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BACKLIGHT AND DISPLAY

  • US 20100061087A1
  • Filed: 03/04/2008
  • Published: 03/11/2010
  • Est. Priority Date: 03/05/2007
  • Status: Active Grant
First Claim
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1. A display backlight comprising a plurality of discrete light sources spaced from a diffuser, the sources being arranged as sets, each of at least some of which comprises a plurality of the sources, cooperating with a mirror structure which surrounds the set to form a region, the regions being arranged as a two-dimensional array which substantially tessellates the area of the backlight, each mirror structure comprising a plurality of mirror segments, of curved concave cross-section in a plane substantially perpendicular to the diffuser, extending from around the sources of the set towards the diffuser, the edges of adjacent mirror segments of adjacent regions meeting at a meeting line with all of the meeting lines being at the diffuser or between the diffuser and the sources.

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