Protective cover sheet comprising a UV-absorbing layer for a polarizer plate and method of making the same
US7622185B2 · kind B2 · utility
7Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | May 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31935
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a protective cover sheet comprising a low birefringence protective polymer film and a layer that promotes adhesion to poly(vinyl alcohol), the protective cover sheet comprising at least one functional layer containing a UV-absorbing polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.