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Proceedings Paper

Advantages of active-matrix LCD technology in electronic transparencies
Author(s): Leonid Shapiro; Lane Hauck
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Paper Abstract

Over the past five years we have been involved in the design of projection display products based on LCD panels. We have specialized in a particular application, where the panel is placed on the stage of a standard overhead projector and electrically connected to the video output of a personal computer. The LCD panel thus provides a low cost and portable method for projecting a computer screen large enough for group viewing. Our designs have been paced by the available LCD technology. As we refined our designs, we accumulated a ''wish list'' of LCD panel features. To our great satisfaction, most of our wish list desires have been met by the first generation of commercially available active matrix LCD panels. To set the stage for a discussion of active matrix technology, we first describe the technical characteristics of the predecessor technology, now known as ''passive matrix''. Then we explain the particular advantages of active matrix technology in our designs.

Paper Details

Date Published: 1 July 1992
PDF: 3 pages
Proc. SPIE 1664, High-Resolution Displays and Projection Systems, (1 July 1992); doi: 10.1117/12.60358
Show Author Affiliations
Leonid Shapiro, Proxima Corp. (United States)
Lane Hauck, Proxima Corp. (United States)

Published in SPIE Proceedings Vol. 1664:
High-Resolution Displays and Projection Systems
Elliott Schlam; Marko M.G. Slusarczuk, Editor(s)

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