Patent ID: 8717660

Claim:
A display device having a surface normal, wherein at least a portion of the incident light is incident from an incidence direction relative to the surface normal, and wherein a direction of specular reflection is associated with the incidence direction, the display device comprising: a plurality of reflective display elements configured to modulate light incident on the display device; and a first diffuser layer disposed over the plurality of reflective display elements, the first diffuser layer configured to redistribute the incident light such that the light reflected from the display elements is redistributed into a ring shaped region between a first circular region having a first angle θ 1 with respect to the direction of specular reflection and a second circular region having a second angle θ 2 with respect to the direction of specular reflection, the second angle θ 2 being larger than the first angle θ 1 , and the first angle θ 1 greater than 0 degrees.