High durability circular polarizer for use with emissive displays
US6549335B1 · kind B1 · utility
160Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2000 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Jul 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high durability circular polarizer includes an unprotected K-type polarizer, such as a KE polarizer sheet, and a quarter-wavelength retarder. An optical system using the circular polarizer further includes an emissive display module such as an organic light emitting diode or a plasma display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.