发明名称 POLARIZING PLATE, METHOD OF MANUFACTURING THE SAME, OPTICAL FILM, AND IMAGE DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a polarizing plate achieving satisfactory durability and uniformity (evenness) in display. <P>SOLUTION: The polarizing plate includes transparent protective films sticked on both faces of a polyvinyl alcohol polarizer through an adhesive layer, respectively. The transparent protective film on one face includes (meth)acrylic resin containing glutarimide unit and (meth)acrylic acid ester unit, its inplane phase difference is less than 40 nm, and its phase difference in the direction of thickness is less than 80 nm. The transparent protective film on the other face contains cellulose ester. A phase difference plate satisfies the following relationship: nx>ny>nz (wherein, the direction in which inplane refractive index becomes the maximum is X-axis, the direction being vertical to the X-axis is Y-axis, the direction of thickness is Z-axis, and refractive indexes in respective axial directions are nx, ny, and nz). <P>COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009139744(A) 申请公布日期 2009.06.25
申请号 JP20070317424 申请日期 2007.12.07
申请人 NITTO DENKO CORP 发明人 KATO MEGUMI;SAITO TAKESHI;HANI TSUTOMU;KAWASAKI MOTOKO
分类号 G02B5/30;B32B27/30;C09J11/04;C09J129/04;G02F1/1335 主分类号 G02B5/30
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