Back cover for backlight source, backlight source, and display apparatus
US9285517B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 12, 2013 |
| Grant date | Mar 15, 2016 |
| Priority date | — |
| Expiry date | Jan 16, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0096
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a back cover for a backlight source, a backlight source and a display apparatus. The back cover includes at least one reflection surface arranged on one surface of the back cover. The reflection surface includes a first reflection region and a second reflection region, each of which includes a plurality of concave arc-shaped regions. The concave arc-shaped regions of the first reflection region have curvature increasing toward the second reflection region, and the concave arc-shaped regions of the second reflection region have curvatures decreasing in a direction away from the first reflection region. The concave arc-shaped region having a maximum curvature in the first reflection region is connected with the concave arc-shaped region having a maximum curvature in the second reflection region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.