METHOD FOR PRODUCING LAMINATED FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND OPTICAL FILM
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United States of America Patent
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Jun 16, 2014
filing date -
Dec 26, 2011
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Abstract
A laminated film having a retardation layer A and a layer B that are formed through solvent co-casting is provided. The layer A has a thickness of 5 to 30 μm. The layer B has a higher tensile modulus compared to the layer A. An interlayer peeling force between the layer A and the layer B is 0.05 to 5 N/cm. The laminated film overcomes the deterioration of handling property generally occurring with the reduction of film thickness in solvent casting method.
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