Surface light source device having frame with light absorbing and reflecting portions
US9599768B2 · kind B2 · utility
0Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | May 9, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0083
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surface light source includes a light source facing an end face of a lightguide plate, a rectangular-shaped frame surrounding an outer peripheral surface of the lightguide plate, and a reflecting sheet disposed in on a lower surface of the frame. The frame includes an inside frame portion made of a white resin, and an outside frame portion made of a black resin, with the interface between the inside and outside frame portions being inclined with respect to the inside surface of the inside frame portion. The inside frame portion and the outside frame portion are integrally molded by a two-color molding method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.