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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Jun 18, 2013
Grant Date -
May 19, 2011
app pub date -
Jun 8, 2009
filing date -
Jun 9, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
A game machine includes: a liquid crystal display including a liquid crystal panel and a back light unit disposed; and at least one reel which is disposed behind the back light unit and on which a plurality of symbols are disposed. The back light unit includes: a pair of transparent plates which are disposed to face each other, transparent electrodes being formed on corresponding predetermined areas the transparent plates; a polymer dispersed liquid crystal layer which is formed in a space between the transparent plates; and a light source module including a frame which is disposed behind the transparent plates, an area of the frame corresponding to the predetermined area being empty or transparent, and a planar light source or a plurality of light sources which is mounted to the frame to be disposed at an area corresponding to the predetermined area of the transparent plates.
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