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    • 3. 发明申请
    • Display device, signal processing circuit, program, and display method
    • 显示设备,信号处理电路,程序和显示方式
    • US20070109317A1
    • 2007-05-17
    • US11595935
    • 2006-11-13
    • Takeshi MinakuchiMasakatsu Fujimoto
    • Takeshi MinakuchiMasakatsu Fujimoto
    • G09G5/02
    • H04N9/68H04N9/73
    • When a YUV signal is inputted to a signal processing circuit from the outside, a histogram detection unit detects a histogram of a single frame of the Y signal, a correlation determination unit determines a correlation between a gain and a level of an inputted Y signal on the basis of the histogram, and a YUV gain determination unit determines the gain. A Y gain multiplication unit and a UV gain multiplication unit multiply each of the inputted Y signal, U signal, and V signal by the same gain to correct the YUV signal. A YUV/RGB conversion unit converts the signal into an RGB signal, and outputs the result to a display element. In the display device, there is no change in color balance even when contrast correction and other nonlinear signal processing are performed.
    • 当YUV信号从外部输入到信号处理电路时,直方图检测单元检测Y信号的单帧的直方图,相关确定单元确定输入的Y信号的增益和电平之间的相关性 直方图的基础,YUV增益确定单元确定增益。 Y增益乘法单元和UV增益乘法单元将输入的Y信号,U信号和V信号中的每一个乘以相同的增益以校正YUV信号。 YUV / RGB转换单元将信号转换为RGB信号,并将结果输出到显示元件。 在显示装置中,即使进行对比度校正和其他非线性信号处理,也不会改变色彩平衡。