Design Optimization of Reflective Polarizers for LCD Backlight Recycling

    Authors

    Y. Li; T. X. Wu;S. T. Wu

    Abbreviated Journal Title

    J. Disp. Technol.

    Keywords

    Birefringent; liquid crystal display (LCD); multilayer; polymer; reflective polarizer; LIQUID-CRYSTAL DISPLAY; OPTICS; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    We systematically study and optimize the design of multilayer birefringent reflective polarizers for recycling the backlight of liquid crystal displays. Factors affecting the Bragg reflection are analyzed in detail, including number of layers for establishing Bragg reflection, refractive index difference, effective refractive index, and thickness ratio. Different methods for achieving broadband reflection are investigated, so that the reflective polarizer could cover the entire visible wavelengths and a large incident angle. In addition, the effects of material dispersion on the device design are analyzed.

    Journal Title

    Journal of Display Technology

    Volume

    5

    Issue/Number

    8

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    335

    Last Page

    340

    WOS Identifier

    WOS:000268829100001

    ISSN

    1551-319X

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