Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Koji Tasaka0
Date of Patent
April 12, 2011
0Patent Application Number
115096490
Date Filed
August 25, 2006
0Patent Primary Examiner
Patent abstract
A liquid crystal display comprising: a brightness enhancing film, polarizing plate (A), a liquid crystal cell, polarizing plate (B) laminated in that order, Wherein (i) polarizing plate (A) has a polarizing plate protective film facing the brightness enhancing film; (ii) the polarizing plate protective film is a cellulose ester film; (iii) an in-plane retardation value Ro(550) of the of the cellulose ester film represented by Formula (I) is 0 to 5 nm; and (iv) a retardation value in a thickness direction Rt(550) of the of the cellulose ester film represented by Formula (II) is −15 to 15 nm,Ro(550)=(Nx−Ny)×d Formula (I)Rt(550)={(Nx+Ny)/2−Nz}×d. Formula (II)
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