Enhanced global dimming for projector display systems
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United States of America Patent
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Oct 4, 2016
Grant Date -
May 7, 2015
app pub date -
Nov 3, 2014
filing date -
Nov 4, 2013
priority date (Note) -
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Abstract
Projector display systems comprising a light dimmer and first modulator are disclosed. The light dimmer may comprise an adjustable iris, adjustable light sources and/or LCD stack that is capable of lowering the luminance of the light source illuminated the first modulator. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the light dimmer and first modulator. The display system may render a desired dynamic range for rendering a projected image by a combination of such control signals.
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