公开(公告)号：EP0208293B1

公开(公告)日：1990-02-21

申请号：EP86109288.0

申请日：1986-07-08

申请人： HITACHI, LTD.

发明人： Yokokura, Hisao ,  Kondo, Katsumi ,  Hanawa, Yasuo ,  Era, Susumu ,  Iwasaki, Kishiro ,  Nakata, Tadao ,  Isogain, Masato ,  Kitamura, Teruo ,  Mukoh, Akio ,  Kando, Yasuhiko

IPC分类号： G02F1/137

CPC分类号： G02F1/133345 ,  G02F1/133711 ,  G02F1/141 ,  Y10T428/1059

公开(公告)号：EP0208293A1

公开(公告)日：1987-01-14

申请号：EP86109288.0

申请日：1986-07-08

申请人： HITACHI, LTD.

发明人： Yokokura, Hisao ,  Kondo, Katsumi ,  Hanawa, Yasuo ,  Era, Susumu ,  Iwasaki, Kishiro ,  Nakata, Tadao ,  Isogain, Masato ,  Kitamura, Teruo ,  Mukoh, Akio ,  Kando, Yasuhiko

IPC分类号： G02F1/137

CPC分类号： G02F1/133345 ,  G02F1/133711 ,  G02F1/141 ,  Y10T428/1059

摘要： The element comprises a pair of transparent substrates, a pair of light-transmitting electrodes each provided on the respective substrates, a ferroelectric liquid crystal layer disposed between the pair of substrates and orientation control films for the molecules of the ferroelectric liquid crystal provided between the electrodes and the ferroelectric liquid crystal layer. The orientation control film controls a tilt angle of a biphenyle series nematic liquid crystal having biphenyl ring system below 1.5° and causes a uniform molecule orientation characteristic and a memory property for the ferroelectric liquid crystal element of smectic C * liquid crystal and having a liquid crystal layer thickness of even more than 4 µ m.