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Proceedings Paper

High-Intensity Color Projection For Automotive Displays
Author(s): J. William Doane; John L. West; Janez Pirs; Slobodan Zumer; Robert Blinc
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Paper Abstract

A new type of low-loss, high-intensity projector is described for possible use in full-color reflective head-up or other automotive displays. The device is based on light shutters made from polymer dispersed liquid crystals (PDLC) which avoid the use of light-absorbing polarizers. Voltage-controlled Rayleigh scattering from PDLC shutters placed in parallel additively mix three primary colors produced by dielectric dichroic mirrors from white light, providing for arbitrary colors of the outgoing light. High-intensity and low heat dissipation due to the scattering-induced light attenuation that is possible from refractive index-matched PDLC shutters yields bright color and high-intensity large-scale projection. The light intensity yield exceeds that of conventional electrically-controlled light modulators by at least a factor of two. With the addition of an active matrix PDLC shutter, this system can replace the CRT in high information content automotive displays.

Paper Details

Date Published: 24 October 1988
PDF: 5 pages
Proc. SPIE 0958, Automotive Displays and Industrial Illumination, (24 October 1988); doi: 10.1117/12.947721
Show Author Affiliations
J. William Doane, Kent State University (United States)
John L. West, Kent State University (United States)
Janez Pirs, J. Stefan Institute (Yugoslavia)
Slobodan Zumer, J. Stefan Insiitute (Yugoslavia)
Robert Blinc, J. Stefan Institute (Yugoslavia)

Published in SPIE Proceedings Vol. 0958:
Automotive Displays and Industrial Illumination
B. Jin Chang; Thomas M. Lemons, Editor(s)

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