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公开(公告)号:US20110043548A1
公开(公告)日:2011-02-24
申请号:US12907463
申请日:2010-10-19
申请人: Alan G. Knapp , David A. Fish , Jurgen J.L. Hoppenbrouwers , Roel Van Woudenberg , Nijs C. Van Der Vaart
发明人: Alan G. Knapp , David A. Fish , Jurgen J.L. Hoppenbrouwers , Roel Van Woudenberg , Nijs C. Van Der Vaart
CPC分类号: G09G3/3233 , G09G3/3241 , G09G2300/0809 , G09G2300/0842 , G09G2300/0866 , G09G2310/027 , G09G2320/0209 , G09G2320/0223 , G09G2320/0271 , G09G2320/0276 , G09G2320/0285 , G09G2360/16
摘要: In an active matrix electroluminescent display device, an overall brightness level of an image to be displayed in a frame period is determined. A drive transistor of each pixel is controlled in dependence on an input drive signal for the pixel and on the overall brightness level, for example using a signal processor (30) to vary the pixel drive signals.This arrangement can control the pixels to limit the maximum currents drawn by the pixels, thereby limiting the cross talk effects resulting from voltage drops along row or column conductors. If an image is bright, the pixel drive levels across the image (or at least a part of the image) can be reduced, so that the maximum brightness is reduced.
摘要翻译: 在有源矩阵电致发光显示装置中,确定要在帧周期中显示的图像的整体亮度级。 根据用于像素的输入驱动信号和整体亮度级来控制每个像素的驱动晶体管,例如使用信号处理器(30)来改变像素驱动信号。 这种布置可以控制像素来限制由像素吸收的最大电流,从而限制由沿着行或列导体的电压降引起的串扰效应。 如果图像较亮,可以减少图像(或图像的至少一部分)上的像素驱动器电平,从而降低最大亮度。