Patent ID: 8982446
Filing Date: 2015-03-17
Classification: G02B,G02F,H01L

Abstract:
1. A reflective color display comprising: a substrate; a first conductor layer supported by the substrate; an array of pixel wells formed overlying the first conductive layer; a piezoelectric layer formed overlying the first conductor layer, the piezoelectric layer being segmented such that there is a piezoelectric segment in each pixel well; a second conductor layer overlying the piezoelectric layer, wherein an electric field created across any piezoelectric segment causes the piezoelectric segment to expand or contract under control of the electric field; a photonic crystal layer overlying the piezoelectric layer, the photonic crystal layer being segmented such that there is a photonic crystal segment overlying each piezoelectric segment in each pixel well; and a light source layer overlying the photonic crystal layer, the light source layer generating a multi-wavelength light emission impinging on each photonic crystal segment, wherein varying the electric field across each piezoelectric segment causes the photonic crystal segment above the associated piezoelectric segment to reflect a selected wavelength, whereby each pixel well can be controlled to reflect a selected color within the multi-wavelength light emission.