发明申请
- 专利标题: OPTICAL FILM CUTTING METHOD AND OPTICAL FILM
- 专利标题(中): 光学薄膜切割方法和光学薄膜
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申请号: US12438234申请日: 2007-08-20
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公开(公告)号: US20100116800A1公开(公告)日: 2010-05-13
- 发明人: Kanji NISHIDA , Atsushi HINO , Takaichi AMANO , Kazuo KITADA
- 申请人: Kanji NISHIDA , Atsushi HINO , Takaichi AMANO , Kazuo KITADA
- 申请人地址: JP Ibaraki-shi
- 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-shi
- 优先权: JP2006-226870 20060823
- 国际申请: PCT/JP2007/066134 WO 20070820
- 主分类号: B23K26/38
- IPC分类号: B23K26/38
摘要:
This invention relates to an optical film cutting method which includes cutting an optical film by irradiating the optical film with a laser beam under conditions that an energy per unit length is 0.12 to 0.167 J/mm and that a continuous irradiation time is 0.1 msec or less; as well as to an optical film that is cut by the cutting method and has a size of a raised part generated on a cutting surface thereof of 30 μm or less. According to the optical film cutting method of this invention, it is possible to maintain the raised part size on the optical film cutting surface as small as possible even in the case where the laser beam has characteristics of a gaussian beam, thereby enabling prevention of bonding defect and optical defect when the optical film is incorporated into various optical panels.
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