Philips Research Single Panel Reflective LCD Projector

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Philips Research Single Panel Reflective LCD Projector
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Single panel reflective LCD projector. Jeffrey A. Shimizu. Philips Research, 345 Scarborough Road, Briarcliff Manor, NY 10510. ABSTRACT …We have constructed a high resolution projection display with a single reflective LCD panel. Reflective technology based on standard silicon CMOS processing has emerged as a favorable direction for projection displays. Advantages include low investment and fabrication costs, high resolution capability, and high aperture ratio. As a move towards lower cost and high performance, we have applied reflective technology to a single panel projection display. The pixel array is SXGA (1280×1024) and is fabricated in a process with both 5 Volt logic and 15 Volt structures. A thin 1 micron liquid crystal cell is formed over the array. A fast on time of 0.2 ms is attained with a nematic LC effect. System architecture is based upon a scrolling color illumination system wherein three color bands are present on the panel at all times. This arrangement avoids the 2/3 light loss in spectral efficiency present in a more conventional color wheel system. The system demonstrates that color sequential projection displays are feasible with LCD devices. And this direction holds great promise in a wide variety of applications including consumer HDTV displays.

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Single panel reflective LCD projector
Jeffrey A. Shimizu Philips Research, 345 Scarborough Road, Briarcliff Manor, NY 10510
ABSTRACT
We have constructed a high resolution projection display with a single reflective LCD panel. Reflective technology based on standard silicon CMOS processing has emerged as a favorable direction for projection displays. Advantages include low investment and fabrication costs, high resolution capability, and high aperture ratio. As a move towards lower cost and high performance, we have applied reflective technology to a single panel projection display. The pixel array is SXGA (1280×1024) and is fabricated i

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