LIQUID CRYSTAL DISPLAY APPARATUS AND TELEVISION RECEIVER
    1.
    发明申请
    LIQUID CRYSTAL DISPLAY APPARATUS AND TELEVISION RECEIVER 审中-公开
    液晶显示设备和电视接收器

    公开(公告)号:US20120162532A1

    公开(公告)日:2012-06-28

    申请号:US13393151

    申请日:2010-08-30

    IPC分类号: G09G3/36 H04N3/10 G09G5/10

    摘要: A liquid crystal display apparatus and a television receiver enable an improvement in visibility in a low-tone range in a configuration in which the brightness of a backlight is changed on the basis of brightness information relating to an image. The apparatus includes an APL curve setting portion and a histogram luminance modulating portion which adjust the brightness of the backlight and a tone signal on the basis of the average brightness of the image and the brightness histogram of the image. A black extending portion applies gamma correction to the tone signal adjusted by the histogram luminance modulating portion on the basis of a previously set gamma value.

    摘要翻译: 液晶显示装置和电视接收机能够在基于与图像有关的亮度信息改变背光源的亮度的配置中提高低色调范围的可视性。 该装置包括基于图像的平均亮度和图像的亮度直方图来调节背光的亮度和色调信号的APL曲线设置部分和直方图亮度调制部分。 基于预先设定的伽马值,黑色延伸部分对由直方图亮度调制部分调整的色调信号应用伽马校正。

    Image processor, image processing method and recording medium
    2.
    发明申请
    Image processor, image processing method and recording medium 有权
    图像处理器,图像处理方法和记录介质

    公开(公告)号:US20090174791A1

    公开(公告)日:2009-07-09

    申请号:US12318804

    申请日:2009-01-08

    IPC分类号: H04N9/73 G06K9/00

    摘要: A correction signal capturing section of a skin color correction processing section of an image processor captures WB-corrected R1G1B1 signal values, a WB inverse correction section performs inverse correction, a YCbCr conversion section converts obtained R2G2B2 signal values into Y1Cb1Cr1 signal values. A skin color pixel region detection section detects pixels corresponding to skin color pixel regions, a skin color correction section performs skin color correction to the Y1Cb1Cr1 signal values and obtains Y2Cb2Cr2 signal values, and a RGB conversion section converts the obtained Y2Cb2Cr2 signal values into R3G3B3 signal values. A WB correction section performs WB correction to the R3G3B3 signal values and obtains R4G4B4 signal values. An output section outputs the image signals of the image reconstructed by applying said R4G4B4 signal values to the skin color pixel regions and by applying said R1G1B1 signal values to the pixel regions other than the skin color pixel regions.

    摘要翻译: 图像处理器的肤色校正处理部分的校正信号捕获部分捕获经WB校正的R1G1B1信号值,WB逆校正部分进行逆校正,YCbCr转换部将获得的R2G2B2信号值转换为Y1Cb1Cr1信号值。 肤色像素区域检测部检测与肤色像素区域对应的像素,肤色校正部对Y1Cb1Cr1信号值进行肤色校正,得到Y2Cb2Cr2信号值,RGB转换部将所获得的Y2Cb2Cr2信号值转换为R3G3B3信号 价值观。 WB校正部分对R3G3B3信号值执行WB校正,并获得R4G4B4信号值。 输出部分通过将所述R4G4B4信号值应用于肤色像素区域并通过将所述R1G1B1信号值应用于皮肤颜色像素区域以外的像素区域来输出重建图像的图像信号。

    Video displaying apparatus
    4.
    发明申请
    Video displaying apparatus 审中-公开
    视频显示装置

    公开(公告)号:US20090085862A1

    公开(公告)日:2009-04-02

    申请号:US12283932

    申请日:2008-09-17

    IPC分类号: G09G3/36

    摘要: A video displaying apparatus is provided that can change light-modulation rate of a backlight source in accordance with changes in a feature quantity of an input video signal based on a difference between times required for the light adaptation and the dark adaptation.A video displaying apparatus includes a liquid crystal panel 3 that displays an input video signal, a backlight source 9 that applies light to the liquid crystal panel 3, an APL detecting part 6 that detects APL of the input video signal, and a control microcomputer 8 that variably controls a change amount of emission luminance of the backlight source 9 for each predetermined time based on the detected APL. The control microcomputer 8 performs control such that the change amount for the APL of the input video signal changing to a higher quantity becomes greater than the change amount for the APL of the input video signal changing to a lower quantity.

    摘要翻译: 提供一种视频显示装置,其可以基于输入视频信号的特征量的变化,基于光适应和暗适应所需的时间差来改变背光源的调制率。 视频显示装置包括显示输入视频信号的液晶面板3,向液晶面板3施加光的背光源9,检测输入视频信号的APL的APL检测部6以及控制微型计算机8 其基于检测到的APL,可变地控制背光源9的每个预定时间的发光亮度的变化量。 控制微型计算机8执行控制,使得输入视频信号的APL的变化量变为更高的量变得大于输入视频信号的APL的变化量变为较低的量。

    Image processor, image processing method and recording medium
    6.
    发明授权
    Image processor, image processing method and recording medium 有权
    图像处理器,图像处理方法和记录介质

    公开(公告)号:US08134611B2

    公开(公告)日:2012-03-13

    申请号:US12318804

    申请日:2009-01-08

    IPC分类号: H04N9/73

    摘要: A correction signal capturing section of a skin color correction processing section of an image processor captures WB-corrected R1G1B1 signal values, a WB inverse correction section performs inverse correction, a YCbCr conversion section converts obtained R2G2B2 signal values into Y1Cb1Cr1 signal values. A skin color pixel region detection section detects pixels corresponding to skin color pixel regions, a skin color correction section performs skin color correction to the Y1Cb1Cr1 signal values and obtains Y2Cb2Cr2 signal values, and a RGB conversion section converts the obtained Y2Cb2Cr2 signal values into R3G3B3 signal values. A WB correction section performs WB correction to the R3G3B3 signal values and obtains R4G4B4 signal values. An output section outputs the image signals of the image reconstructed by applying said R4G4B4 signal values to the skin color pixel regions and by applying said R1G1B1 signal values to the pixel regions other than the skin color pixel regions.

    摘要翻译: 图像处理器的肤色校正处理部分的校正信号捕获部分捕获经WB校正的R1G1B1信号值,WB逆校正部分进行逆校正,YCbCr转换部将获得的R2G2B2信号值转换为Y1Cb1Cr1信号值。 肤色像素区域检测部检测与肤色像素区域对应的像素,肤色校正部对Y1Cb1Cr1信号值进行肤色校正,得到Y2Cb2Cr2信号值,RGB转换部将获得的Y2Cb2Cr2信号值变换为R3G3B3信号 价值观。 WB校正部分对R3G3B3信号值执行WB校正,并获得R4G4B4信号值。 输出部分通过将所述R4G4B4信号值应用于肤色像素区域并通过将所述R1G1B1信号值应用于皮肤颜色像素区域以外的像素区域来输出重建图像的图像信号。