公开(公告)号：US20070047261A1

公开(公告)日：2007-03-01

申请号：US11212166

申请日：2005-08-27

申请人： David Thompson ,  Craig Schardt ,  Brian Ostlie ,  Scott Kienitz ,  John Wheatley

发明人： David Thompson ,  Craig Schardt ,  Brian Ostlie ,  Scott Kienitz ,  John Wheatley

IPC分类号： F21V7/04

CPC分类号： G02B6/0028 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133613

摘要： Direct-lit backlights and associated methods and components are disclosed in which a transflector that partially transmits and partially reflects incident light is shaped to form at least one concave structure facing a back reflector of the backlight. This provides at least one recycling cavity therebetween, the at least one recycling cavity substantially filling the output area of the backlight. At least one light source is disposed behind the output area to inject light into each cavity, and can be positioned in the recycling cavity or behind an aperture in the back reflector. The cavities are preferably shallow and wide, having a width-to-depth ratio of at least 5 or 10, and can provide uniform brightness and color at the output area with sparsely distributed light sources and in a thin profile backlight.

摘要翻译： 公开了直射式背光灯和相关方法和组件，其中部分透射并部分反射入射光的透射反射器被成形为形成面向背光源的后反射器的至少一个凹形结构。 这在其间提供至少一个回收腔，所述至少一个回收腔基本上填充背光源的输出区域。 至少一个光源设置在输出区域的后面以将光注入每个空腔中，并且可以被定位在后部反射器中的再循环腔或后面的孔中。 这些空腔优选地是浅的和宽的，具有至少5或10的宽度 - 深度比，并且可以在具有稀疏分布的光源的输出区域和薄型背光源中提供均匀的亮度和颜色。

公开(公告)号：US20070047228A1

公开(公告)日：2007-03-01

申请号：US11466787

申请日：2006-08-24

申请人： D. Thompson ,  Craig Schardt ,  Brian Ostlie ,  Scott Kienitz ,  John Wheatley

发明人： D. Thompson ,  Craig Schardt ,  Brian Ostlie ,  Scott Kienitz ,  John Wheatley

IPC分类号： F21V1/00

CPC分类号： G02B6/0021 ,  G02B6/0018 ,  G02F1/133603 ,  G02F1/133611

摘要： Direct-lit backlights and associated methods and components are disclosed In one embodiment, a method of forming a direct-lit backlight having an output area includes providing a transflector that partially transmits and partially reflects incident light. The method further includes forming one or more recycling cavities that substantially fill the output area of the backlight, where forming the one or more recycling cavities includes forming the transflector into at least one concave structure that faces a back reflector of the backlight. The method further includes positioning at least one light source behind the output area to inject light into the one or more recycling cavities.

摘要翻译： 在一个实施例中，形成具有输出区域的直射背光的方法包括提供部分透射并部分地反射入射光的透射反射器。 该方法还包括形成基本上填充背光源的输出区域的一个或多个再循环空腔，其中形成一个或多个再循环空腔包括将透射反射器形成面向背光源的后反射器的至少一个凹形结构。 该方法还包括将至少一个光源定位在输出区域后面以将光注入到一个或多个再循环腔中。