Polarizer, optical film using the same, and image display device using the same
US8698981B2 · kind B2 · utility
3Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2008 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Apr 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizer that can be used for forming a liquid crystal display or an electroluminescent display with less display irregularities and excellent display characteristics is provided. The polarizer contains a dichroic material in a matrix, and its in-plane retardation at a measurement wavelength providing no absorption is in a range of 950 to 1350 nm. The measurement wavelength is preferably a wavelength that the dichroic material provides no absorption, and it is 1000 nm, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.