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Proceedings Paper

A full-color SXGA TN AMLCD for military head-mounted displays and viewer applications
Author(s): Ollie Woodard; Jason Lo; Murshed Khandaker; John Gassel; Frederick Herrmann; Hiap Ong; Bor Yeu Tsaur; Colin Reese
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Paper Abstract

We report progress in developing a 0.97-in diagonal AMLCD with a full color SXGA resolution. A 1280×1024×3 dot array was developed with integrated color pixel filters to create an SXGA color pixel array. These displays are fabricated on 8-inch SOI wafers and transferred to glass wafers to produce transmissive liquid crystal displays. Improvements have been made in this AMLCD to bring the fabrication process to manufacturing. Fabricating a 3.9 million pixel dot display on a 1-inch die required a new display design and fabrication in an 8-inch wafer line. The 8-inch process provided enhanced process capabilities and tighter design rules to achieve good performance and reasonable starting yields. An ASIC driver and ultra thin efficient backlight were developed to miniaturize the display module and to reduce total power to < 750mW for soldier mounted applications. Total package size is less than 0.5 in3. The ASIC will also drive Kopin SVGA and VGA color displays singly or in pairs for binocular applications. An end-to-end 8-inch wafer process was established at the wafer foundry and at Kopin. A 3-year manufacturing technology insertion program (Mantech) has begun to optimize the 8-inch line processes and the SXGA color display. Meeting yield and performance goals will reduce display cost and enable systems performance goals. Key results include vivid, high-resolution color, wide viewing angles and low power operation. Performance data and specifications will be presented.

Paper Details

Date Published: 18 April 2008
PDF: 10 pages
Proc. SPIE 6955, Head- and Helmet-Mounted Displays XIII: Design and Applications, 69550B (18 April 2008); doi: 10.1117/12.786178
Show Author Affiliations
Ollie Woodard, Kopin Corp. (United States)
Jason Lo, Kopin Corp. (United States)
Murshed Khandaker, Kopin Corp. (United States)
John Gassel, Kopin Corp. (United States)
Frederick Herrmann, Kopin Corp. (United States)
Hiap Ong, Kopin Corp. (United States)
Bor Yeu Tsaur, Kopin Corp. (United States)
Colin Reese, U.S. Army RDECOM CERDEC Night Vision & Electronic Sensors Directorate (United States)

Published in SPIE Proceedings Vol. 6955:
Head- and Helmet-Mounted Displays XIII: Design and Applications
Randall W. Brown; Peter L. Marasco; Thomas H. Harding; Sion A. Jennings, Editor(s)

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