Patent ID: 8223425

Claim:
A method for creating colors in the visible spectrum using a physical modulation plasmonic display device, the method comprising: providing a plasmonic device with an electrically conductive bottom electrode, a first dielectric layer overlying the bottom electrode, made from a piezoelectric material having an index of expansion responsive to an electric field, an electrically conductive top electrode overlying the second dielectric layer, and a first plasmonic layer including a plurality of discrete plasmonic particles, interposed between the top and bottom electrodes and in contact with the first dielectric layer; accepting a full-spectrum visible light incident to the top electrode; accepting a first voltage potential between the top and bottom electrodes, generating a first electric field; creating a first index of expansion in the first dielectric layer in response to the first electric field; in response to the first index of expansion, creating a first average spacing between particles in the first plasmonic layer; and, supplying a first primary color in response to the first refractive index and the first average spacing, where a primary color exhibits a single wavelength peak with a spectral full width at half magnitudes (FWHMs) in the visible spectrum of light.