Lens for backlight of display device and backlight of display device including the same
US9740042B2 · kind B2 · utility
0Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Aug 22, 2017 |
| Priority date | — |
| Expiry date | Nov 4, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133607
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens for a backlight of a display device, includes a lower surface, a groove portion defined recessed from the lower surface and comprising a curved surface; and an upper surface comprising an outer edge and a center, in a plan view, of which a distance from the lower surface decreases in a direction from the outer edge to the center.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.