发明名称 |
METHOD FOR LIQUID CRYSTAL ALIGNMENT |
摘要 |
A method for liquid crystal alignment by applying a polarized ultraviolet light or electron beams onto a thin film of a polymer provided on a substrate in a certain direction relative to the substrate to align liquid crystals by using the substrate without rubbing, wherein the thin film comprises a polyimide resin comprising repeating units represented by general formula (I) (wherein R<1> represents a tetravalent organic group having an alicyclic structure and R<2> represents a divalent organic group) and prepared by the dehydration and ring closure of a polyimide precursor having a reduced viscosity of 0.05 to 3.0 dl/g (in N-methyl-2-pyrrolidone at 30 DEG C in a concentration of 0.5 g/dl). |
申请公布号 |
WO9733191(A1) |
申请公布日期 |
1997.09.12 |
申请号 |
WO1997JP00603 |
申请日期 |
1997.02.28 |
申请人 |
NISSAN CHEMICAL INDUSTRIES, LTD.;ENDOU, HIDEYUKI;FUKURO, HIROYOSHI |
发明人 |
ENDOU, HIDEYUKI;FUKURO, HIROYOSHI |
分类号 |
G02F1/1337;(IPC1-7):G02F1/133 |
主分类号 |
G02F1/1337 |
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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