Display with backlight
US9459492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2010 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jun 4, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133614
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display includes a backlight (40). In addition, the display includes for each of at least one wavelength band, a plurality of layers placed above the backlight (40). The plurality of layers includes an absorption layer (13,23,33), a luminescent layer (14,24,34) and a reflective layer (15,25,35). The absorption layer (12,22,32) is capable of absorbing light in a wavelength band while being substantially transparent to light in other wavelength bands. The luminescent layer (14,24,34) is capable, in response to light from the backlight (40), of emitting light within the wavelength band. The reflective layer (15,25,35) is adapted to reflect light in the wavelength band while being substantially transparent to light in other wavelength bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.