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Patent Searching and Data


Title:
液晶表示装置
Document Type and Number:
Japanese Patent JP5181673
Kind Code:
B2
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)

Inventors:
Koji Tasaka
Application Number:
JP2007533200A
Publication Date:
April 10, 2013
Filing Date:
August 24, 2006
Export Citation:
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Assignee:
Konica Minolta Advanced Layer Co., Ltd.
International Classes:
G02F1/1335; G02B5/30
Domestic Patent References:
JPH08240716A1996-09-17
JP2004271846A2004-09-30
JP2003012859A2003-01-15
JPH08240716A1996-09-17
Attorney, Agent or Firm:
Koichi Washida
Kazuto Iinuma