Phosphor blends and backlight sources for liquid crystal displays
US6809781B2 · kind B2 · utility
332Cited by
26References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2002 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B33/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A phosphor composition that comprises at least one phosphor emitting in each of the blue, green, and red regions of the visible spectrum is disposed adjacent to a backlight source of a color liquid crystal display. The phosphor composition emits strongly in the wavelength ranges of color filters used in such display. The backlight source includes either a semiconductor light-emitting diode or an organic light-emitting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.