发明名称 |
MULTI-DOMAIN LIQUID-CRYSTAL DISPLAY DEVICE |
摘要 |
The invention relates to a multi-domain liquid-crystal display device comprising two substantially substrates which are provided with an electrode layer and an orientation layer. A layer of a nematically ordered liquid-crystalline material comprising a chiral dopant is sandwiched between the substrates. The layer is structured in such a manner that the pixels of the layer are composed of at least two types of sub-pixels in which the twist senses of the liquid-crystalline material are mutually opposite. This construction in accordance with the invention is achieved by differentiating the composition of the chiral dopant in the different types of sub-pixels. This is attained by employing isomerizable chiral dopants and/or diffusion techniques in combination with local exposure of the liquid-crystal layer. The invention also provides methods of manufacturing such multi-domain liquid-crystal display devices. The multi-domain liquid-crystal display devices in accordance with the invention are easier to manufacture than display devices in which the orientation layers must be structured.
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申请公布号 |
WO9857223(A1) |
申请公布日期 |
1998.12.17 |
申请号 |
WO1998IB00582 |
申请日期 |
1998.04.20 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS AB |
发明人 |
VAN DE WITTE, PETER |
分类号 |
G02F1/137;C09K19/02;G02F1/13;G02F1/1337;G09F9/30;G09F9/35;(IPC1-7):G02F1/133 |
主分类号 |
G02F1/137 |
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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