发明授权
- 专利标题: Optical article and method of making
- 专利标题(中): 光学文章和制作方法
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申请号: US11735684申请日: 2007-04-16
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公开(公告)号: US07604381B2公开(公告)日: 2009-10-20
- 发明人: Timothy J. Hebrink , James M. Jonza , Randy S. Bay , Graham M. Clarke , Raymond L. Lucking , Ta-Hua Yu , Terry O. Collier
- 申请人: Timothy J. Hebrink , James M. Jonza , Randy S. Bay , Graham M. Clarke , Raymond L. Lucking , Ta-Hua Yu , Terry O. Collier
- 申请人地址: US MN St. Paul
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: US MN St. Paul
- 代理商 Elizabeth A. Gallo
- 主分类号: F21V5/00
- IPC分类号: F21V5/00 ; C09K19/00 ; G02B5/02
摘要:
Disclosed herein is an optical article having a top layer with a structured surface that collimates light, a core layer secured to the top layer opposite the structured surface, and a bottom layer secured to the core layer opposite the top layer. Either the top layer or the core layer includes a first extrudable polymer having a flexural modulus of greater than 2.5 GPa, and the other layer includes a second extrudable polymer having a flexural modulus of 2.5 GPa or less, an impact strength of greater than about 40 J/m, and tensile elongation at break of greater than about 5%. The bottom layer includes a third extrudable polymer. The bottom layer of the optical article may be structured to diffuse light. One or two optical articles may be secured to an optical film such as a polarizer film. Methods and display devices are also disclosed herein.
公开/授权文献
- US20080252980A1 OPTICAL ARTICLE AND METHOD OF MAKING 公开/授权日:2008-10-16