Liquid crystal lens and liquid crystal spectacles
US11067833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2018 |
| Grant date | Jul 20, 2021 |
| Priority date | — |
| Expiry date | Oct 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/44
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to the technical field of liquid crystal display, and specifically discloses a liquid crystal lens and liquid crystal spectacles. The liquid crystal lens includes a first substrate and a second substrate arranged oppositely, a liquid crystal layer between the first substrate and the second substrate, and an electrode unit including a first electrode and a second electrode. At least one of the first electrode and the second electrode includes an annular electrode. The first electrode is located on a side of the first substrate facing the second substrate, and the second electrode is located on a side of the second substrate facing the first substrate. Under an effect of the first electrode and the second electrode, liquid crystals in the liquid crystal layer further form a Fresnel lens having an adjustable focal distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.