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1/1/2009 - 12/31/2009
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1/1/2008 - 12/31/2008
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{us-gaap_StatementOperatingActivitiesSegmentAxis} : Display Technologies [Member]
1/1/2010 - 12/31/2010
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{us-gaap_StatementOperatingActivitiesSegmentAxis} : Display Technologies [Member]
1/1/2010 - 12/31/2010
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1/1/2009 - 12/31/2009
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{us-gaap_StatementOperatingActivitiesSegmentAxis} : Display Technologies [Member]
1/1/2008 - 12/31/2008
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