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    • 9. 发明授权
    • Level shifter circuit, scanning line driver and display device
    • 电平移位电路,扫描线驱动器和显示装置
    • US08743045B2
    • 2014-06-03
    • US13322507
    • 2010-05-28
    • Tatsuya Ishida
    • Tatsuya Ishida
    • G09G3/36
    • G09G3/3677H03K19/018521
    • An object of the present invention is to achieve a scanning line drive device which allows further reduction of circuit scale and production costs. A gate driver (100) of the present invention includes: a shift register circuit (1) including g latch circuits (21) to (2g); g selection circuits (8); and g level shifter circuits (3). A level shifter circuit (3) of an output drive circuit (st1) receives a pulse (61) from a NAND circuit (6) of a selection circuit (8) at its input terminal (N1); a pulse (71) from a NAND circuit (7) of the selection circuit (8) at its input terminal (N2); and a pulse (Q1) from a latch circuit (21) at its input terminal (N3). The level shifter circuit (3) of the output drive circuit (st1) outputs a voltage signal obtained by converting the voltage level of the pulse (61) from its output terminal (O1); and a voltage signal obtained by converting the voltage level of the pulse (71) from its output terminal (O2).
    • 本发明的目的在于实现能够进一步降低电路规模和生产成本的扫描线驱动装置。 本发明的栅极驱动器(100)包括:移位寄存器电路(1),包括g个锁存电路(21)至(2g); g选择电路(8); 和电平移位器电路(3)。 输出驱动电路(st1)的电平移位电路(3)在其输入端(N1)处从选择电路(8)的NAND电路(6)接收脉冲(61); 来自选择电路(8)的NAND电路(7)的输入端(N2)的脉冲(71); 以及来自其输入端(N3)的锁存电路(21)的脉冲(Q1)。 输出驱动电路(st1)的电平移位电路(3)输出通过从其输出端子(O1)转换脉冲(61)的电压电平而获得的电压信号; 以及通过从其输出端子(O2)转换脉冲(71)的电压电平而获得的电压信号。