Liu Chun-Wei, Lee Chi-Hung, Lin Shih-Chieh
Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu, Taiwan.
Opt Express. 2011 Jun 6;19(12):11299-311. doi: 10.1364/OE.19.011299.
This research uses a roll-to-roll based ultraviolet (UV) resin process to make sub-wavelength gratings for display applications. Based on the rigorous coupling wave analysis (RCWA), we analyze the relationship between the first order transmission/reflection efficiency and the pitch of the grating for various shapes as rays pass through the sub-wavelength gratings, patterned with a backlight. The objective is to turn the R/G/B (620 nm, 520 nm, and 450 nm) incident rays into uniformly and normally output white light with high illuminance from the surface of a light guide.
本研究采用基于卷对卷的紫外（UV）树脂工艺来制造用于显示应用的亚波长光栅。基于严格耦合波分析（RCWA），当光线穿过带有背光源图案化的亚波长光栅时，我们分析了不同形状的光栅的一阶透射/反射效率与光栅间距之间的关系。目标是将红/绿/蓝（620纳米、520纳米和450纳米）入射光线从导光板表面转化为具有高照度的均匀且垂直输出的白光。
