Analytic design of light extraction array for light guide plate based on extended sources

被引：15

作者：

Chen, Enguo ^{[1
]}

Lin, Shuyan ^{[1
]}

Jiang, Zongzhao ^{[1
]}

Guo, Qian ^{[1
]}

Xu, Sheng ^{[1
]}

Ye, Yun ^{[1
]}

Yan, Qun Frank ^{[1
]}

Guo, Tailiang ^{[1
]}

机构：

[1] Fuzhou Univ, Coll Phys & Informat Engn, Natl & Local United Engn Lab Flat Panel Display T, Fuzhou 350116, Peoples R China

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 24期

关键词：

EDGE-LIT BACKLIGHT; PATTERN DESIGN; BOTTOM SURFACE; NEURAL-NETWORK; MICRO-PRISM; LCD; OPTIMIZATION; MODULE; ENHANCEMENT; UNIFORMITY;

D O I：

10.1364/OE.27.034907

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Light extraction array, comprised of millions of discrete scattering dots randomly distributed on edge-lit light guide plates (LGPs), determines both the light efficiency and spatial uniformity of liquid crystal displays. However, it is hard to define by a specific mathematical expression. Here, we propose a novel analytic design for light extraction array based on geometrical optical principles. This design method consists of three successive procedures evolving from point- and line-source approximations to extended surface-source computation. Three procedures are demonstrated via both simulation and experiment, and the key factors influencing the performance of the light extraction array are also discussed. Our approach with high accuracy and reduced complexity will have broad prospect for illumination design. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：34907 / 34920

页数：14

共 49 条

[1] LED backlight: design, fabrication, and testing [J].