NOR-BASED GRAYSCALE FOR A DIGITAL DISPLAY
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United States of America Patent
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Issued Date -
Mar 22, 2012
app pub date -
Sep 28, 2011
filing date -
Jan 4, 2007
priority date (Note) -
Abandoned
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Abstract
A digital display provides pulse-width-modulated pixel waveforms by applying a wired-NOR function to selected bits of stored image data. Image bits are selected according to a digital sequence and the wired-NOR function results in a trigger signal that may be used to switch the state of a pixel element. The pixel element may be a pixel state latch of a pixel driver circuit. The digital display may accept conventional 24-bit color video signals (one 8-bit gray-scale value for each pixel for each of the red, green, and blue primary colors), and convert this input signal to sequential color with PWM digital gray scale drive to each pixel.
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