发明名称 |
Process for inducing alignment of liquid crystals and liquid crystal optical elements |
摘要 |
A process for inducing alignment of a liquid crystal medium adjacent to a surface of an optical alignment layer comprising: exposing at least one optical alignment layer to polarized light; the polarized light having a wavelength within the absorption band of said optical alignment layer; wherein the exposed alignment layer induces alignment of the liquid crystal medium at an angle + and - theta with respect to the direction of the polarization of the incident light beam and along the surface of the optical alignment layer; and applying a liquid crystal medium to the optical alignment layer, wherein the optical alignment layer is a polyimide comprising an an amine component having a 2-substituted 1,4-benzenediamine wherein the 2-substituent X1 is an electron withdrawing group having a positive sigma . Also claimed is a liquid crystal display element made by the process.
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申请公布号 |
US5958293(A) |
申请公布日期 |
1999.09.28 |
申请号 |
US19980080639 |
申请日期 |
1998.05.18 |
申请人 |
ELSICON INC. |
发明人 |
GIBBONS, WAYNE M.;SHANNON, PAUL JOSEPH;ZHENG, HANXING |
分类号 |
C08G73/10;G02F1/1337;(IPC1-7):C09K19/56;C09K19/00;B32B27/00;G02F1/133 |
主分类号 |
C08G73/10 |
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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