Backlight device and transmission type display apparatus
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United States of America Patent
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Dec 21, 2010
Issued Date -
N/A
app pub date -
Feb 19, 2008
filing date -
Feb 19, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A backlight device includes: a first prism sheet which has a triangular prism row on a major surface thereof; a first light source which emits light having directivity in a slanted direction with respect to a normal line direction of a light outgoing surface of the first prism sheet in opposite side to the triangular prism row side so as to enter into the triangular prism row of the first prism sheet; and a second light source which emits light having directivity in the normal line direction of the light outgoing surface of the first prism sheet so as to enter into the triangular prism row of the first prism sheet.
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Cited Art Landscape
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