Light emission reducing compounds for electronic devices
US11686968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Sep 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-filtering film for a screen of a device comprising a polymer substrate. A first absorbing compound combined with the polymer substrate, the first absorbing compound absorbing blue light in a blue notch band having a full-width half-maximum of not greater than about 50 nm. A second absorbing compound combined with the polymer substrate, the second absorbing compound absorbing green light in a green notch, wherein the first absorbing compound comprises an absorption that has a maximum absorbance peak between about 420 nm and about 445 nm, and wherein the second absorbing compound has a maximum absorbance peak between about 540 nm and 610 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.