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    • 8. 发明申请
    • Output driving circuits of output buffers for source driver integrated circuits
    • 用于源极驱动器集成电路的输出缓冲器的输出驱动电路
    • US20100134471A1
    • 2010-06-03
    • US12591482
    • 2009-11-20
    • Ki-Won SeoJae-Wook KwonDo-Yun KimSung-Pil Choi
    • Ki-Won SeoJae-Wook KwonDo-Yun KimSung-Pil Choi
    • G09G5/00
    • G09G3/3688G09G3/3614G09G2320/02
    • An output driving circuit is provided that may reduce power consumption by decreasing static current leakage in a liquid crystal display device. The output driving circuit of an output buffer of a source driver integrated circuit may include: an output driving unit including a pull-up transistor and a pull-down transistor coupled to a source line driving signal output terminal; and a sub output driving unit configured to perform an output driving operation together with the output driving unit during a normal operation period of an active horizontal synchronization signal and configured to be disabled during a period in which the horizontal synchronization signal is inactive in response to a control signal, in order to reduce static current leakage flowing through the output driving circuit. Current leakage is reduced in the inactive period of a horizontal synchronization signal in an output driving circuit, thereby reducing power consumption of a liquid crystal display device.
    • 提供一种输出驱动电路,其可以通过降低液晶显示装置中的静电流泄漏来降低功耗。 源极驱动器集成电路的输出缓冲器的输出驱动电路可以包括:输出驱动单元,包括耦合到源极线驱动信号输出端的上拉晶体管和下拉晶体管; 以及副输出驱​​动单元,被配置为在活动水平同步信号的正常操作期间内与所述输出驱动单元一起执行输出驱动操作,并且被配置为在所述水平同步信号响应于所述水平同步信号无效的时段期间被禁用 控制信号,以减少流过输出驱动电路的静电流泄漏。 在输出驱动电路中的水平同步信号的无效期间,电流泄漏减少,从而降低了液晶显示装置的功耗。