发明授权
- 专利标题: Optical laminate
- 专利标题(中): 光学层压板
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申请号: US11225179申请日: 2005-09-14
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公开(公告)号: US07695782B2公开(公告)日: 2010-04-13
- 发明人: Ryu Takeko , Akira Kawamura , Atsushi Higo
- 申请人: Ryu Takeko , Akira Kawamura , Atsushi Higo
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP.
- 优先权: JP2004-271525 20040917; JP2004-271526 20040917
- 主分类号: G02F1/1335
- IPC分类号: G02F1/1335
摘要:
An optical laminate comprising an anti-reflection film 1, polarizing film 2, adhesive layer 3, glass cell for liquid crystal display 4, adhesive layer 5 and polarizing film 6 laminated sequentially, wherein the ratio (B/A) of the maximum value B of the loss tangent of the adhesive layer 5 to the maximum value A of the loss tangent of the adhesive layer 3 is 1.1 or more. The maximum value of the loss tangent means the maximum value of loss modulus (E″) storage modulus (E′) (=tan δ), each measured by heating the adhesive layer in a temperature range of −70° C. to 200° C. at a temperature rising rate of 4° C./min and a frequency of 1 Hz.
公开/授权文献
- US20060062938A1 Optical laminate 公开/授权日:2006-03-23
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