Backlight module including privacy structure with triangular prism structure and display apparatus including the same
US12158641B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 21, 2021 |
| Grant date | Dec 3, 2024 |
| Priority date | — |
| Expiry date | Apr 21, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133626
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backlight module, including: a surface light source; a first light guide plate laminated with the surface light source in a thickness direction, wherein the first light guide plate is on a light-exiting side of the surface light source, and a side of the first light guide plate proximal to the surface light source comprises a plurality of first networks; and a first light source on a side surface of the first light guide plate, in which an orthographic projection of the first light source onto a plane, where a light-exiting surface of the surface light source is located, does not overlap with that of the first light guide plate onto the plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.