Directional backlight unit and 3D image display apparatus having the same
US10180530B2 · kind B2 · utility
2Cited by
12References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2016 |
| Grant date | Jan 15, 2019 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2005/1804
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A directional backlight unit and a three-dimensional image display apparatus including the directional backlight unit are provided. The directional backlight unit includes a light source, a light guide plate guiding light emitted from the light source, and a diffraction device including a plurality of sections. Each of the sections includes a grating pattern set configured to adjust the direction of light incident from the light guide plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.