Efficient polarization converter for projection displays

被引：12
作者：
Yip, WC [1 ]
Huang, HC [1 ]
Kwok, HS [1 ]
机构：
[1] HONG KONG UNIV SCI & TECHNOL,DEPT ELECT ENGN,KOWLOON,HONG KONG
来源：
APPLIED OPTICS | 1997年 / 36卷 / 25期
关键词：
twisted nematic liquid crystal; projection displays; achromatic polarization rotator;
D O I：
10.1364/AO.36.006453
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In the waveguiding limit, a twisted nematic liquid crystal cell behaves as an achromatic polarization rotator. We propose and demonstrate the application of such a polarization rotator to convert unpolarized light into linearly polarized light with almost 100% efficiency. This polarization converter has a 2:1 aspect ratio, which is close to the 16:9 ratio for modern televisions. It can be used therefore in a projection display with polarization-dependent light valves such as a liquid crystal light valve. Both transmittive and reflective light valves can be used. The temperature dependence of the achromatic polarization rotator is also studied. (C) 1997 Optical Society of America.
引用
收藏
页码：6453 / 6457
页数：5
相关论文
共 21 条
  • [1] LARGE APERTURE POLARIZED-LIGHT SOURCE AND NOVEL LIQUID-CRYSTAL DISPLAY OPERATING MODES
    BELAYEV, SV
    SCHADT, M
    BARNIK, MI
    FUNFSCHILLING, J
    MALIMONEKO, NV
    SCHMITT, K
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (04): : L634 - L637
  • [2] Broer D. J., 1995, Proceedings of Fifteenth International Display Research Conference. Asia Display '95, P735
  • [3] Chandrasekhar S., 1992, LIQUID CRYSTALS
  • [4] DEVAAN A, 1993, P 13 INT DISPL RES C, P253
  • [5] Fukuda I., 1995, Journal of the Society for Information Display, V3, P83, DOI 10.1889/1.1984944
  • [6] Gunjima T., 1995, Proceedings of Fifteenth International Display Research Conference. Asia Display '95, P731
  • [7] Huang H. C., 1995, Proceedings of Fifteenth International Display Research Conference. Asia Display '95, P481
  • [8] Parameter space representation of liquid crystal display operating modes
    Kwok, HS
    [J]. JOURNAL OF APPLIED PHYSICS, 1996, 80 (07) : 3687 - 3693
  • [9] Visible broadband, wide-angle, thin-film multilayer polarizing beam splitter
    Li, L
    Dobrowolski, JA
    [J]. APPLIED OPTICS, 1996, 35 (13): : 2221 - 2225
  • [10] MONCHART J, 1989, APPL OPTICS, V28, P2847
123