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    • 9. 发明公开
    • 액정표시장치의 레벨 시프터
    • 液晶显示器液位变送器
    • KR1020130107912A
    • 2013-10-02
    • KR1020120030091
    • 2012-03-23
    • 엘지디스플레이 주식회사
    • 박민규
    • G09G3/36
    • G09G3/3611G09G3/3648G09G3/3677G09G3/3688G09G2310/0289G09G2330/026G09G2370/08
    • PURPOSE: A level shifter of a liquid crystal display device prevents the malfunction of the liquid crystal display device in a power-on sequence process by discharging an output voltage of the level shifter during initialization time. CONSTITUTION: A level shifter (26) includes a pull-down transistor and an output stabilizer (62). The pull-down transistor discharges an output terminal voltage of the level shifter including a source terminal in which a gate low voltage is supplied and a drain terminal connected to an output terminal of the level shifter. The output stabilizer is connected to a gate terminal of the pull-down transistor, controls a gate voltage of the pull-down transistor in a power-on sequence process, and discharges an output voltage of the level shifter.
    • 目的:液晶显示装置的电平移位器通过在初始化时间内放电电平移位器的输出电压来防止上电顺序处理中的液晶显示装置的故障。 构成:电平移位器(26)包括下拉晶体管和输出稳定器(62)。 下拉晶体管放电电平移位器的输出端电压,其包括提供栅极低电压的源极端子和连接到电平移位器的输出端子的漏极端子。 输出稳压器连接到下拉晶体管的栅极端子,在通电顺序处理中控制下拉晶体管的栅极电压,并放电电平转换器的输出电压。