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    • 1. 发明申请
    • LIQUID CRYSTAL DISPLAY APPARATUS
    • 液晶显示装置
    • US20090262063A1
    • 2009-10-22
    • US12092817
    • 2006-11-01
    • Toshiyuki FujineSeiji KohashikawaYuhya SekiguchiYuhichiro Yamaguchi
    • Toshiyuki FujineSeiji KohashikawaYuhya SekiguchiYuhichiro Yamaguchi
    • G09G3/36
    • G09G3/3406G09G2320/0238G09G2320/0626G09G2320/064G09G2320/0653G09G2330/021G09G2360/144G09G2360/16H04N5/58H04N21/42202
    • The present invention provides a display device capable of realizing an appropriate screen display luminance in accordance with a video feature quantity and brightness around and sufficiently reducing power consumption. A liquid crystal display apparatus (1) includes: a liquid crystal panel (20) for displaying a video by an input video signal; a backlight unit (17) as a light source for irradiating the liquid crystal panel (20); and a brightness sensor (24) for detecting the brightness around the liquid crystal display apparatus (1). According to the brightness detected by the brightness sensor (24), luminance conversion characteristic defining the light emission luminance of the backlight for the feature quantity (such as APL) of the input video signal is changed. Here, the luminance conversion characteristic is changed so that the light emission luminance is reduced as the brightness around the liquid crystal display apparatus becomes darker and the position of the characteristic modification point as the point where the slope of the luminance conversion characteristic is changed is shifted in the direction of the feature quantity change. According to the obtained luminance conversion characteristic, the light emission luminance of the backlight is controlled.
    • 本发明提供一种能够根据视频特征量和亮度实现适当的屏幕显示亮度并充分降低功耗的显示装置。 液晶显示装置(1)包括:用于通过输入视频信号显示视频的液晶面板(20); 作为用于照射所述液晶面板(20)的光源的背光单元(17); 以及用于检测液晶显示装置(1)周围的亮度的亮度传感器(24)。 根据由亮度传感器(24)检测到的亮度,改变了对输入视频信号的特征量(例如APL)定义背光的发光亮度的亮度转换特性。 这里,改变亮度转换特性,使得随着液晶显示装置周围的亮度变暗,发光亮度降低,并且特性修改点的位置作为改变亮度变换特性的斜率的点被移位 在特征量变化的方向上。 根据获得的亮度转换特性,控制背光的发光亮度。
    • 2. 发明授权
    • Liquid crystal display apparatus
    • 液晶显示装置
    • US08384654B2
    • 2013-02-26
    • US12092817
    • 2006-11-01
    • Toshiyuki FujineSeiji KohashikawaYuhya SekiguchiYuhichiro Yamaguchi
    • Toshiyuki FujineSeiji KohashikawaYuhya SekiguchiYuhichiro Yamaguchi
    • G09G3/36
    • G09G3/3406G09G2320/0238G09G2320/0626G09G2320/064G09G2320/0653G09G2330/021G09G2360/144G09G2360/16H04N5/58H04N21/42202
    • The present invention provides a display device capable of realizing an appropriate screen display luminance in accordance with a video feature quantity and brightness around and sufficiently reducing power consumption. A liquid crystal display apparatus (1) includes: a liquid crystal panel (20) for displaying a video by an input video signal; a backlight unit (17) as a light source for irradiating the liquid crystal panel (20); and a brightness sensor (24) for detecting the brightness around the liquid crystal display apparatus (1). According to the brightness detected by the brightness sensor (24), luminance conversion characteristic defining the light emission luminance of the backlight for the feature quantity (such as APL) of the input video signal is changed. Here, the luminance conversion characteristic is changed so that the light emission luminance is reduced as the brightness around the liquid crystal display apparatus becomes darker and the position of the characteristic modification point as the point where the slope of the luminance conversion characteristic is changed is shifted in the direction of the feature quantity change. According to the obtained luminance conversion characteristic, the light emission luminance of the backlight is controlled.
