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    • 5. 发明申请
    • Image display device and image display method supporting power control of multicolor light source
    • 支持多色光源功率控制的图像显示装置和图像显示方法
    • US20080037867A1
    • 2008-02-14
    • US11878782
    • 2007-07-26
    • Seung-sin LeeIn-ji KimWon-hee ChoeDu-sik Park
    • Seung-sin LeeIn-ji KimWon-hee ChoeDu-sik Park
    • G06K9/00
    • H04N9/68
    • Provided is an image display device, more particularly, an apparatus and method that can reduce power consumption and prevent image characteristics from being degraded in an image display device using a multicolor light source. The image display device includes a histogram analysis unit calculating a parameter representative of an input image on the basis of a histogram of the input image, a model selection unit analyzing the parameter and selecting a representative model including the input image among a plurality of representative models, a luminance reduction amount calculation unit calculating a luminance reduction amount for each color light source of the input image on the basis of a maximum luminance reduction rate corresponding to the selected model, a power reduction amount calculation unit calculating a power reduction amount for each color light source according to the luminance reduction amount on the basis of a power characteristic of each color light source, and a power control unit supplying power reduced by the power reduction amount to each color light source.
    • 提供了一种图像显示装置,更具体地,涉及一种能够降低功耗并防止图像特性在使用多色光源的图像显示装置中劣化的装置和方法。 图像显示装置包括直方图分析单元,其基于输入图像的直方图来计算表示输入图像的参数;分析参数的模型选择单元,以及在多个代表模型中选择包括输入图像的代表模型 ,亮度降低量计算单元,基于与所选择的模型相对应的最大亮度降低率,计算输入图像的每个颜色光源的亮度降低量;功率降低量计算单元,计算每个颜色的功率减少量 基于每个彩色光源的功率特性根据亮度降低量的光源;以及功率控制单元,其通过功率减少量减少到每个彩色光源的功率。
    • 7. 发明授权
    • Apparatus and method for correcting color reproduced by video device according to peripheral brightness
    • 根据周边亮度校正由视频设备再现的颜色的装置和方法
    • US07800800B2
    • 2010-09-21
    • US11593515
    • 2006-11-07
    • Hyun-wook OkSeong-deok LeeYoung-shin KwakIn-ji KimChang-yeong KimWon-hee Choe
    • Hyun-wook OkSeong-deok LeeYoung-shin KwakIn-ji KimChang-yeong KimWon-hee Choe
    • G03F3/08
    • H04N9/68H04N1/6027H04N1/6088H04N5/58H04N21/4318
    • An apparatus and method are provided for correcting a color reproduced by a video device according to peripheral brightness so that the visibility of the video device is guaranteed under peripheral conditions brighter than the video device. The apparatus for correcting a color reproduced by a video device according to peripheral brightness includes: a lookup-table-creation unit which creates a lookup table based on saturation of the video device and brightness of peripheral conditions; a color-correction unit which corrects the color reproduced by the video device according to the created lookup table; and a color-error-compensation unit which compensates for color error resulting from correction of the color. The method of correcting a color reproduced by a video device according to peripheral brightness includes: creating a lookup table based on saturation of the video device and brightness of peripheral conditions; correcting the color reproduced by the video device according to the created lookup table; and compensating for color error resulting from correction of the color.
    • 提供一种用于根据外围亮度校正由视频设备再现的颜色的装置和方法,使得视频设备的可视性在比视频设备更亮的外围条件下得到保证。 用于根据周边亮度校正由视频设备再现的颜色的设备包括:查找表创建单元,其基于视频设备的饱和度和外围条件的亮度创建查找表; 颜色校正单元,其根据所创建的查找表来校正由视频设备再现的颜色; 以及补偿由颜色校正引起的颜色误差的颜色误差补偿单元。 根据外围亮度校正由视频设备再现的颜色的方法包括:基于视频设备的饱和度和外围条件的亮度创建查找表; 根据创建的查找表来校正由视频设备再现的颜色; 并补偿由颜色校正引起的颜色误差。