Optical device including optically anisotropic molecules having intermediate pretilt angles
US11624864B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2021 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Mar 22, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/62
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element is provided. The optical element includes an optical film including a birefringent material having a chirality. Optically anisotropic molecules of the birefringent material disposed adjacent a first surface of the optical film are configured with a first pretilt angle in a range of greater than 10° and less than 80°, or in a range of greater than −80° and less than −10°. Optically anisotropic molecules of the birefringent material disposed adjacent a second surface of the optical film opposing the first surface are configured with a second pretilt angle in the range of greater than 10° and less than 80°, or in the range of greater than −80° and less than −10°.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.