Liquid crystal alignment agent
US5969055A · kind A · utility
23Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 15, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jan 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133723
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A liquid crystal alignment agent containing at least two kinds of polymers selected from the group consisting of polyamic acids and imidized polymers and having a structure obtained by dehydration and ring closure of polyamic acid. In the at least two kinds of polymers contained in the liquid crystal alignment agent, the polymer of higher imidization degree has a smaller surface free energy. The liquid crystal alignment agent gives a liquid crystal display device having less stuck image and high pretilt angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.