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Current status of the digital micromirror device (DMD) for projection television applications
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2002
Year
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Optical MaterialsEngineeringOptic DesignDisplay TechnologyOptical PropertiesInstrumentationOptical SystemsAdvanced Display TechnologyCurrent StatusPhotonicsDigital Micromirror DeviceOptical System AlignmentProjection TelevisionOptical TolerancingHidden Hinge DmdOptoelectronicsProjection Television ApplicationsMicrofabricationOptical Information ProcessingImage ResolutionOptical SciencesOptical System Analysis
This paper describes recent advances in digital micromirror device (DMD) technology for projection television (PTV) applications, including a new device called the hidden hinge DMD with improved optical efficiency and contrast ratio. The DMD is a micromechanical, reflective spatial light modulator monolithically fabricated over a conventional CMOS SRAM address circuit. A 768/spl times/576 pixel array DMD (442,368 mirrors) has been developed for and demonstrated in one-DMD and three-DMD PTV systems having diagonals ranging in size from 42 inches to 13 feet.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>