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    • 4. 发明授权
    • Luminous display and its driving method
    • 发光显示及其驱动方法
    • US06351255B1
    • 2002-02-26
    • US09188377
    • 1998-11-10
    • Shinichi IshizukaTsuyoshi Sakamoto
    • Shinichi IshizukaTsuyoshi Sakamoto
    • G09G330
    • G09G3/3216G09G3/3266G09G3/3283G09G2310/0248G09G2310/0251G09G2310/0256G09G2320/0223G09G2320/043
    • In a luminous display method according to a simple matrix drive system and its driving method in which luminous elements are connected at the intersections of a plurality of anode lines and a plurality of cathode lines which are arranged in matrix form, the cathode lines or the anode lines are employed as scanning lines, while the others are employed as drive lines, and while the scanning lines are scanned with a predetermined period, in synchronization with the scanning operation drive sources are connected to desired drive lines thereby to cause luminous elements to emit lights which are connected at the intersections of the scanning lines and the drive lines; in which, during a period of time before, after the scanning of an optional scanning line is accomplished, the scanning is switched over to the scanning of the next scanning line, an offset voltage is applied to charge the luminous elements.
    • 在根据简单矩阵驱动系统及其驱动方法的发光显示方法中,其中发光元件连接在多个阳极线和以矩阵形式布置的多个阴极线的交点处,阴极线或阳极 线被用作扫描线,而其它的被用作驱动线,并且当扫描线以预定周期扫描时,与扫描操作同步地,驱动源连接到期望的驱动线,从而使发光元件发光 其连接在扫描线和驱动线的交点处; 其中,在完成扫描任选的扫描线之前的一段时间内,将扫描切换到下一扫描线的扫描,施加偏移电压以对发光元件充电。
    • 6. 发明授权
    • Apparatus and method for driving display panel
    • 用于驱动显示面板的装置和方法
    • US06771235B2
    • 2004-08-03
    • US09985152
    • 2001-11-01
    • Shinichi IshizukaTsuyoshi SakamotoHideo Ochi
    • Shinichi IshizukaTsuyoshi SakamotoHideo Ochi
    • G09G330
    • G09G3/3216G09G3/2014G09G3/3266G09G3/3283G09G2310/0256G09G2320/02G09G2320/0233G09G2320/043
    • An apparatus for driving a display panel having drive lines and capacitive light emitting elements. The apparatus sequentially selects one scanning line from the scanning lines every scanning period of input video data including a gradation level to specify a drive line corresponding to at least one capacitive light emitting element driven to emit light on the one scanning line in accordance with the input video data, generates a driving signal having a pulse width in accordance with the gradation level every scanning period, and applies the one capacitive light emitting element with a voltage equal to or higher than a light emission threshold voltage in a forward direction for a duration in which the driving signal is generated, through the one scanning line and the specified drive line, and applies the specified drive line with a predetermined potential in response to elimination of the driving signal to decrease the voltage applied to the one capacitive light emitting element in the forward direction to a voltage lower than the light emission threshold voltage.
    • 一种用于驱动具有驱动线和电容发光元件的显示面板的装置。 该装置依次从扫描行中选择一条扫描行,每个扫描行包括灰度等级的输入视频数据的每个扫描周期,以指定与至少一个电容发光元件相对应的驱动线,该电容发光元件根据输入被驱动以在一条扫描线上发光 视频数据产生具有根据每个扫描周期的灰度级别的脉冲宽度的驱动信号,并将具有等于或高于发光阈值电压的电容式发光元件在正向上施加一段持续时间 通过一条扫描线和指定的驱动线产生驱动信号,并且响应于消除驱动信号而施加具有预定电位的指定驱动线,以降低施加到该驱动信号中的一个电容发光元件的电压 向前方向到低于发光阈值电压的电压。
    • 8. 发明授权
    • Panel display driving device and driving method
    • 面板显示驱动装置及驱动方式
    • US07274363B2
    • 2007-09-25
    • US10322776
    • 2002-12-19
    • Shinichi IshizukaMasami TsuchidaHideo OchiTsuyoshi Sakamoto
    • Shinichi IshizukaMasami TsuchidaHideo OchiTsuyoshi Sakamoto
    • G09G5/00
    • G09G3/3233G09G3/2011G09G3/2022G09G2310/0221G09G2310/04G09G2320/0233G09G2320/0285G09G2320/029G09G2320/043G09G2320/0693
    • A display panel driving device and driving method for providing high quality images without irregular luminance even after long-time use. The value of the light-emission drive current flowing when causing each light-emission elements bearing each pixel to independently emit light in succession is measured, then the luminance is corrected for each input pixel data based on the above light-emission drive current values, associated with the pixels corresponding to the input pixel data. According to another aspect, the voltage value of the drive voltage is adjusted in such a manner that one value among each measured light-emission drive current value becomes equal to a predetermined reference current value. According to a further aspect, the current value is measured while an off-set current component corresponding to a leak current of the display panel is added to the current outputted from the drive voltage generator circuit and the resultant current is supplied to each of the pixel portions.
    • 一种显示面板驱动装置和驱动方法,即使在长时间使用之后也能提供高质量的图像而没有不规则的亮度。 测量使带有各像素的各发光元件依次独立地发光的流动的发光驱动电流的值,然后基于上述发光驱动电流值对每个输入像素数据校正亮度, 与对应于输入像素数据的像素相关联。 根据另一方面,调节驱动电压的电压值,使得每个测量的发光驱动电流值中的一个值变得等于预定的参考电流值。 根据另一方面,测量电流值,同时将与显示面板的泄漏电流相对应的偏移电流分量加到从驱动电压发生器电路输出的电流中,并将所得到的电流提供给每个像素 部分。