Resin film, production method thereof, polarizing plate and liquid crystal display device
US7976914B2 · kind B2 · utility
4Cited by
1References
7Claims
0Family size
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Key dates
| Filing date | Jun 15, 2007 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | May 11, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/031
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A resin film has a photoelastic coefficient of from 0 to 30×10−8 cm2/N; and Re satisfying the following formulae (1) to (4):20 nm<Re(548)<300 nm Formula (1):0.5<Re(446)/Re(548)<1 Formula (2):1.0<Re(629)/Re(548)<2.0 Formula (3):0.1%≦[{Re(548) at 25° C., 10% RH−Re(548) at 25° C., 80% RH}/Re(548) at 25° C., 60% RH]≦20%, Formula (4):wherein Re(λ) represents an in-plane retardation at a wavelength of λ.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.