发明授权
- 专利标题: Method of producing polarizing plate, and liquid crystal display comprising the polarizing plate
- 专利标题(中): 偏光板的制造方法以及包含偏光板的液晶显示装置
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申请号: US10921189申请日: 2004-08-19
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公开(公告)号: US06954240B2公开(公告)日: 2005-10-11
- 发明人: Eiji Hamamoto , Youichirou Sugino , Kazuki Tsuchimoto , Senri Kondou , Seiichi Kusumoto
- 申请人: Eiji Hamamoto , Youichirou Sugino , Kazuki Tsuchimoto , Senri Kondou , Seiichi Kusumoto
- 申请人地址: JP Ibaraki
- 专利权人: Nitto Denko Corporation
- 当前专利权人: Nitto Denko Corporation
- 当前专利权人地址: JP Ibaraki
- 代理机构: Westerman, Hattori, Daniels & Adrian LLP
- 主分类号: G02B5/30
- IPC分类号: G02B5/30 ; G02F1/1335 ; G02F1/1333
摘要:
A polarizing plate produced according to the present invention includes a polarizing film and a protective layer bonded to a surface of the polarizing film, where the protective layer has no irregularities like record grooves caused by stretching of the polarizing film, so that the polarizing plate with an improved appearance provides clear images even when reflected light is applied. Such a polarizing plate is produced by laminating a protective layer on at least one surface of a polarizer while limiting moisture content of the polarizer to a range from 5% to 30%. A value for the moisture content is obtained by a calculation based on an equation of moisture content (%)=[(A−B)/B]×100, when A denotes weight of the polarizer before bonding and B denotes weight of the polarizer after being kept in a dryer of 120° C. for seven hours.
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