Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
August 2, 2011
Patent Application Number
12666450
Date Filed
June 24, 2008
Patent Primary Examiner
Patent abstract
A liquid-crystal display device comprising a liquid-crystal cell, a first polarizing element and a second polarizing element disposed on either side of the liquid-crystal cell respectively, a first retardation layer between the first polarizing element and the liquid-crystal cell, and a second retardation layer between the second polarizing element and the liquid-crystal cell, wherein a transmission axis of the first polarizing element is perpendicular to the slow axis of the first retardation layer; and a transmission axis of the second polarizing element is parallel to the slow axis of the second retardation layer; and the first retardation layer and the second retardation layer satisfy the formula (1) 0 nm<ΔRe1(548)−ΔRe2(548)≦50 nm.
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