公开(公告)号：US20160116663A1

公开(公告)日：2016-04-28

申请号：US14521162

申请日：2014-10-22

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Qi Hong ,  Shin-Tson Wu ,  Kuo-Chang Lee

IPC: F21V8/00 ,  F21V9/16

CPC classification number: G02B6/0053

Abstract: The disclosure provides a display backlight unit and its light down conversion film. The light down conversion film may include a quantum-dot layer sandwiched between input substrate and an exit substrate. First and second refractive asymmetric micro-prisms are disposed on two opposite input and first exit surfaces of the input substrate, respectively. On the input surface of the input substrate, multiple arrays of the asymmetric refractive asymmetric micro-prisms preserve the large off-axis angle of incident light with first wavelength. On the first exit surface of the input substrate, multiple arrays of the refractive asymmetric micro-prisms increase the reflectance of the large incident angle light. A second exit surface of the exit substrate includes refractive symmetric micro-prisms. The refractive asymmetric micro-prisms of the input substrate and the refractive asymmetric micro-prisms of the exit substrate have rounded tips and valleys for enhancing refraction of the first light and the second light.

Abstract translation: 本公开提供了一种显示器背光单元及其降光转换膜。 降光转换膜可以包括夹在输入基板和出射基板之间的量子点层。 第一和第二折射不对称微棱镜分别设置在输入基板的两个相对的输入和第一出射表面上。 在输入基板的输入表面上，不对称折射非对称微棱镜的多个阵列保留具有第一波长的入射光的大的离轴角。 在输入基板的第一出射表面上，折射不对称微棱镜的多个阵列增加大入射角光的反射率。 出射衬底的第二出射表面包括折射对称的微棱镜。 输入基板的折射不对称微棱镜和出射基板的折射不对称微棱镜具有用于增强第一光和第二光的折射的圆形尖端和谷部。

公开(公告)号：US09513426B2

公开(公告)日：2016-12-06

申请号：US14521162

申请日：2014-10-22

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Qi Hong ,  Shin-Tson Wu ,  Kuo-Chang Lee

IPC: F21V7/04 ,  F21V8/00

CPC classification number: G02B6/0053

Abstract: The disclosure provides a display backlight unit and its light down conversion film. The light down conversion film may include a quantum-dot layer sandwiched between input substrate and an exit substrate. First and second refractive asymmetric micro-prisms are disposed on two opposite input and first exit surfaces of the input substrate, respectively. On the input surface of the input substrate, multiple arrays of the asymmetric refractive asymmetric micro-prisms preserve the large off-axis angle of incident light with first wavelength. On the first exit surface of the input substrate, multiple arrays of the refractive asymmetric micro-prisms increase the reflectance of the large incident angle light. A second exit surface of the exit substrate includes refractive symmetric micro-prisms. The refractive asymmetric micro-prisms of the input substrate and the refractive asymmetric micro-prisms of the exit substrate have rounded tips and valleys for enhancing refraction of the first light and the second light.

Abstract translation: 本公开提供了一种显示器背光单元及其降光转换膜。 降光转换膜可以包括夹在输入基板和出射基板之间的量子点层。 第一和第二折射不对称微棱镜分别设置在输入基板的两个相对的输入和第一出射表面上。 在输入基板的输入表面上，不对称折射非对称微棱镜的多个阵列保留具有第一波长的入射光的大的离轴角。 在输入基板的第一出射表面上，折射不对称微棱镜的多个阵列增加大入射角光的反射率。 出射衬底的第二出射表面包括折射对称的微棱镜。 输入基板的折射不对称微棱镜和出射基板的折射不对称微棱镜具有用于增强第一光和第二光的折射的圆形尖端和谷部。