Surface light source device and frame used therein
US8864358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | May 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133317
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a surface light source device frame, an amount of light that leaks from an outer peripheral surface of the frame can be decreased while a decrease in luminance is suppressed in an emission surface. The frame includes a rectangular frame main body made of a black resin and an auxiliary member made of a white resin. In inner peripheral surfaces of both lateral sides of the frame main body, fitting portions are provided in an end portion on a side farther away from the light source in the frame main body in order to fit the leg portions. The auxiliary member is attached to the inner peripheral surface on the side farther away from the light source in the frame main body while the leg portions are fitted in the fitting portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.