Polyimide angularity enhancement layer
US6074709A · kind A · utility
10Cited by
7References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | May 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31721
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer comprising a plurality of structural units having pendant fluorene groups, said angularity enhancement layer being disposed on at least one surface of said liquid crystal cell. A liquid crystal display can comprise an angularity enhancement construction of the invention which comprises a polyimide layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.