Light source, backlight module and display apparatus
US9995867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | May 7, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/0021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a light source, a backlight module and a display apparatus. The light source includes: a light emitting diode chip; and a fluorescent powder layer arranged to face towards the light emitting diode chip and configured to receive a first light emitted from the light emitting diode chip and to emit a second light with a wavelength different from that of the first light, wherein the light emitting diode chip and the fluorescent powder layer are moveable with respect to each other such that quantity of fluorescent powder in the fluorescent powder layer excited by the light emitted from the light emitting diode chip increases or decreases. In the above solution, the light emitting diode chip and the fluorescent powder layer are movable with respect to each other, so as to adjust color temperature of backlight conveniently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.