NANO-MEDIA INFORMATION CARRIER BASED ON PIXELATED NANO-STRUCTURES COMBINED WITH AN INTENSITY CONTROL LAYER

摘要

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.