Patent ID: 6152580
Filing Date: 2000-11-28
Classification: G02F,G09F,G09G

Abstract:
A tiled, flat-panel display having visually imperceptible seams, comprising:a) a plurality of co-planar, transmissive display tiles comprising a back plate mask and arranged adjacent one another with seams therebetween, said tiles having a thickness and comprising pixel active areas;b) a light source disposed behind said plurality of display tiles; andc) light collimating means proximate said light source and intermediate said light source and said plurality of display tiles and distinctly separate therefrom, said light collimating means selectively directing light from said light source to said pixel active areas and blocking light from said seams, said selectively directed light having a predetermined angular relationship to said pixel active areas, comprising a critical angle determined by at least one of the factors:thickness of said plurality of display tiles; dimensions of said back plate mask; and a predetermined distance between said light collimating means and said plurality of display tiles, and wherein said light collimating means comprises a lattice having a thickness defined by a cell height ""H"" and having a plurality of open, visually transmissive cells of width ""W"".