Patent ID: 8634151

Claim:
A reflective display device comprising: a first absorption layer to be modulated between being strongly and weakly absorbing of light within a first specified wavelength band and to absorb light weakly in a second specified wavelength band and a third specified wavelength band; a second absorption layer arranged beneath the first absorption layer, wherein said second absorption layer is to be modulated between being strongly and weakly absorbing of light within the second specified wavelength band and to absorb light weakly within the third specified wavelength band; a third absorption layer arranged beneath the second absorption layer, wherein said third absorption layer is to be modulated between being strongly and weakly absorbing of light within at least the third specified wavelength band; and at least one reflector arranged between two of the first, second, and third absorption layers, wherein the at least one reflector is to reflect light strongly within one of the specified wavelength bands assigned to the absorption layers above the at least one reflector, wherein at least one of the absorption layers beneath the at least one reflector is to more than weakly absorb light within the wavelength band that the at least one reflector arranged above the at least one absorption layer is to strongly reflect, wherein the at least one reflector is formed of a plurality of peaks that are spaced apart from each other at predetermined periodicities and have predetermined heights, and wherein the periodicities and the heights are selected to provide a predetermined scattering of light.