| 发明名称 |
Polyimide film from pyromellitic dianhydride and a bis (4-aminophenoxy) aromatic compound as an alignment layer for liquid crystal displays |
| 摘要 |
A polyimide alignment film based on pyromellitic dianhydride and a bis(4-aminophenoxy) aromatic compound, such as 1,3-bis(4-aminophenoxy)benzene or 1,4-bis(4-aminophenoxy)benzene, providing low tilt angles of from 1 to 2 degrees when used in liquid crystal displays.
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| 申请公布号 |
US5856432(A) |
申请公布日期 |
1999.01.05 |
| 申请号 |
US19970974814 |
申请日期 |
1997.11.20 |
| 申请人 |
E. I. DUPONT DE NEMOURS AND COMPANY;MERCK PATENT GMBH |
发明人 |
AUMAN, BRIAN CARL;BOHM, EDGAR |
| 分类号 |
C08G73/10;C08J5/18;C09K19/42;C09K19/46;G02F1/1337;(IPC1-7):C08G73/10;G02F1/133;G02F1/13;C09K19/00 |
主分类号 |
C08G73/10 |
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