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    • 21. 发明申请
    • METHODS AND SYSTEMS FOR AREA ADAPTIVE BACKLIGHT MANAGEMENT
    • 区域自适应背光管理的方法和系统
    • WO2010010963A1
    • 2010-01-28
    • PCT/JP2009/063450
    • 2009-07-22
    • SHARP KABUSHIKI KAISHAFENG, Xiao-Fan
    • FENG, Xiao-Fan
    • G09G3/36G09G3/20G09G3/34
    • G09G3/3426G09G3/3611G09G2320/0238G09G2320/0247G09G2320/0261G09G2320/0271G09G2320/0646G09G2320/066G09G2360/16
    • A method directed towards a display comprising a backlight layer of light emitting elements arranged in an array, a diffusion layer, and a display panel, is described for modifying driving values of said light emitting elements. First, an image containing driving values for each of said light emitting elements is received. Then an initial image is established, comprising virtual driving values located between said driving values. The initial image is established by convolving said image with a mask comprising locations of said virtual driving values. An approximated image is determined by convolving said initial image with a first matrix. Afterwards, a backlight deficiency image is determined which is a difference between said image and said approximated image. Then creating a compensated backlight image by convolving said backlight deficiency image with a second matrix and finally determining a modified image by adding said compensated backlight image to said input image.
    • 描述了一种针对包括排列成阵列的发光元件的背光层,扩散层和显示面板的显示器的方法,用于修改所述发光元件的驱动值。 首先,接收包含每个所述发光元件的驱动值的图像。 然后建立初始图像,其包括位于所述驱动值之间的虚拟驱动值。 通过使用包括所述虚拟驱动值的位置的掩模卷积所述图像来建立初始图像。 通过用第一矩阵卷积所述初始图像来确定近似图像。 之后,确定背光不足图像,其是所述图像和所述近似图像之间的差异。 然后,通过用第二矩阵卷积所述背光缺陷图像并最终通过将所述补偿的背光图像添加到所述输入图像来确定修正图像来创建补偿的背光图像。
    • 28. 发明申请
    • METHODS AND SYSTEMS FOR LED BACKLIGHT WHITE BALANCE
    • LED背光白平衡的方法和系统
    • WO2010038898A1
    • 2010-04-08
    • PCT/JP2009/067438
    • 2009-09-30
    • SHARP KABUSHIKI KAISHAFENG, Xiao-fanFUJIWARA, Kohji
    • FENG, Xiao-fanFUJIWARA, Kohji
    • G09G3/36G09G3/20G09G3/34
    • G09G3/3413G09G3/3426G09G2320/0233G09G2320/0666G09G2340/06G09G2360/145
    • Aspects of the present invention relate to systems and methods for performing white balance operations for an LED display backlight. One method comprises obtaining display parameters and capturing sensor data for a display(S20). Geometrical calibration between the captured sensor data and the display is performed(S22). Color conversion matrices for the display backlight may also be calculated(S24). The backlight is displayed at a selected white value and measurement of the actual color of the backlight is then performed(S26). Next a target luminance is determined based on the measured backlight color and minimization of visible luminance variation(S28). A target color is then determined and used to determine a color difference between the measured backlight color and the target color(S30,S32). From this a normalized RGB color difference and RGB color difference driving values are determined(S34,S36). New RGB driving values based on the RGB color difference values and original driving values are then determined(S38).
    • 本发明的方面涉及用于执行LED显示器背光的白平衡操作的系统和方法。 一种方法包括获得显示参数并捕获用于显示的传感器数据(S20)。 执行捕获的传感器数据和显示器之间的几何校准(S22)。 还可以计算用于显示器背光的颜色转换矩阵(S24)。 背光被显示为选定的白色值,然后执行背光的实际颜色的测量(S26)。 接下来,基于所测量的背光颜色和可见亮度变化的最小化来确定目标亮度(S28)。 然后确定目标颜色并用于确定所测量的背光颜色和目标颜色之间的色差(S30,S32)。 由此,确定归一化的RGB色差和RGB色差驱动值(S34,S36)。 然后确定基于RGB色差值和原始驱动值的新的RGB驱动值(S38)。