发明授权
- 专利标题: Reflective polarizers having extended red band edge for controlled off axis color
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申请号: US690527申请日: 1996-07-31
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公开(公告)号: US5808794A公开(公告)日: 1998-09-15
- 发明人: Michael F. Weber , Brian D. Cull , Kevin M. Hoffman , Andrew J. Ouderkirk
- 申请人: Michael F. Weber , Brian D. Cull , Kevin M. Hoffman , Andrew J. Ouderkirk
- 专利权人: 3M Innovative Properties Co
- 当前专利权人: 3M Innovative Properties Co
- 主分类号: G02B5/30
- IPC分类号: G02B5/30 ; G02F1/1335 ; G02B27/28
摘要:
Reflective polarizers, which transmit one polarization and reflect the other polarization, have an extended red band edge in the off-axis transmission spectrum to control off axis color (OAC) hue. To control the OAC hue, the red band edge of the off-axis transmission spectrum, or OAC spectrum, is shifted beyond the boundary for red light, or to at least 600 nm. Even more preferably, the OAC spectrum is extended further into the red than any red emission peak of an associated lamp providing light into a system in which the reflective polarizer is used. The concept applies equally well to any type of reflective polarizer, such as multilayer reflective polarizers, cholesteric reflective polarizers, and the like. The resulting reflective polarizers are very useful for many different applications, such as liquid crystal displays.
公开/授权文献
- US4613301A Ignition device 公开/授权日:1986-09-23
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