Display driver converting pixel data pieces into gradation voltages and semiconductor apparatus including display driver
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United States of America Patent
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Oct 15, 2019
Grant Date -
Mar 1, 2018
app pub date -
Aug 30, 2017
filing date -
Aug 31, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A display driver includes: a plurality of decoders that converts a plurality of pixel data pieces representing luminance levels for pixels into gradation voltages having magnitudes corresponding to the luminance levels represented by the pixel data pieces, respectively; a plurality of amplifiers that provides a plurality of driving voltages obtained by amplifying the gradation voltages to a plurality of data lines of a display device, respectively; and a reference gradation voltage generator that generates a plurality of reference gradation voltages having respective different voltage values corresponding to gradation levels. Each of the decoders includes a short-circuiting control circuit that controls whether to short-circuit between a first line and a second line of each of the decoders.
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