Patent ID: 7952792

Claim:
A reflective display having a viewing side, the display successively comprising, from the viewing side: a transparent substrate; and a reflective layer, characterized in that the substrate comprises: a plurality of funnel-shaped protrusions, each protrusion comprising a base end having a base surface area facing the substrate, a top end having a top surface area facing away from the substrate towards the reflective layer, and one or more side walls connecting the base end and the top end, the base surface area being larger than the top surface area, and the side walls being arranged to reflect light that is transmitted through the protrusion, wherein the reflective layer comprises a medium having scattering particles dispersed therein and an index of refraction (n f ) being less than 1.1 n s , and wherein a ratio of the base surface area and the top surface area is between 0.5 n f 2 and 1.5 n f 2 , where n s is the index of refraction of the substrate.