Backlight unit and 3D image display apparatus
US10025160B2 · kind B2 · utility
63Cited by
0References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2016 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Jul 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2213/001
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Provided are a lighting system, a backlight unit and a 3D image display apparatus including the backlight unit. The backlight unit includes: a lighting system configured to selectively output collimated light and diverging light, a diffraction device, and a light guide plate configured to guide the collimated light and the diverging light from the lighting system to the diffraction device. An exit direction of the collimated light from the diffraction device depends on at least one of an angle of incidence of the collimated light and the wavelength of the collimated light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.