Method of producing polarizing film, polarizing film and image display device using the same
US7221510B2 · kind B2 · utility
3Cited by
3References
49Claims
0Family size
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Key dates
| Filing date | Apr 23, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Apr 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for producing a polarizing film including a step of stretching a raw film, wherein the ratio (L/W) of stretching distance (L) to width of initial raw film (W) is from 0.5 to 30.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.