Patent ID: 7911428

Claim:
A display comprising: at least one color interferometric modulator configured to selectively reflect ambient light having a characteristic color, said modulator having a spectral response characterized by a first spectral peak having a spectral width, wherein said first spectral peak corresponds to said characteristic color; and at least one color filter having a spectral response characterized by a second spectral peak having a spectral width, said filter configured to transmit at least a portion of incident ambient light to said modulator and to transmit at least a portion of said selectively reflected ambient light to output light characterized by a third spectral peak, wherein said third spectral peak has a spectral width that is narrower than the spectral width of the first spectral peak and wherein the spectral width of said first spectral peak is the range of wavelengths of said first spectral peak at the full width at half maximum of intensity of said selectively reflected light, the spectral width of said second spectral peak is the range of wavelengths of said second spectral peak at the full width at half maximum of intensity of said spectral response of said color filter and the spectral width of the third spectral peak is the range of wavelengths of said third spectral peak at the full width at half maximum of intensity of said output light.