High contrast display panel and a method of making a high contrast display panel

Abstract

An optical display panel which provides improved viewing contrast is disclosed. The optical panel includes a plurality of stacked optical waveguides, wherein each waveguide has an inlet face and an outlet face at opposing ends of each waveguide, and wherein each waveguide is formed of a core in contact with at least one cladding layer, wherein the at least one cladding layer includes at least one black layer, and at least one redirector connected to the inlet face of each of at least two waveguides. The at least one black layer has a first thickness, and the core has a second thickness, and the first thickness is preferably a multiple of the second thickness. In a preferred embodiment, the first thickness is at least two times greater than the second thickness. In a second preferred embodiment, the first thickness is at least four times greater than the second thickness.

Dependencies are inferred from the claim text.