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    • 1. 发明申请
    • Light emitting display device
    • 发光显示装置
    • US20070013621A1
    • 2007-01-18
    • US11476847
    • 2006-06-29
    • Myung LeeSeong BaikIn KimSeung Byun
    • Myung LeeSeong BaikIn KimSeung Byun
    • G09G3/32
    • G09G3/2007G09G3/3225G09G3/3648G09G2320/0276G09G2360/16
    • A display device includes a pixel circuit unit comprising a plurality of pixels to display an image, a data driver to supply data signals to the pixel circuit unit, a scan driver to supply scan signals to the pixel circuit unit, a black/white transition detector to detect a degree of black/white transition of the image, a gamma corrector to adjust the data signal by providing a gamma value to the data driver, and a timing controller to apply control signals to the data driver and the scan driver, receive the degree of black/white transition from the black/white transition detector, and provide a corrected gamma control signal to the gamma corrector according to the degree of black/white transition.
    • 显示装置包括:像素电路单元,包括用于显示图像的多个像素;向像素电路单元提供数据信号的数据驱动器;向像素电路单元提供扫描信号的扫描驱动器;黑/白转换检测器 以检测图像的黑/白转换程度,伽马校正器,以通过向数据驱动器提供伽马值来调整数据信号;以及定时控制器,以将控制信号施加到数据驱动器和扫描驱动器,接收 从黑/白转换检测器的黑/白转换程度,并根据黑/白转换的程度向伽马校正器提供校正的伽马控制信号。
    • 2. 发明申请
    • Organic light emitting diode display device and driving method thereof
    • 有机发光二极管显示装置及其驱动方法
    • US20080007494A1
    • 2008-01-10
    • US11822022
    • 2007-06-29
    • In KimSeung ByunJin Kim
    • In KimSeung ByunJin Kim
    • G09G3/30
    • G09G3/3225G09G3/2022G09G2320/0276G09G2360/145G09G2360/148G09G2360/16
    • An organic light emitting diode display device for changing a gamma reference voltage step by step in accordance with an image brightness of a current frame to reduce damage with which the organic light emitting diode and the driving transistor thereof are applied is disclosed. In the organic light emitting diode display device, a brightness detector calculates a maximum brightness value of each pixel using inputted image data of current frame. An adder adds all maximum brightness values of each pixel which are detected by the brightness detector. An average value calculator calculates an average brightness value of a current frame using an added value of maximum brightness values which are added by the adder. A gamma weight calculator calculates a gamma reference voltage weight which is set to correspond to the calculated average brightness value among predetermined gamma reference voltage weights. And a gamma reference voltage generator changes a gamma reference voltage step by step in accordance with a gamma reference voltage weight which is calculated by the gamma weight calculator.
    • 公开了一种有机发光二极管显示装置,用于根据当前帧的图像亮度一步一步地改变伽马参考电压,以减少应用有机发光二极管及其驱动晶体管的损坏。 在有机发光二极管显示装置中,亮度检测器使用当前帧的输入图像数据来计算每个像素的最大亮度值。 加法器添加由亮度检测器检测的每个像素的所有最大亮度值。 平均值计算器使用由加法器相加的最大亮度值的相加值来计算当前帧的平均亮度值。 伽马加权计算器计算伽马参考电压权重,该伽马参考电压权重被设置为与预定伽马参考电压权重之间的计算出的平均亮度值相对应。 并且伽马参考电压发生器根据由伽马权重计算器计算的伽马参考电压权重逐步改变伽马参考电压。