发明名称 Normally Black Mode STN Reflective Liquid Crystal Display having a single polariser and two Retarder Layers
摘要 <p>An object of the invention is to obtain achromatic display with high contrast and high lightness. A reflection type liquid crystal display device (1) of NB mode comprises a liquid crystal cell having an STN type liquid crystal layer (9); a first phase difference plate (4); a second phase difference plate (3); a polarizing plate (2), the first and second phase difference plates and polarizing plate being disposed on one surface of the liquid crystal cell in this order; and a reflecting layer (15) disposed in the liquid crystal cell, the reflecting layer forming the other surface of the liquid crystal cell. The liquid crystal layer (9) retardation DELTA nLC.dLC, the first phase difference plate (4) retardation DELTA n1.d1 and the second phase difference plate (3) retardation DELTA n2.d2 are selected from the ranges of 660 nm to 830 nm, 120 nm to 240 nm and 300 nm to 430 nm, respectively. A twist angle chi is selected from the range of 220 DEG to 260 DEG . Predetermined angles &thetas;, phi and psi are selected from the ranges of -130 DEG to -75 DEG , -20 DEG to -60 DEG and -15 DEG to -45 DEG , respectively. &lt;IMAGE&gt;</p>
申请公布号 EP1058149(A2) 申请公布日期 2000.12.06
申请号 EP20000111757 申请日期 2000.06.02
申请人 SHARP KABUSHIKI KAISHA 发明人 DOHI, ATSUSHI
分类号 G02F1/133;G02F1/1335;G02F1/13363;G02F1/139;(IPC1-7):G02F1/133 主分类号 G02F1/133
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