Narrow-band high-transmittance birefringent filter and its application in wide color gamut display
Chi Zhang(张弛)1, Rui Niu(牛瑞)1, Wenjuan Li(李文娟)1, Xiaoshuai Li(李小帅)1, Hongmei Ma(马红梅)2, and Yubao Sun(孙玉宝)1,2,†
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
Abstract 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.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61475042, 11304074, and 11274088) and the Natural Science Foundation of Hebei Province, China (Grant Nos. A2015202320 and GCC2014048).
Corresponding Authors:
Yubao Sun
E-mail: sun_yubao@163.com
Cite this article:
Chi Zhang(张弛), Rui Niu(牛瑞), Wenjuan Li(李文娟), Xiaoshuai Li(李小帅), Hongmei Ma(马红梅), and Yubao Sun(孙玉宝) Narrow-band high-transmittance birefringent filter and its application in wide color gamut display 2021 Chin. Phys. B 30 054207
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