SHIFT REGISTER UNIT, ITS DRIVING METHOD, SHIFT REGISTER AND DISPLAY DEVICE
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United States of America Patent
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Issued Date -
Jun 16, 2016
app pub date -
Jul 10, 2015
filing date -
Dec 15, 2014
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Abstract
A shift register unit includes a gate driving signal output end, an input end, a reset end, a clock signal end, a pull-up transistor, a pull-down transistor, a pull-down node control module and a pull-up node control module. The pull-down node control module is configured to control a pull-down node to be at a low potential at an input stage, control the pull-down transistor to be in an off state at an output stage, pull up the potential of the pull-down transistor at a reset stage, and control the pull-down transistor to be in the on state at a maintenance stage, so as to enable the gate driving signal output end to output a low level. The pull-up node control module is configured to pull up a pull-up node to be at a high potential at the input stage, control the pull-up transistor to be in an on state at the output stage so as to enable the gate driving signal output end to output a clock signal, pull down the pull-up node to be at a low level at the reset stage, and control the pull-up transistor to be in an off state at the maintenance stage.
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