Patent ID: 9256115
Filing Date: 2016-02-09
CPC Classification: B32B,G02B,G03B

Claim Text:
1. A projection screen, comprising: a transparent substrate having a first side and a second side; a first optically clear adhesive (“OCA”) layer disposed across the first side of the transparent substrate; a first two-dimensional (“2D”) matrix of clear beads partially embedded into the first OCA layer; and a dark layer disposed across the first OCA layer filling in exposed gaps between the clear beads to block and absorb light incident upon the exposed gaps between the clear beads, wherein a first portion of each of the clear beads is embedded into the first OCA layer and a second portion, opposite the first portion, protrudes through the dark layer, wherein the clear beads form optical paths through the dark layer, wherein the clear beads form optical paths through the dark layer; a second OCA layer disposed across the dark layer and the first 2D matrix of clear beads, the second OCA layer conforming around the second portion of each of the clear beads protruding through the dark layer; and a laminated screen structure disposed across the second OCA layer opposite the dark layer, the laminated screen structure including a second 2D matrix of clear beads sandwiched between a third OCA layer and a fourth OCA.