发明申请
- 专利标题： Prismatic Film Backlight
- 专利标题（中）： 棱镜胶片背光
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申请号： US12444906申请日： 2007-10-10
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公开(公告)号： US20100014312A1公开(公告)日： 2010-01-21
- 发明人: Adrian Travis
- 申请人： Adrian Travis
- 申请人地址： US WA Redmond
- 专利权人： Microsoft Corporation
- 当前专利权人： Microsoft Corporation
- 当前专利权人地址： US WA Redmond
- 优先权： GB0620014.1 20061010
- 国际申请： PCT/GB07/03848 WO 20071010
- 主分类号： F21V7/22
- IPC分类号： F21V7/22 ; G02B27/14
摘要：
A selectively light-reflecting sheet (30) includes a prismatic film (1) with parallel prisms (10) on its face, a low-index film (3) on the prisms and a layer (5) on the low-index film, this layer having a substantially flat surface. This results in a low effective index, which means that light incident at steeper angles on the prismatic film (1) will pass through it. This “leaky” effect can be used in conjunction with a reflector sheet (20) in a tapered-waveguide arrangement to construct a lightweight backlight.
公开/授权文献
- US08016475B2 Prismatic film backlight 公开/授权日：2011-09-13
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