Light emission reducing compounds for electronic devices
US10495795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2019 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Mar 21, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2200/1634
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Double-notch filters for electronic devices are provided that filter light from both the blue spectrum as well as the red spectrum in narrow wavelength bands, or “notches.” A double-notch filter can, using input light from a conventional LED-backlit LCD display, output light that can be measured as substantially satisfying criteria for a D65 white point. In some examples, a double-notch filter can output light that can be measured as nearly satisfying criteria for a D65 white point, to within +/−500 Kelvin. In some examples, a double-notch filter can output light that can be measured as nearly satisfying criteria for a D65 white point, to within +/−1000 Kelvin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.