Active flexible liquid crystal optical devices
US10935790B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2019 |
| Grant date | Mar 2, 2021 |
| Priority date | — |
| Expiry date | Feb 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device and a head-mounted display (HMD) are provided. The device comprises a first flexible electrode and a second flexible electrode configured to provide a driving voltage to the device; a birefringent material layer coupled to the first flexible electrode and the second flexible electrode, and structurally patterned to provide at least one predetermined optical function of the device; and a first photo-alignment (PAM) layer and a second PAM layer sandwiching the birefringent material layer. A structured pattern of the birefringent material layer is based on a manipulation of optic axis of birefringent material molecules in the birefringent material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.