Transmission decorative film and method of manufacturing transmission decorative film
US10690827B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2019 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Apr 22, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/343
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transmission decorative film includes a circular polarization plate and a circular polarization reflection layer disposed on the circular polarization plate. The circular polarization reflection layer includes at least one or more first cholesteric liquid crystalline layers that reflect any one of left circularly polarized light or right circularly polarized light. The first cholesteric liquid crystalline layer includes two or more reflection regions having different selective reflection wavelengths. The circular polarization plate transmits circularly polarized light having a revolution direction opposite to a revolution direction of the circularly polarized light reflected by the first cholesteric liquid crystalline layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.