Dye combinations for multiple bandpass filters for video displays
US6344710B2 · kind B2 · utility
13Cited by
28References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 2001 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jan 9, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/898
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bandpass filter containing specific combinations of the dyes to yield filters which are adapted to selectively transmit predetermined primary color wavelengths of an electromagnetic spectrum as well as selectively absorb wavelengths other than the predetermined primary color wavelengths. The multiple bandpass filters are employed to improve the images on CRT screens and plasma display panels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.