Display device
US11016325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2019 |
| Grant date | May 25, 2021 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display device including a display layer to provide a first color light, a color control layer on the grayscale display layer and including a transmission filter for transmitting the first color light and a color conversion filter for converting the first color light to another color light, and an optical control layer on the color control layer. The optical control layer includes a metal layer having an absorption coefficient of 3 or more and 3.5 or less in a wavelength range of 530 nm to 570 nm and a first inorganic sub-layer having an absorption coefficient of 0.3 or more and 1 or less in a wavelength range of 530 nm to 570 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.