Narrow-band high-transmittance birefringent filter and its application in wide color gamut display  

作　　者：Chi Zhang Rui Niu Wenjuan Li Xiaoshuai Li Hongmei Ma Yubao Sun 张弛;牛瑞;李文娟;李小帅;马红梅;孙玉宝(School of Electronic and Information Engineering,Hebei University of Technology,Tianjin 300401,China;Department of Applied Physics,Hebei University of Technology,Tianjin 300401,China)

机构地区：[1]School of Electronic and Information Engineering,Hebei University of Technology,Tianjin 300401,China [2]Department of Applied Physics,Hebei University of Technology,Tianjin 300401,China

出　　处：《Chinese Physics B》2021年第5期401-405,共5页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.61475042,11304074,and 11274088);the Natural Science Foundation of Hebei Province,China(Grant Nos.A2015202320 and GCC2014048).

摘　　要：We propose a narrow-band birefringent filter and its application in wide color gamut.The birefringent filter consists of five phase retarders and two polarizers,and it has both narrow band and high transmittance.In the experiment,we fabricate the birefringent filter using quartz phase retarders and polarizers,and apply it in serval different displays.The color gamuts of displays are enhanced more than 30%NTSC(National Television System Committee),and the widest color gamuts that have been obtained are 126%NTSC in liquid crystal displays and 138%NTSC in organic light-emitting devices.Moreover,the deep blue light in spectrum of display can be reduced using the birefringent filter.The birefringent filter can be an efficient element to achieve wide color gamut display.

关 键 词：narrow band filter wide color gamut DISPLAY 

分 类 号：TN873[电子电信—信息与通信工程]