公开(公告)号：US07815355B2

公开(公告)日：2010-10-19

申请号：US11212166

申请日：2005-08-27

Applicant: David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

Inventor： David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

IPC: F21V8/00

CPC classification number: G02B6/0028 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133613

Abstract: 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.

Abstract translation: 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：US20110025947A1

公开(公告)日：2011-02-03

申请号：US12905937

申请日：2010-10-15

Applicant: David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

Inventor： David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

IPC: G02F1/1335 ,  G09F13/04

CPC classification number: G02B6/0028 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133613

Abstract: 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.

Abstract translation: 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：US09857518B2

公开(公告)日：2018-01-02

申请号：US12905937

申请日：2010-10-15

Applicant: David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

Inventor： David Scott Thompson ,  Craig R. Schardt ,  Brian W. Ostlie ,  Scott J. Kienitz ,  John A. Wheatley

IPC: F21V8/00 ,  G02F1/1335

CPC classification number: G02B6/0028 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133613

Abstract: 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.