Light emission reducing compounds for electronic devices
US10901125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Sep 15, 2038 |
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.