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1. 发明申请

US20080284759A1 DISPLAY ELEMENT DRIVING DEVICE AND METHOD THEREOF 审中-公开
标题翻译：显示元件驱动装置及其方法
公开(公告)号：US20080284759A1
公开(公告)日：2008-11-20
申请号：US12113445
申请日：2008-05-01
申请人： Tae Kwang Park
发明人： Tae Kwang Park
IPC分类号： G09G5/00
CPC分类号： G09G3/3406 , G09G2320/0646 , G09G2320/0673 , G09G2360/16
摘要： Disclosed are a device and a method for driving a display element that adjusts a backlight luminescence to be suitable for a mean luminescence of an image data for each frame, analyzes the mean, maximum and minimum luminescence of an image to be displayed to reduce power consumption due to unnecessary backlight luminescence, and then adjusts the backlight luminescence in accordance with the analyzed result. The device for driving a display element includes a buffer memory, a histogram analyzer, a main memory, a maximum luminescence determining and mapping unit and a digital-to-analog converter (DAC). When an image data to be displayed for each frame is inputted to the buffer memory, the histogram analyzer analyzes the image data for each frame to calculate a mean luminescence, a maximum/minimum luminescence and a histogram for each of the R, G and B colors, and then outputs the analyzed image data for each frame to the maximum luminescence determining and mapping unit. Accordingly, a backlight luminescence is adjusted for each frame in accordance with the maximum luminescence, the minimum luminescence and the histogram for each color, and output value for each gray is compensated by the adjusted backlight luminescence, thereby maintaining a screen luminescence almost similar to the original luminescence and reducing power consumption.
摘要翻译：公开了一种用于驱动显示元件的装置和方法，该显示元件调节适合于每帧的图像数据的平均发光的背光发光，分析要显示的图像的平均值，最大和最小发光以降低功耗由于不必要的背光发光，然后根据分析结果调整背光发光。用于驱动显示元件的装置包括缓冲存储器，直方图分析器，主存储器，最大发光确定和映射单元以及数模转换器（DAC）。当将每帧要显示的图像数据输入到缓冲存储器时，直方图分析器分析每帧的图像数据，以计算R，G和B中的每一个的平均发光，最大/最小发光和直方图然后将每帧的分析图像数据输出到最大发光确定和映射单元。因此，根据每个颜色的最大发光，最小发光和直方图针对每个帧调整背光发光，并且通过调节的背光发光来补偿每个灰度的输出值，从而保持屏幕发光几乎类似于原有的发光和降低功耗。

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