Light diffusing reflector for electro-optical displays and process for producing thereof

摘要

A light-diffusing reflector for electro-optical displays, especially displays which are based on the principle of a nematic liquid crystal rotating cell, wherein the reflector is formed of a metal foil with a reflecting surface having a first surface structure determined by furrow-shaped depressions, i.e. groover disposed in a preferential direction, and wherein a second groove structure formed as secondary groover in at least two different preferential directions which do not coincide with the preferential direction of the furrow-shaped groover of the first groove structure is embossed by pressing or rolling secondary groover into the metal foil such that the reflective surface is at least approximately optically isotropic.