Patent ID: 9081251
Filing Date: 2015-07-14
Classification: G02F,G09G

Abstract:
1. A display device comprising: a substrate having a plurality of apertures therein, the substrate having a first effective dielectric constant; a dielectric material disposed within at least some of the apertures, the dielectric material having an adjustable second effective dielectric constant; an array of pixels, each pixel comprising an array of corresponding said apertures in the substrate, each aperture of the array having a maximum opening dimension less than a wavelength of light at least one frequency; a phase change material on top of the substrate configured and arranged to vary the second effective dielectric constant, thereby to vary light transmission characteristics of the array of pixels between transmission of the at least one frequency in the visible spectrum and transmission of substantially no frequency in the visible spectrum, wherein as a result of the varying, the array of pixels transmit the at least one frequency in the visible spectrum through the apertures via surface plasmon oscillation when the first effective dielectric constant is substantially same as the second effective dielectric constant, and the array of pixels reflect the at least one frequency in the visible spectrum by perturbing surface plasmon oscillation in the apertures when the first effective dielectric constant is substantially different from the second effective dielectric constant.