Invention Application
US20160171915A1 Gate Driving Circuit and Display Device Including the Same 审中-公开
门驱动电路和包括其的显示设备

  • Patent Title: Gate Driving Circuit and Display Device Including the Same
  • Patent Title (中): 门驱动电路和包括其的显示设备
  • Application No.: US14872773
    Application Date: 2015-10-01
  • Publication No.: US20160171915A1
    Publication Date: 2016-06-16
  • Inventor: Ju-Young LeeSeung-Wan Cho
  • Applicant: LG Display Co., Ltd.
  • Priority: KR10-2014-0177485 20141210
  • Main IPC: G09G3/20
  • IPC: G09G3/20 G11C19/28
Gate Driving Circuit and Display Device Including the Same
Abstract:
A gate driving circuit sequentially outputting a gate voltage using a high level power voltage, a low level power voltage, a start voltage, a previous stage gate voltage, a next stage gate voltage and a clock, includes: a shift register including a plurality of stages connected to each other by a cascade connection, each of the plurality of stages including: a first thin film transistor (TFT) switched by the start voltage or the previous stage gate voltage and transmitting the high level power voltage to a Q node; a second TFT switched by the next stage gate voltage and transmitting the low level power voltage to the Q node; a third TFT switched by a voltage of the Q node and transmitting the clock to an output node; and a first resistor connected between the output node and the low level power voltage.
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