Color spatial light modulator and method of manufacture

Abstract

A semiconductor device comprises a plurality of groups of colored cells controllable by electronic circuitry. Each group of colored cells absorb or reflect specified wavelengths of visible light. The electronic signals control the pathways on which each individual cell reflects incident light. A first process for manufacturing such a color spatial light modulator ("SLM") includes aligning a dye-bearing substrate over the spatial light modulator and causing specified portions of the dye to sublimate off of the substrate and condense onto particular cell elements of the spatial light modulator. A second process for producing a colored spatial light modulator places an electrostatic charge in a dye cloud and introduces the charged cloud to the SLM. The dye migrates to those selected cells containing an opposite electrical charge.

Dependencies are inferred from the claim text.