Retardation film, manufacturing method thereof, polarizing plate and liquid crystal display apparatus
US7466377B2 · kind B2 · utility
9Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jun 11, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13363
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A film bonded to a polarizer of a polarizing plate, has a surface A and a surface B opposite to the surface A; and a thickness of 10 μm to 70 μm; wherein a refractive index difference between the surface A and the surface B is 5×10−4 to 5×10−3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.