DC voltage conversion circuit of liquid crystal display apparatus
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United States of America Patent
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Jun 10, 2014
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N/A
app pub date -
Oct 2, 2012
filing date -
Oct 10, 2011
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Abstract
Disclosed is a DC voltage conversion circuit of a liquid crystal display apparatus, including: a main pumping circuit including a plurality of thin film transistors and configured to output voltage for driving a liquid crystal display apparatus when the plurality of thin film transistors are alternately turned on or off; and a switch control signal generator configured to control voltages applied to gates of the plurality of thin film transistors by inversion of a clock signal, in which each thin film transistor is turned on when positive gate-source voltage is applied thereto, and turned off when negative gate-source voltage is applied thereto.
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