发明授权
- 专利标题： Method and device to improve backlight uniformity
- 专利标题（中）： 提高背光均匀性的方法和装置
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申请号： US11780314申请日： 2007-07-19
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公开(公告)号： US07445367B2公开(公告)日： 2008-11-04
- 发明人: James Robinson , Marc Drader , Michael Purdy
- 申请人： James Robinson , Marc Drader , Michael Purdy
- 申请人地址： CA Waterloo, Ontario
- 专利权人： Research in Motion Limited
- 当前专利权人： Research in Motion Limited
- 当前专利权人地址： CA Waterloo, Ontario
- 代理机构： McCarthy Tétrault LLP
- 主分类号： F21V7/04
- IPC分类号： F21V7/04
摘要：
A hot spot filter for a light guide is created by taking an image of the light output pattern of an illuminated light guide. The hot spot filter may be a film, a layer, or an additional liquid crystal display dedicated to attenuating bright spots from the light guide. The hot spot filter may be incorporated into the image display by adjusting the grey scale of individual pixels to provide sufficient compensation.
公开/授权文献
- US20070291507A1 METHOD AND DEVICE TO IMPROVE BACKLIGHT UNIFORMITY 公开/授权日：2007-12-20
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