中国物理B ›› 2021, Vol. 30 ›› Issue (5): 54207-054207.doi: 10.1088/1674-1056/abd471

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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. 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
  • 收稿日期:2020-11-19 修回日期:2020-12-11 接受日期:2020-12-17 出版日期:2021-05-14 发布日期:2021-05-14
  • 通讯作者: Yubao Sun E-mail:sun_yubao@163.com
  • 基金资助:
    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).

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. 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
  • Received:2020-11-19 Revised:2020-12-11 Accepted:2020-12-17 Online:2021-05-14 Published:2021-05-14
  • Contact: Yubao Sun E-mail:sun_yubao@163.com
  • Supported by:
    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).

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

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.

Key words: narrow band filter, wide color gamut, display

中图分类号:  (Display devices, liquid-crystal devices)

  • 42.79.Kr
42.79.Ci (Filters, zone plates, and polarizers) 42.15.Eq (Optical system design)