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    • 12. 发明授权
    • Image processing apparatus and mobile terminal apparatus
    • 图像处理装置和移动终端装置
    • US07671901B2
    • 2010-03-02
    • US11195870
    • 2005-08-03
    • Kozo MasudaYasutaka Tsuru
    • Kozo MasudaYasutaka Tsuru
    • H04N5/235
    • H04N9/643H04N5/20H04N5/58H04N9/68H04N21/4131H04N21/41407H04N21/42202H04N21/4318H04N21/44008
    • An image processing apparatus has an input portion for receiving video signals, an illumination sensor for detecting illumination of an environmental light, a corrector for correcting the video signals, and a controller for controlling the corrector to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals and with the detected illumination when any change occurs in the video signal. The apparatus further has a detector for detecting a change of the video signals in accordance with a mean value of luminance of the inputted video signals, a corrector for correcting the video signals, and a controller for controlling the correction portion to correct the video signals in accordance with distribution of luminance or hue or saturation of the video signals when the detector detects the change of the video signals.
    • 图像处理装置具有用于接收视频信号的输入部分,用于检测环境光的照明的照明传感器,用于校正视频信号的校正器,以及用于控制校正器以根据亮度分布校正视频信号的控制器 或视频信号的色调或饱和度以及视频信号中发生任何变化时的检测到的照明。 该装置还具有用于根据输入的视频信号的亮度的平均值来检测视频信号的变化的检测器,用于校正视频信号的校正器,以及用于控制校正部分以校正视频信号的视频信号的控制器 根据检测器检测到视频信号的变化时的视频信号的亮度或色调或饱和度的分布。
    • 13. 发明申请
    • Image Display Apparatus
    • 图像显示装置
    • US20100045694A1
    • 2010-02-25
    • US12491334
    • 2009-06-25
    • Kazuhiko TanakaYasutaka TsuruYuya Ogi
    • Kazuhiko TanakaYasutaka TsuruYuya Ogi
    • G09G3/36G09G5/02
    • G09G3/342G09G3/36G09G2320/0233G09G2320/062
    • In a local dimming technology for reducing power consumption of a display device using a backlight as in a liquid crystal display, the backlight is configured by a plurality of independently controllable light sources, an image is divided into areas of the same number as that of the controllable light sources and light emission intensity of the light source is calculated based on a feature value of each area. However, this technology has a problem that when a backlight luminance distribution within each area is not uniform, image quality is deteriorated or a power consumption reduction effect is lowered.In the present invention, the image is divided into areas of the number greater than that of the controllable light sources, and the light emission intensity of each light source is determined based on the feature values of a plurality of areas to reduce the above-described problem.
    • 在用于降低液晶显示器中使用背光的显示装置的功耗的局部调光技术中,背光由多个可独立控制的光源构成,图像被划分为与 基于每个区域的特征值计算可控光源和光源的发光强度。 然而,该技术存在的问题是,当各区域内的背光亮度分布不均匀时,图像质量劣化或降低功耗降低效果。 在本发明中,将图像分割为比可控光源大的数量的区域,并且基于多个区域的特征值来确定每个光源的发光强度,以减少上述 问题。
    • 14. 发明申请
    • Image display apparatus
    • 图像显示装置
    • US20060061842A1
    • 2006-03-23
    • US11063752
    • 2005-02-24
    • Naoya OkaRyo HasegawaYasutaka TsuruHiroshi AokiHirofumi Sakamoto
    • Naoya OkaRyo HasegawaYasutaka TsuruHiroshi AokiHirofumi Sakamoto
    • G03F3/08
    • H04N5/202H04N9/69
    • The present invention provides a technique for performing gamma correction processing when there are a plurality of characteristic areas, each of which is characterized by the high frequency in a luminance histogram to improve the impression of contrast. According to the present invention, a luminance characteristic detector (4) detects the luminance of an input image signal and a microcomputer (5) calculates an APL and a luminance histogram of an input image signal. A gamma correction circuit (6) performs the gamma correction processing in response to the luminosity of the input image signal by use of the result of the calculation carried out by the microcomputer (5). Then, if there are a plurality of characteristic areas, each of which is characterized by the high frequency in the luminance histogram, a characteristic emphasis circuit (7) performs grayscale extension processing for the plurality of characteristic areas. This makes it possible to perform the most suitable processing in response to the input image signal so that the impression of contrast is improved.
