Unilateral backlight, multiview display, and method employing slanted diffraction gratings
US11143810B2 · kind B2 · utility
13Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2019 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Sep 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0035
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A unilateral backlight and a unilateral multiview display employ an array of unilateral diffractive elements configured to provide directional light beams having a unilateral direction. A unilateral diffractive element of the unilateral diffractive element array comprises a slanted diffraction grating configured to provide a directional light beam by diffractive scattering of light guided in a light guide. The unilateral multiview display further includes light valves configured to modulate a plurality of directional light beams as multiview image having the unilateral direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.