Collimated light from a waveguide for a display backlight

doi:10.1364/OE.17.019714

Collimated light from a waveguide for a display backlight

2009-10-15

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DOI：10.1364/OE.17.019714

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We report light collimation from a point source without the space normally needed for fan-out. Rays emerge uniformly from all parts of the surface of a blunt wedge light-guide when a point source of light is placed at the thin end and the source's position determines ray direction in the manner of a lens. A lenticular array between this light-guide and a liquid crystal panel guides light from color light-emitting diodes to designated sub-pixels thereby removing the need for color filters and halving power consumption but we foresee much greater power economies and wider application. (C) 2009 Optical Society of America

Collimated light from a waveguide for a display backlight

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