发明名称 |
Liquid crystal display device in which the heights of the reflection plate projections are less than half the thicknesses of the two aligning films together |
摘要 |
A liquid crystal display device is disclosed. The display device uses a phase transition type guest-host mode. The device is made with a pair of substrates (31, 45). One substrate is a transparent substrate and having a transparent electrode (47) and an aligning film (48) formed in this order. The other substrate is located opposite to the transparent substrate and has an insulating film (34), a reflection plate (38), and an aligning film (44) formed in this order. The reflection plate has projections (42a,b) at the surface. The aligning films are subjected to a vertical aligning treatment relative to the respective substrates. A liquid crystal composition is disposed between the aligning films, and has a nematic liquid crystal, a chiral additive and a two-tone pigment. A helical pitch (Po) of the liquid crystal composition and the cell thickness (d) of the liquid crystal display device satisfy the relation of 1.5<d/Po>/=4.
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申请公布号 |
US5576860(A) |
申请公布日期 |
1996.11.19 |
申请号 |
US19930111147 |
申请日期 |
1993.08.17 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
NAKAMURA, KOZO;MITSUI, SEIICHI;KIMURA, NAOFUMI |
分类号 |
G02F1/1335;G02F1/1337;G02F1/1362;G02F1/137;(IPC1-7):G02F1/133;G02F1/133;G02F1/13;C09K19/60 |
主分类号 |
G02F1/1335 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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