Polarizing plate and liquid crystal display
US7839569B2 · kind B2 · utility
1Cited by
1References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2005 |
| Grant date | Nov 23, 2010 |
| Priority date | — |
| Expiry date | Apr 28, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/40
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizing plate comprising a polarizer comprising polyvinyl alcohol and a protective film on at least one side of the polarizer, the polarizer having a difference of 5.0% or smaller between maximum and minimum of an in-plane phase difference Rpva thereof in any area thereof measuring 39 cm wide and 65 cm long.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.