Optical compensation films with mesogen groups for liquid crystal display
US9096719B2 · kind B2 · utility
4Cited by
15References
45Claims
0Family size
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Key dates
| Filing date | Mar 29, 2007 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Feb 7, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/13
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Optical compensation films (positive C-plate) with mesogen anisotropic subunits (OASUs) that have high positive birefringence throughout the wavelength range 400 nm<λ<800 nm are provided. The optical compensation films may be processed by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. Such optical compensation films are suitable for use as a positive C-plate in LCDs, particularly IPS-LCDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.