Nano-media information carrier based on pixelated nano-structures combined with an intensity control layer
US9460665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2014 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Nov 22, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/008
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display media including a pixel layer containing subpixels for different optical bands composed of nano-scale structures and an intensity control layer that can pattern the luminance of the subpixels. The display media includes a substrate layer, a sub-wavelength substrate supported by the substrate layer and including subpixels, each subpixel defined by at least one sub-wavelength structure having at least one specific optical property including a specific optical band, at least two of the subpixels having a different specific optical property, and an intensity control layer to individually control an amount of luminance of each individual subpixel in a pattern. Some of the subpixels may have colors that define a color space, while some other subpixels may have an invisible radiation spectrum band. For example, the display media can allow both overt information (color images) and covert information to be embedded together with high density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.