida , Takashi Toida
发明人： Fumio Nakajima , Akira Nikaido , Mitsuo Onda , Takayasu Machida , Takashi Toida
摘要： A reversible pulse-motor driving circuit comprising a steady driving circuit composed of an oscillator circuit, a frequency divider circuit, a waveform conversion circuit, and a driving circuit, and a fast correction driving-circuit composed of a fast correction set-circuit, a first gate circuit, a detector circuit, a normal and reverse discrimination circuit, a conversion change-over circuit, a pulse selector circuit, a first memory circuit, a second gate circuit and a second memory circuit, whereby a user can hear a time signal delivered from a calculation circuit and only push a pushbutton to rotate the pulse motor in a reverse direction when the second hand is ahead of the correct time, and rotate the pulse motor in a forward direction when the second hand is lagging with respect to the correct time, and the use of a frequency higher than the steady driving frequency permits a fast setting of the second, minute or hour hand to the correct time. A reversible pulse motor for use in timepiece and more particularly in wrist watch is disclosed which can be rotated in forward and reverse directions by the driving circuit, which is small in size and which can operate with a minimal consumption of the electtric power.
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