Method and a system for driving a display panel of matrix type
    33.
    发明授权
    Method and a system for driving a display panel of matrix type 失效
    用于驱动矩阵型显示面板的方法和系统

    公开(公告)号:US5517207A

    公开(公告)日:1996-05-14

    申请号:US301436

    申请日:1994-09-08

    IPC分类号: G09G3/30

    摘要: A method and a system for driving an electro-luminescence display panel of a matrix type has a compensation pulse applied to all the cells prior to or in the front of a pedestal pulse on every frame cycle. The level of the compensation pulse is higher than the pedestal pulse but low enough not to light the cells by itself. The duration of the compensation pulse is long enough to saturate charge polarization in the EL material of the cell, as a dielectric, at the applied voltage. Therefore, brightness of the lighted cell is kept constant regardless of the number of lighted cells on the same data electrode. Each of two power-receiving terminals of push-pull scan drivers is connected to a pulse generator respectively. One of the two power-receiving terminals may be floated from the pulse generator while data pulse is applied to the data electrodes. This configuration prevents damage of the CMOS drivers by latch-up caused therein, as well as reducing power consumption produced by charging current of the data pulses into non-lighted cells.

    摘要翻译: 用于驱动矩阵型电致发光显示面板的方法和系统具有对每个帧周期的基准脉冲之前或之前的所有单元施加的补偿脉冲。 补偿脉冲的电平高于基座脉冲,但足够低,不能自己点亮单元。 在施加的电压下,补偿脉冲的持续时间足够长以使电池的EL材料中的电荷极化作为电介质饱和。 因此,与同一数据电极上的点亮单元数量无关地,点亮单元的亮度保持恒定。 推挽扫描驱动器的两个受电端子中的每一个分别连接到脉冲发生器。 两个电力接收终端中的一个可以从脉冲发生器浮起,而数据脉冲被施加到数据电极。 这种配置防止CMOS驱动器由于其中引起的闩锁而损坏,以及减少由数据脉冲的充电电流产生的功率消耗到非点亮的单元。