Back light unit and liquid crystal display device and game machine including the same
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United States of America Patent
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Mar 5, 2013
Grant Date -
Apr 14, 2011
app pub date -
Jun 8, 2009
filing date -
Jun 9, 2008
priority date (Note) -
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Abstract
A game machine including: a liquid crystal display including a liquid crystal panel and a back light unit; and at least one reel which is disposed behind the back light unit. The back light unit for a liquid crystal display includes: a pair of light guide plates which are disposed to face each other, transparent electrodes being formed on corresponding predetermined areas of surfaces facing each other of the light guide plates; a polymer dispersed liquid crystal layer which is formed in a space between the light guide plates and is formed by polymer dispersed liquid crystal; and a plurality of light sources respectively disposed at edges of the light guide plates.
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