Light emission reducing compounds for electronic devices
US11947209B2 · kind B2 · utility
0Cited by
103References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2020 |
| Grant date | Apr 2, 2024 |
| Priority date | — |
| Expiry date | Feb 26, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light-absorbing, neutral density filter for an electronic device display. More specifically, a light-absorbing, neutral density filter applied as a shield, protective film, or protective coating layer for an electronic device display that blocks ultraviolet light, high energy visible light, and at least a portion of blue light. The neutral density filter comprises a polymer substrate and an absorbing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.