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    • 1. 发明授权
    • Flat display apparatus and picture quality controlling method based on panel defects
    • 基于面板缺陷的平面显示设备和图像质量控制方法
    • US07839395B2
    • 2010-11-23
    • US11477228
    • 2006-06-29
    • In Jae ChungChul Sang JangYoung Woo ChoiJong Hee Hwang
    • In Jae ChungChul Sang JangYoung Woo ChoiJong Hee Hwang
    • G09G5/00
    • G09G3/20G09G3/006G09G3/3648G09G2320/0233G09G2320/0285G09G2330/10
    • A flat panel display device may improve picture quality by compensating a panel defect by use of a circuit and a picture quality controlling method.A flat panel display device includes a display panel. A memory stores a location information and a compensation value for a panel defect location on the display panel. A first converter calculates a brightness and color difference signals from red, green, blue video signals to be displayed in the display panel. The first converter expands the number of data bits of the brightness signal to generate the expanded brightness signal. A compensating part generates a compensated brightness signal by increasing or decreasing the expanded brightness signal of the video signal to be displayed in the panel defect location. A second converter calculates the red, green, blue signals from the color difference signal and the compensated brightness signal, and generates the compensated video signal by reducing the number of bits of the calculated red, green, blue signals. A drive circuit drives the display panel by use of the compensated video signal and the uncompensated video signal.
    • 平板显示装置可以通过使用电路和图像质量控制方法补偿面板缺陷来提高图像质量。 平板显示装置包括显示面板。 存储器存储显示面板上的面板缺陷位置的位置信息和补偿值。 第一转换器计算要在显示面板中显示的红,绿,蓝视频信号的亮度和色差信号。 第一转换器扩展亮度信号的数据位数,以生成扩展的亮度信号。 补偿部分通过增加或减少要在面板缺陷位置显示的视频信号的扩大亮度信号来产生补偿亮度信号。 第二转换器从色差信号和补偿亮度信号计算红,绿,蓝信号,并通过减少所计算的红,绿,蓝信号的位数来生成补偿视频信号。 驱动电路通过使用经补偿的视频信号和未补偿的视频信号来驱动显示面板。