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    • 1. 发明公开
    • PMOLED 구동회로 및 구동방법
    • 被动矩阵有机发光二极管驱动电路及驱动方法
    • KR1020090125414A
    • 2009-12-07
    • KR1020080051515
    • 2008-06-02
    • 크루셜칩스 주식회사
    • 신현철정성익
    • G09G3/30G09G3/32G09G3/20H01L51/50
    • G09G3/2014G09G3/3216G09G2310/0205H01L27/14609H01L29/745H01L2027/11877
    • PURPOSE: A circuit and a method for driving a PMOLED(Passive Matrix Organic Light Emitting Diode) are provided to increase lifetime of a device by reducing a size of a driving current. CONSTITUTION: A circuit for driving a PMOLED includes a PWM calculating device(710) and a line driver(720). The PWM calculating device calculates a scale factor, a variable current amount, and a correcting unit connection time through a present frame data. The line driver drives a panel by processing information of horizontal and vertical lines of the panel inside the frame data in response to the correcting unit connection time and the variable current amount. The line driver drives the horizontal lines with three steps after binding two horizontal lines of the panel into one.
    • 目的:提供用于驱动PMOLED(被动矩阵有机发光二极管)的电路和方法,以通过减小驱动电流的大小来增加器件的使用寿命。 构成:用于驱动PMOLED的电路包括PWM计算装置(710)和线驱动器(720)。 PWM计算装置通过当前帧数据计算比例因子,可变电流量和校正单元连接时间。 线路驱动器响应于校正单元连接时间和可变电流量,通过处理帧数据内的面板的水平和垂直线的信息来驱动面板。 线路驱动器将面板的两条水平线绑定成一个后,三个步骤驱动水平线。