    • 本发明提供一种能够根据视频特征量和亮度实现适当的屏幕显示亮度并充分降低功耗的显示装置。 液晶显示装置(1)包括:用于通过输入视频信号显示视频的液晶面板(20); 作为用于照射所述液晶面板(20)的光源的背光单元(17); 以及用于检测液晶显示装置(1)周围的亮度的亮度传感器(24)。 根据由亮度传感器(24)检测到的亮度,改变了对输入视频信号的特征量(例如APL)定义背光的发光亮度的亮度转换特性。 这里,改变亮度转换特性,使得随着液晶显示装置周围的亮度变暗,发光亮度降低,并且特性修改点的位置作为改变亮度变换特性的斜率的点被移位 在特征量变化的方向上。 根据获得的亮度转换特性,控制背光的发光亮度。
    • 4. 发明授权
    • Liquid crystal display apparatus
    • 液晶显示装置
    • US08547404B2
    • 2013-10-01
    • US11792056
    • 2006-10-16
    • Toshiyuki FujineSeiji Kohashikawa
    • Toshiyuki FujineSeiji Kohashikawa
    • G09G3/36
    • G09G3/3611G09G3/3406G09G2310/04G09G2320/0285G09G2320/062G09G2320/0646G09G2320/0653G09G2320/066G09G2320/0673G09G2340/16G09G2360/16H04N21/42204H04N21/4316H04N21/47
    • A liquid crystal display apparatus enables image display with optimum quality corresponding to the genre of an image to be displayed. The liquid crystal display apparatus controls the emission luminance of a backlight according to the APL of an image signal measured at an APL measuring portion 14. Upon emission luminance control, the display apparatus sets the follow performance of a change of the backlight emission luminance in following a change in a characteristic quantity of the image signal according to a genre so that the display image can be viewed without an odd feeling. Specifically, the APL of the image signal measured at the APL measuring portion 14 is put into a filter 15, and the rate of a change in the APL on the time axis is controlled through weighted averaging to control the follow performance of the emission luminance control on the backlight. At this time, the genre of image to be displayed is determined, and a constant used for weighted averaging on the filter 15 is changed according to the determined genre to optimize display quality for each genre.
    • 液晶显示装置使得能够以与要显示的图像的类型对应的最佳质量的图像显示。 液晶显示装置根据在APL测量部分14测量的图像信号的APL来控制背光的发光亮度。在发光亮度控制时,显示装置设置随后的背光发光亮度变化的跟随性能 根据类型的图像信号的特征量的变化,使得可以没有奇怪的感觉来观看显示图像。 具体地说,将在APL测量部分14测量的图像信号的APL放入滤波器15中,通过加权平均来控制APL在时间轴上的变化率,以控制发射亮度控制的跟随性能 在背光上。 此时,确定要显示的图像的类型,并且根据确定的类型改变用于滤波器15上的加权平均的常数,以优化每种类型的显示质量。
    • 6. 发明申请
    • Liquid Crystal Display Apparatus
    • 液晶显示装置
    • US20080231581A1
    • 2008-09-25
    • US11792056
    • 2006-10-16
    • Toshiyuki FujineSeiji Kohashikawa
    • Toshiyuki FujineSeiji Kohashikawa
    • G09G3/36
    • G09G3/3611G09G3/3406G09G2310/04G09G2320/0285G09G2320/062G09G2320/0646G09G2320/0653G09G2320/066G09G2320/0673G09G2340/16G09G2360/16H04N21/42204H04N21/4316H04N21/47
    • A liquid crystal display apparatus enables image display with optimum quality corresponding to the genre of an image to be displayed. The liquid crystal display apparatus controls the emission luminance of a backlight according to the APL of an image signal measured at an APL measuring portion 14. Upon emission luminance control, the display apparatus sets the follow performance of a change of the backlight emission luminance in following a change in a characteristic quantity of the image signal according to a genre so that the display image can be viewed without an odd feeling. Specifically, the APL of the image signal measured at the APL measuring portion 14 is put into a filter 15, and the rate of a change in the APL on the time axis is controlled through weighted averaging to control the follow performance of the emission luminance control on the backlight. At this time, the genre of image to be displayed is determined, and a constant used for weighted averaging on the filter 15 is changed according to the determined genre to optimize display quality for each genre.
