Invention Grant
US09383492B2 Elliptical polarization plate 有权
椭圆偏振板

Elliptical polarization plate
Abstract:
To provide an elliptical polarization plate excellent in suppression of coloration and light leakage in display. An elliptical polarization plate having a transparent protective film pasted to one surface of a polarizer and an optically anisotropic film pasted to the other surface thereof, wherein, when measured under condition of incident polarization in the film normal direction from the side of the transparent protective film, the visibility corrected single body transmittance is 43.0% or more, the visibility corrected polarization degree is 95.0% or more, the single body hue value a* is −2.0 to 1.0 and the single body hue value b* is −1.0 to 5.0, and the optically anisotropic film satisfies the formulae (1), (2) and (3): Re(450)/Re(550)≦1.00  (1) 1.00≦Re(650)/Re(550)  (2) 100
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