Nanostructure array diffractive optics for RGB and CMYK color displays
US11198314B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 2014 |
| Grant date | Dec 14, 2021 |
| Priority date | — |
| Expiry date | May 12, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J37/3174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An RGB and/or CMYK full color optical display device comprising multiple nanostructure arrays configured to provide display of a wide range of colors corresponding to multiple pixels or sub-regions of an image is disclosed, where the multiple nanostructure arrays may be formed on a single substrate layer. An optical display device includes a substrate having a surface, and a first pixel of a color image comprising first and second sub-pixels according to at least one of an additive and subtractive color scheme, where the first sub-pixel comprises a first optical sub-wavelength nanostructure array formed on or in the surface of the substrate, and where the second sub-pixel comprises a second optical sub-wavelength nanostructure array formed on or in the surface of the substrate. A method of manufacturing an RGB and/or CMYK full color optical display comprising multiple nanostructure arrays arranged as sub-pixels according to a color scheme is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.