发明名称 Reflective liquid crystal display device having bright light display and high contrast
摘要 In a reflective liquid crystal display device, a retardation DELTAndLC of a liquid crystal cell ranges from 705 nm to 890 nm. When alignment directions a and b of alignment layers are viewed from the light incident side, and the direction between the alignment directions a and b that bisects the interior angle, which is formed by an intersection of the alignment directions a and b, and the alignment directions a and b, is designated a normal direction X, a retardation DELTAndRF1 of a first retardation film ranges from 195 nm to 280 nm, an angle formed by a delayed phase axis RF1 of the retardation film with respect to the normal direction X ranges from 75° to 115°, counterclockwise, as viewed from the light incident side, a retardation DELTAndRF2 of a second retardation film ranges from 310 nm to 415 nm, an angle formed by a delayed phase axis RF2 of the retardation film with respect to the normal direction X ranges from 130° to 180°, counterclockwise, as viewed from the light incident side, and an angle formed by an absorption axis Pol of a polarizing plate with respect to the normal direction X ranges from 80° to 130° or 170° to 220°, counterclockwise, as viewed from the light incident side.
申请公布号 US6219122(B1) 申请公布日期 2001.04.17
申请号 US19990400748 申请日期 1999.09.22
申请人 ALPS ELECTRIC CO., LTD. 发明人 UCHIDA TATSUO;OHIZUMI MITSUO;KANO MITSURU;HOSHINO TOSHIAKI
分类号 G02F1/1335;G02F1/13363;G02F1/139;(IPC1-7):G02F1/133 主分类号 G02F1/1335
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