Light guide plate having diffused light printed dot pattern
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United States of America Patent
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Apr 7, 2015
Grant Date -
May 3, 2012
app pub date -
Jun 24, 2009
filing date -
Jun 24, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
The lighting apparatus 10 includes a light guide plate 11 made of a transparent material and having a pair of faces 12a, 12b opposing each other and an end face adjoining the faces, a silkscreen-printed dot pattern 13 used to diffuse light, provided only on the face 12a of the light guide plate 11 and formed with a special ink, and an LED light source 20 disposed so as to face the end face of the light guide plate 11. The face 12a of the light guide plate 11 provided with the silkscreen-printed pattern 13 serves, as it is, as a light-emitting surface.
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