发明名称 Normally black liquid crystal display with twisted compensator and DELTA nd of 1500-1800 nm
摘要 In a reflection-type color liquid crystal display which can display a bright, high-saturation negative-type color display with a background in black or deep color, a pair of polarizing films 8 and 9 are disposed on both sides of a liquid crystal 20 which has a nematic liquid crystal 7 between a pair of substrates 1 and 4 having electrodes respectively, and a twisted retardation film 10 is disposed between the polarizing films 9 and the liquid crystal device 20. The intersecting angle between absorption axes of the pair of polarizing films 8 and 9 is set to be in the range of 60 DEG to 120 DEG , the DELTA nd value of the liquid crystal device 20 is set to be in the range of 1500 nm to 1800 nm, and the DELTA nd value of the twisted retardation film 10 is arranged to be in nearly the same range as the DELTA nd value of the liquid crystal device 20.
申请公布号 US6141070(A) 申请公布日期 2000.10.31
申请号 US19980096492 申请日期 1998.06.12
申请人 CITIZEN WATCH CO., LTD. 发明人 KANEKO, YASUSHI
分类号 G02F1/1335;G02F1/13363;G02F1/139;(IPC1-7):G02F1/133 主分类号 G02F1/1335
代理机构 代理人
主权项
地址