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Polarizing plate with optical compensation layer, method of producing the same, and liquid crystal panel, liquid crystal display, and image display including the same

  • US 7,557,883 B2
  • Filed: 07/12/2007
  • Issued: 07/07/2009
  • Est. Priority Date: 07/12/2006
  • Status: Active Grant
First Claim
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1. A polarizing plate with optical compensation layers, comprising:

  • a polarizer;

    a first optical compensation layer; and

    a second optical compensation layer,the polarizer, the first optical compensation layer, and the second optical compensation layer being stacked together in this order,wherein the first optical compensation layer is formed of a liquid crystal compound and has a relationship of nx>

    ny=nz and an in-plane retardation Re1 in a range of 100 to 170 nm,the second optical compensation layer has a relationship of nx=ny>

    nz and a thickness-direction retardation Rth2 in a range of 30 to 400 nm, and,an angle formed between an absorption axis of the polarizer and a slow axis of the first optical compensation layer is in a range of 25 to 65 degrees in a clockwise direction (−

    ) or in a counterclockwise direction (+) with respect to the absorption axis of the polarizer.

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