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1 July 1992 Pixel level control of the Epson LCTV
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Abstract
Liquid crystal televisions have become increasingly popular as low cost spatial light modulators. While the early devices suffered from poor resolution and low contrast, recent models compare favorably to the more traditional (and expensive) modulators. Most of the LCTVs are addressed through an RF interface to the external antenna or through a direct video input. This is a convenient interface for an input plane spatial light modulator where the scene information is provided by a video camera. Filters, however, are generally computer generated and the conversion to video can sometimes be an awkward step. A new drive circuit for the Epson Crystal Image video projector is currently under development at the U.S. Army Missile Command which allows pixel level control of the liquid crystal sandwich. This paper will discuss the proposed circuit designed to allow pixel by pixel control of the LCTV.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jeffrey A. Loudin and James C. Kirsch "Pixel level control of the Epson LCTV", Proc. SPIE 1701, Optical Pattern Recognition III, (1 July 1992); https://doi.org/10.1117/12.138315
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