Paper
28 May 2004 Polarized back- and frontlights for LCDs
Author Affiliations +
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.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chris M. Van Heesch, H. Jagt, Hugo J. Cornelissen, Dirk J. Broer, and Cees W. M. Bastiaansen "Polarized back- and frontlights for LCDs", Proc. SPIE 5289, Liquid Crystal Materials, Devices, and Applications X and Projection Displays X, (28 May 2004); https://doi.org/10.1117/12.549463
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KEYWORDS
Waveguides

LCDs

Holography

Scattering

Light scattering

Diffraction gratings

Polarization

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