Directional backlight unit, three-dimensional (3D) image display apparatus, and 3D image displaying method
US10114225B2 · kind B2 · utility
4Cited by
3References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Oct 30, 2018 |
| Priority date | — |
| Expiry date | Oct 7, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/356
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A directional backlight unit, a three-dimensional (3D) image display apparatus, and a 3D image displaying method are provided. The directional backlight unit includes a light guide plate having an emission surface on which a plurality of grating elements including first and second groups of grating elements are provided. The plurality of grating elements are arranged such that light beams emitted from the first and second groups of grating elements commonly propagate through a plurality of pixel points and respectively form first and second groups of view points of which corresponding regions do not overlap with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.