    • 液晶显示装置使得能够以与要显示的图像的类型对应的最佳质量的图像显示。 液晶显示装置根据在APL测量部分14测量的图像信号的APL来控制背光的发光亮度。 在发光亮度控制时,显示装置根据类型设置跟随图像信号的特征量的变化的背光发光亮度的变化的跟随性能,从而可以无奇怪地看到显示图像。 具体地说,将在APL测量部分14测量的图像信号的APL放入滤波器15中,通过加权平均来控制APL在时间轴上的变化率,以控制发射亮度控制的跟随性能 在背光上。 此时,确定要显示的图像的类型,并且根据确定的类型改变用于滤波器15上的加权平均的常数,以优化每种类型的显示质量。
    • 8. 发明授权
    • Liquid crystal display apparatus
    • 液晶显示装置
    • US08232956B2
    • 2012-07-31
    • US12064580
    • 2006-10-16
    • Toshiyuki FujineSeiji Kohashikawa
    • Toshiyuki FujineSeiji Kohashikawa
    • G09G3/36
    • G09G3/3406G09G3/3611G09G2310/04G09G2320/0285G09G2320/062G09G2320/0646G09G2320/0653G09G2320/066G09G2320/0673G09G2360/16H04N5/44591H04N21/4318H04N21/44008H04N21/84
    • A video with a display definition most suitable for the type of the video content to be displayed can be displayed. A liquid crystal display apparatus controls the luminance of the backlight light source according to the APL of the video signal measured by an APL measuring portion (16). The range of the video signal the APL of which is measured can be determined by, e.g., the luminance level of the video signal or by the genre information included in the inputted video signal or the OSD display information used when the liquid crystal apparatus (1) performs OSD display. The drawing shows the state that the upper and lower non-video areas are removed and an effective video area is determined. With this, the additional information displayed when the video signal is of a specific genre and the OSD-displayed additional information can be excluded, and the luminance of the backlight light source can be controlled to realize a display definition most suitable for the video signal.
    • 可以显示具有最适合于要显示的视频内容的类型的显示定义的视频。 液晶显示装置根据由APL测量部分(16)测量的视频信号的APL来控制背光光源的亮度。 测量其APL的视频信号的范围可以通过例如视频信号的亮度级别或由输入的视频信号中包含的类型信息或当液晶装置(1)所使用的OSD显示信息 )执行OSD显示。 该图示出了去除上部和下部非视频区域并确定有效视频区域的状态。 由此,可以排除在视频信号为特定类型时显示的附加信息和OSD显示的附加信息,并且可以控制背光光源的亮度,以实现最适合于视频信号的显示定义。
    • 9. 发明申请
    • LIQUID CRYSTAL DISPLAY APPARATUS
    • 液晶显示装置
    • US20090146941A1
    • 2009-06-11
    • US12064580
    • 2006-10-16
    • Toshiyuki FujineSeiji Kohashikawa
    • Toshiyuki FujineSeiji Kohashikawa
    • G09G3/36
    • G09G3/3406G09G3/3611G09G2310/04G09G2320/0285G09G2320/062G09G2320/0646G09G2320/0653G09G2320/066G09G2320/0673G09G2360/16H04N5/44591H04N21/4318H04N21/44008H04N21/84
    • A video with a display definition most suitable for the type of the video content to be displayed can be displayed. A liquid crystal display apparatus controls the luminance of the backlight light source according to the APL of the video signal measured by an APL measuring portion (16). The range of the video signal the APL of which is measured can be determined by, e.g., the luminance level of the video signal or by the genre information included in the inputted video signal or the OSD display information used when the liquid crystal apparatus (1) performs OSD display. The drawing shows the state that the upper and lower non-video areas are removed and an effective video area is determined. With this, the additional information displayed when the video signal is of a specific genre and the OSD-displayed additional information can be excluded, and the luminance of the backlight light source can be controlled to realize a display definition most suitable for the video signal.
    • 可以显示具有最适合于要显示的视频内容的类型的显示定义的视频。 液晶显示装置根据由APL测量部分(16)测量的视频信号的APL来控制背光光源的亮度。 测量其APL的视频信号的范围可以通过例如视频信号的亮度级别或由输入的视频信号中包含的类型信息或当液晶装置(1)所使用的OSD显示信息 )执行OSD显示。 该图示出了去除上部和下部非视频区域并确定有效视频区域的状态。 由此,可以排除在视频信号为特定类型时显示的附加信息和OSD显示的附加信息,并且可以控制背光光源的亮度,以实现最适合于视频信号的显示定义。