| 摘要 |
Provided is a very thin elliptically polarizing plate having broadband and wide viewing angle, a simple method of producing the same, and an image display apparatus using the elliptically polarizing plate. An elliptically polarizing plate of the present invention includes a polarizer, a protective layer formed on one side of the polarizer, a first birefringent layer serving as a lambda/2 plate, and a second birefringent layer serving as a lambda/4 plate in the stated order. In the plate, an absorption axis of the polarizer and a slow axis of the first birefringent layer form an angle alpha of one of 10° to 20° and -10° to -20°, and the absorption axis of the polarizer and a slow axis of the second birefringent layer form an angle beta of one of 65° to 85° and 5° to 25°.
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