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    • 9. 发明授权
    • Gate driving circuit having improved tolerance to gate voltage ripple and display device having the same
    • 栅极驱动电路具有改善的对栅极电压纹波的容限和具有其的显示器件
    • US08704748B2
    • 2014-04-22
    • US13669364
    • 2012-11-05
    • Samsung Display Co., LTD.
    • Sung-Man KimHong-Woo LeeMyung-Koo HurHee-Joon Kim
    • G09G3/36
    • G09G3/3677G09G2310/0286G11C19/184
    • A gate driving circuit and a display device having the same, a pull-up unit pulls up a current gate signal by using a first clock signal during a first period of one frame. A pull-up driver coupled to the pull-up unit receives a carry signal from one of the previous stages to turn on the pull-up unit. A pull-up unit receives a gate signal from one of the next stages, discharges the current gate signal to an off voltage level, and turns off the pull-up unit. A holder holds the current gate signal at the voltage level. An inverter turns on/off the holder in response to a first clock signal. A ripple preventer has a source and a gate coupled in common to an output terminal of the pull-up unit and a drain coupled to an input terminal of the inverter, and includes a ripple preventing diode for preventing a ripple from being applied to the inverter.
    • 一种栅极驱动电路和具有该栅极驱动电路的显示装置,上拉单元在一帧的第一周期期间通过使用第一时钟信号来上拉电流门信号。 耦合到上拉单元的上拉驱动器从前一级之一接收进位信号,以接通上拉单元。 上拉单元接收来自下一级中的一个的门信号,将当前门信号放电至截止电压电平,并关闭上拉单元。 持有者将当前门信号保持在电压电平。 逆变器响应于第一个时钟信号打开/关闭支架。 波纹防止器具有与上拉单元的输出端子共同耦合的源极和栅极,以及耦合到反相器的输入端子的漏极,并且包括用于防止纹波施加到逆变器的纹波防止二极管 。