Title

A Broadband Wide-Incident-Angle Reflective Polarization Converter

Keywords

Light efficiency; Liquid-crystal display; Liquid-crystal film; Polarization converter

Abstract

A high-performance reflective polarization converter which could be used in a backlight recycling system for liquid-crystal-display (LCD) devices is proposed. The device consists of a twistednematic (TN) liquid-crystal film, a uniaxial A-plate, and a reflector. The configuration parameters, such as thickness and orientation of the films, are optimized using a genetic algorithm. As a result, the design can convert light from TM to TE polarization (or TE to TM) at a maximum 99.7%, minimum 91.3%, and average 96.7% conversion efficiency for the entire visible spectrum and incident angle from 0 to 60°. Such a broadband reflective polarization converter is particularly useful for enhancing the light efficiency and reducing the power consumption of LCDs. © Copyright 2009 Society for Information Display.

Publication Date

10-1-2009

Publication Title

Journal of the Society for Information Display

Volume

17

Issue

10

Number of Pages

849-852

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1889/JSID17.10.849

Socpus ID

72149113851 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/72149113851

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