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18 April 2008 A full-color SXGA TN AMLCD for military head-mounted displays and viewer applications
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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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ollie Woodard, Jason Lo, Murshed Khandaker, John Gassel, Frederick Herrmann, Hiap Ong, Bor Yeu Tsaur, and Colin Reese "A full-color SXGA TN AMLCD for military head-mounted displays and viewer applications", Proc. SPIE 6955, Head- and Helmet-Mounted Displays XIII: Design and Applications, 69550B (18 April 2008);

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