λ/4 PLATE, MANUFACTURING METHOD THEREOF, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND STEREOSCOPIC IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a λ/4 plate which is excellent in surface processing suitability and polarizer durability and has excellent optical characteristics such as retardation property and reverse wavelength dispersibility and a manufacturing method thereof, and to provide a polarizing plat...

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Bibliographische Detailangaben
Hauptverfasser: REN RIEKO, MAEJIMA KATSUMI
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a λ/4 plate which is excellent in surface processing suitability and polarizer durability and has excellent optical characteristics such as retardation property and reverse wavelength dispersibility and a manufacturing method thereof, and to provide a polarizing plate, a liquid crystal display device, and a stereoscopic image display device having the λ/4 plate.SOLUTION: A λ/4 plate contains a compound represented by a specific general formula and a cellulose ester resin. The λ/4 plate is extended in a direction crossing the longitudinal direction and its in-plane retardation Ro (550), measured with a measurement wavelength 550 nm under the temperature 23°C and the relative humidity 55%RH, falls within the range of 100-160 nm and its orientation angle θ falls within the range of 40-50°.