Polarizing plate and display device
US7550182B2 · kind B2 · utility
13Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2006 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Sep 20, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/057
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarization plate comprising a polarizer and polarizing plate protective films A and B provided on both surfaces of the polarizer, wherein (i) a thickness of each of the polarizing plate protective films A and B is 30 to 60 μm; (ii) in-plate retardation value Ro of the polarizing plate protective film B is 20 to 100 nm; (iii) retardation value Rt in the thickness direction of the polarizing plate protective film B is 10 to 300 nm; (iv) a thickness of the polarizing plate is 80 to 160 μm; (v) a stiffness of the polarizing plate of the polarizing plate under a condition of 23° C. and 55% RH is 20 to 80 g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.