    • 本发明提供了一种用于在存在多个特征区域时执行伽马校正处理的技术,每个特征区域的特征在于亮度直方图中的高频以改善对比度的印象。 根据本发明,亮度特性检测器(4)检测输入图像信号的亮度,并且微计算机(5)计算输入图像信号的APL和亮度直方图。 伽马校正电路(6)通过使用由微计算机(5)执行的计算结果,响应于输入图像信号的亮度来进行伽马校正处理。 然后,如果存在多个特征区域,其特征在于亮度直方图中的高频,特征强调电路(7)对多个特征区域进行灰度级扩展处理。 这使得可以响应于输入图像信号执行最合适的处理,从而改善了对比度的印象。
    • 16. 发明申请
    • IMAGE DISPLAY DEVICE
    • 图像显示设备
    • US20110249039A1
    • 2011-10-13
    • US13079076
    • 2011-04-04
    • Yuya OGIYasutaka TsuruKazuhiko Tanaka
    • Yuya OGIYasutaka TsuruKazuhiko Tanaka
    • G09G5/10
    • G09G3/3426G09G3/3611G09G2320/0233G09G2320/062G09G2320/064G09G2320/0646G09G2330/021G09G2360/16
    • In a liquid-crystal display device including an edge-light-scheme-employed backlight device, it is implemented to reduce its power consumption while maintaining its excellent picture-quality. The present invention is applied to the backlight device with a plurality of edge-light-scheme backlight cells in a matrix-like manner including a LED light-source, and a light-guiding plate for emitting light. The intensity of light from a backlight cell positioned at a screen's peripheral portion is so controlled as to be made lower than the intensity of light from a backlight cell at a central portion. The light intensity of a backlight cell having a LED light-source adjacent to a first edge portion of the illumination surface of the backlight device is so controlled as to be made higher than the light intensity of a backlight cell adjacent to a second edge portion opposed to the first edge portion.
    • 在包括边缘照明方案的背光装置的液晶显示装置中,实现了降低其功耗,同时保持其优异的图像质量。 本发明以包括LED光源的矩阵状方式和用于发光的导光板应用于具有多个边缘光方案背光单元的背光装置。 来自位于屏幕周边部分的背光单元的光的强度被控制得低于在中心部分来自背光单元的光的强度。 具有与背光装置的照明面的第一边缘部相邻的LED光源的背光单元的光强度被控制为高于与相对的第二边缘部相邻的背光单元的光强度 到第一边缘部分。
    • 18. 发明授权
    • Image display apparatus and backlight unit to be used therein
    • 用于其中的图像显示装置和背光单元
    • US07911558B2
    • 2011-03-22
    • US12127025
    • 2008-05-27
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • G02F1/1333G02F1/1335
    • G02F1/133608G02F1/133604G02F2001/133612
    • An image display apparatus includes a backlight unit including a plurality of light sources arranged in a flat, a reflecting portion for reflecting light from the light sources, a diffuser for diffusing the light from the light sources and the light reflected from the reflecting portion, and a chassis for maintaining or supporting the light sources, the reflecting portion and the diffuser; and a liquid crystal display unit which receives the light diffused by the diffuser of the backlight unit. Concave portions are formed in the chassis at positions corresponding to electrodes of the plurality of light sources, positions corresponding to light-emitting portions of the light sources are arranged in a flat, and a circuit for driving the liquid crystal display unit is provided on a rear surface of a planar portion of the chassis. Accordingly, it is possible to realize a thin lightweight backlight with high luminance and high luminance uniformity.
    • 一种图像显示装置,包括:背光单元,包括平面布置的多个光源,用于反射来自光源的光的反射部;漫射来自光源的光和从反射部反射的光; 用于维持或支撑光源的底盘,反射部分和扩散器; 以及液晶显示单元,其接收由所述背光单元的漫射器漫射的光。 凹槽部分形成在底座中对应于多个光源的电极的位置处,与光源的发光部分相对应的位置被布置成平面,并且用于驱动液晶显示单元的电路设置在 底盘的平面部分的后表面。 因此,可以实现具有高亮度和高亮度均匀性的薄型轻质背光。
    • 20. 发明授权
    • Image display apparatus
    • 图像显示装置
    • US07940351B2
    • 2011-05-10
    • US12230726
    • 2008-09-04
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • Mayumi NagayoshiSatoshi OuchiSeiji MurataYasutaka Tsuru
    • G02F1/1335
    • G02F1/133611G02F1/133603G02F2001/133607G02F2203/02
    • An image display apparatus includes: a plurality of light sources for emitting light; an optical uniformizing portion for uniformizing light emitted from the plurality of light sources; a total reflection portion disposed above the plurality of light sources, the total reflection portion totally reflecting light from the optical uniformizing portion; an optical guide portion for guiding light totally reflected at the total reflection portion; an optical diffusion unit for diffusing light from the total reflection portion and outputting the diffused light; an optical parallelizing unit for parallelizing light from the optical diffusion unit; and a liquid crystal panel for modulating light from the optical parallelizing unit into an optical image in accordance with an image signal and displaying the optical image.
    • 一种图像显示装置包括:多个用于发光的光源; 用于使从所述多个光源发射的光均匀化的光学均匀化部分; 全反射部分,设置在多个光源的上方,全反射部分全反射来自光学均匀化部分的光; 用于引导在全反射部分全反射的光的光导部; 光漫射单元,用于漫射来自全反射部分的光并输出漫射光; 用于使来自光扩散单元的光并行化的光学并行化单元; 以及用于根据图像信号将来自光学并行化单元的光调制成光学图像并显示光学图像的液晶面板。