LOW POWER SOURCE DRIVING DEVICE
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United States of America Patent
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Issued Date -
May 21, 2009
app pub date -
Nov 21, 2007
filing date -
Nov 21, 2007
priority date (Note) -
Abandoned
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Abstract
A low power source driving device adopted for use on liquid crystal drivers includes a time series controlled digital circuit to generate different digital signal combinations and a dynamically regulated source driver bias circuit to regulate by stages bias currents of source drivers according to the digital signal combinations so that output can reach a Gamma potential while power consumption is reduced at the same time. Increasing the stage number of the bias currents can further reduce power consumption.
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