A filter pack is formed of a pleated filter section and a top edge band and a bottom edge band that form a frame. 1, provided that x and y are not simultaneously 0. The fused fiber bundle overlay includes an input side mounted adjacent to the display panel and optically aligned with the display pixels to receive image light, an emission side opposite the input side to emit the image light, and an array of fused fibers each extending from the input side to the emission side and each including an input end and an emission end.