Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 2, 2008
0Patent Application Number
110074250
Date Filed
December 8, 2004
0Patent Primary Examiner
Patent abstract
An in-plane-switching-mode (IPS) LCD device includes a TFT substrate and a CF substrate sandwiching therebetween an LC layer, and a pair of polarizing films sandwiching therebetween the substrates and the LC layer. Each polarizing film has a polarization layer and a protective layer An optical compensation layer having a birefringence is disposed between the light-emitting-side polarizing film and the CF substrate. The optical compensation layer has an in-plane retardation of N1 satisfying the following relationship:83.050−0.810×D1≦N1≦−228.090−0.74D1 in the range of 0<D1≦80 μm, wherein D1 is the thickness of the protective layer of the light-incident-side polarizing film.
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