发明名称 |
Optical article and method of making |
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.
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申请公布号 |
US7604381(B2) |
申请公布日期 |
2009.10.20 |
申请号 |
US20070735684 |
申请日期 |
2007.04.16 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
HEBRINK TIMOTHY J.;JONZA JAMES M.;BAY RANDY S.;CLARKE GRAHAM M.;LUCKING RAYMOND L.;YU TA-HUA;COLLIER TERRY O. |
分类号 |
F21V5/00;C09K19/00;G02B5/02 |
主分类号 |
F21V5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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