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Proceedings Paper

Polarized back- and frontlights for LCDs
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Paper Abstract

New designs are presented of backlight systems for transmissive and transflective LCD’s based on stretched PET films with a well-defined micro-structure, which emit highly collimated or diffuse and linearly polarized light with a high efficiency. Moreover, edge-lit waveguide systems are discussed equipped slanted phase gratings which combine a range of desirable features such as a high transparency in direct view, a direct emission of light at normal angles to the plane of the waveguide and a purely unidirectional out-coupling of light towards the LCD-side. Moreover, these illumination systems emit colored, linearly polarized light which should contribute significantly to the energy efficiency of transmissive, transflective and reflective LCD displays.

Paper Details

Date Published: 28 May 2004
PDF: 12 pages
Proc. SPIE 5289, Liquid Crystal Materials, Devices, and Applications X and Projection Displays X, (28 May 2004); doi: 10.1117/12.549463
Show Author Affiliations
Chris M. Van Heesch, Technische Univ. Eindhoven (Netherlands)
H. Jagt, Philips Research Labs. (Netherlands)
Hugo J. Cornelissen, Philips Research Labs. (Netherlands)
Dirk J. Broer, Philips Research Labs. (Netherlands)
Technische Univ. Eindhoven (Netherlands)
Cees W. M. Bastiaansen, Technische Univ. Eindhoven (Netherlands)

Published in SPIE Proceedings Vol. 5289:
Liquid Crystal Materials, Devices, and Applications X and Projection Displays X
Ming Hsien Wu; Liang-Chy Chien, Editor(s)

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