Backlight and displaying/imaging apparatus
US8287169B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2010 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Apr 20, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a backlight capable of suppressing loss of light from an invisible light source and a displaying/imaging apparatus using the same. The backlight includes: a light guide plate having a light emitting face and a rear face opposed to the light emitting face; a visible light source disposed on a side face of the light guide plate; an invisible light source disposed on a side face of the light guide plate; a first reflection film disposed on the rear face side of the light guide plate, reflecting light from the visible light source, and transmitting light from the invisible light source; and a second reflection film disposed on the rear face side of the light guide plate and reflecting light from at least the invisible light source out of the visible light source and the invisible light source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.