Directional backlight, 3D image display apparatus having the same, and method of manufacturing the same
US10228506B2 · kind B2 · utility
2Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2016 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Mar 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B30/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A directional backlight and a 3D image display apparatus including the directional backlight are provided. The directional backlight includes a light guide plate guiding light emitted from a light source; a diffractive device configured to adjust the direction of light exiting the light guide plate; and an aperture adjusting layer including a plurality of apertures. The aperture adjusting layer may adjust the optical output efficiency of the diffractive device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.