Method of reducing the visual impact of defects present in a spatial light modulator display
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United States of America Patent
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Apr 2, 1996
Grant Date -
N/A
app pub date -
Jul 13, 1994
filing date -
Jul 13, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
A method and display system for reducing the visual impact of defects present in an image display. The display includes an array of pixels, each non-defective pixel being selectively operable in response to input data by addressing facilities between an 'on' state, whereat light is directed onto a viewing surface, and an 'off' state, whereat light is not directed onto the viewing surface. A defect is the result of a defective pixel which does not respond to the input data presented by the addressing facilities, typically by continuously remaining in its 'on' or 'off' state. Each defective pixel is immediately surrounded by a first ring of compensation pixels adjacent to the central defective pixel. The compensation pixels are immediately surrounded by a second ring of reference pixels spaced from the central defective pixel. The addressing circuit-determined value of at least one compensation pixel in the first ring surrounding the defective pixel is changed to a corrective value, in order to reduce the visual impact of the defect.
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Cited Art Landscape
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