Cellulose acylate film and method for producing same, retardation film, polarizing plate, and liquid crystal display device
US8623472B2 · kind B2 · utility
2Cited by
1References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2009 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Apr 26, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A cellulose acylate film is provided and has a surface where a first in-plane orientation in a portion from 0 to 3 μm in depth from the surface is lower than a second in-plane orientation in a portion from 3 μm to 10 μm in depth from the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.