Display device of digital drive type
    8.
    发明授权
    Display device of digital drive type 有权
    数显驱动型显示装置

    公开(公告)号:US07358935B2

    公开(公告)日:2008-04-15

    申请号:US10498527

    申请日:2002-12-09

    IPC分类号: G09G3/30

    摘要: The invention provides an organic LED display device of the digital drive type which has a display panel comprising a plurality of pixels 51. Each of the pixels 51 comprises an organic EL element 50, a drive transistor TR2 for effecting or interrupting the passage of current through the EL element 50 in response to the input of an on/off control signal, a write transistor TR1 to be brought into conduction upon receiving scanning voltage applied thereto from a scanning driver, a capacitance element C to be supplied with data voltage from a data driver by the write transistor TR1 conducting, and a comparator 9 for comparing a predetermined ramp voltage with the output voltage of the capacitance element C and supplying the result of comparison to the drive transistor TR2 as the on/off control signal.

    摘要翻译: 本发明提供一种具有包括多个像素51的显示面板的数字驱动型有机LED显示装置。 每个像素51包括有机EL元件50,驱动晶体管TR2,用于响应于导通/截止控制信号的输入而影响或中断通过EL元件50的电流,写入晶体管TR 1为 在从扫描驱动器施加到其上的扫描电压时接收到导通,由写入晶体管TR1导通的数据驱动器提供数据电压的电容元件C以及用于将预定斜坡电压与输出电压进行比较的比较器9 并将比较结果作为开/关控制信号提供给驱动晶体管TR2。