Direct-lit backlight having light recycling cavity with concave transflector
    1.
    发明授权
    Direct-lit backlight having light recycling cavity with concave transflector 有权
    具有凹透镜的光回收腔的直射背光

    公开(公告)号:US07815355B2

    公开(公告)日:2010-10-19

    申请号:US11212166

    申请日:2005-08-27

    IPC分类号: F21V8/00

    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。

    DIRECT-LIT BACKLIGHT HAVING LIGHT RECYCLING CAVITY WITH CONCAVE TRANSFLECTOR
    3.
    发明申请
    DIRECT-LIT BACKLIGHT HAVING LIGHT RECYCLING CAVITY WITH CONCAVE TRANSFLECTOR 审中-公开
    具有光转换器的光回收孔的直射背光

    公开(公告)号:US20110025947A1

    公开(公告)日:2011-02-03

    申请号:US12905937

    申请日:2010-10-15

    IPC分类号: G02F1/1335 G09F13/04

    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。

    Edge-lit backlight having light recycling cavity with concave transflector
    9.
    发明授权
    Edge-lit backlight having light recycling cavity with concave transflector 有权
    具有凹透镜的光回收腔的边缘照明背光

    公开(公告)号:US07537374B2

    公开(公告)日:2009-05-26

    申请号:US11466628

    申请日:2006-08-23

    IPC分类号: F21S13/14

    摘要: An edge-lit backlight having a light recycling cavity with concave transflector is disclosed. The edge-lit backlight has an output area and includes a back reflector facing the output area of the backlight. The backlight further includes a transflector that partially transmits and partially reflects incident light, the transflector being shaped to form a concave structure facing the back reflector to provide one or more recycling cavities therebetween, where the one or more recycling cavities substantially fill the output area of the backlight. The backlight further includes at least one light source positioned adjacent a first edge of the backlight. The at least one light source is operable to inject light into the one or more recycling cavities through an input surface of the one or more recycling cavities, where the input surface is substantially orthogonal to the output area, and where the at least one concave structure converges with the back reflector in a direction distal from the input surface.

    摘要翻译: 公开了具有凹透镜的光回收腔的边缘照明背光。 边缘照明背光源具有输出区域,并且包括面向背光源的输出区域的后反射器。 该背光还包括半透射反射器,其部分地透射并部分地反射入射光,透射反射器被成形为形成面向后反射器的凹形结构,以在其间提供一个或多个再循环腔,其中一个或多个再循环腔基本上填充 背光。 背光还包括邻近背光源的第一边缘定位的至少一个光源。 所述至少一个光源可操作以通过所述一个或多个再循环腔的输入表面将光注入所述一个或多个再循环空腔中,其中所述输入表面基本上与所述输出区域正交,并且其中所述至少一个凹形结构 与背反射器在远离输入表面的方向会聚。