Light valve device, infrared display apparatus, dedicated spectacles and system
US9829743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2016 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Oct 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention discloses a light valve device, an infrared display apparatus, dedicated spectacles and a system, to realize with naked eyes, only a black picture plane without any information can be seen on a display screen, but with spectacles, effective image information can be seen on the display screen; as a result, the image display is more concealed. The light valve device comprises a first liquid crystal cell and a second liquid crystal cell that are oppositely disposed to each other; the first liquid crystal cell and the second liquid crystal cell are both formed by two substrates that are oppositely arranged, and alignment films with parallel or antiparallel alignment directions are formed on the inside the two substrates respectively; cholesteric liquid crystals with opposite arrangement and rotation directions are filled in the first liquid crystal cell and the second liquid crystal cell respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.