Light polarizing film
US7339736B2 · kind B2 · utility
20Cited by
15References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2006 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Mar 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light polarizing film and method of making same includes a linear polarizer having a first surface and a second surface and having a polarization direction, an optical retarder comprising a simultaneously biaxially oriented polypropylene film disposed adjacent to the first surface of the linear polarizer and having an axis oriented at an angle with respect to the polarization direction, and an adhesive layer disposed between the first surface of the linear polarizer and the optical retarder and having a minimum adhesion strength of about 25 grams per inch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.