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    • 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。
    • 7. 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。
    • 9. 发明授权
    • Image display apparatus
    • 图像显示装置
    • US08269802B2
    • 2012-09-18
    • US12667024
    • 2008-03-11
    • Toshiyuki FujineMichiyuki SuginoTakashi KandaEishi OdaMasahiro Okui
    • Toshiyuki FujineMichiyuki SuginoTakashi KandaEishi OdaMasahiro Okui
    • G09G5/00
    • H04N5/58G09G5/00G09G5/003G09G2320/0606G09G2320/0693G09G2330/026G09G2360/144H04N5/57H04N21/42202H04N21/431H04N21/4318H04N21/4758H04N21/485
    • In general, when a user views an image displayed on a display apparatus, visual environments, such as ambient brightness, a distance from the user to the display apparatus and so on, may disadvantageously cause the image displayed on the display apparatus to become difficult to view. Moreover, it is complicated and troublesome for the user to enter information of ambient light amount and others when setting a picture quality. An image display apparatus holds both question constituent information related to visual environments and choice information serving as answers to questions constituted by the question constituent information, and further holds a plurality of picture quality control rules suitable for visual environments assumed in accordance with the choice information serving as the answers. When sensing a power-up, the image display apparatus outputs the questions; acquires result information that is choices serving as answers from the user to those questions and that is used to acquire the picture quality control rules; and controls the picture quality in accordance with the picture quality control rules acquired in accordance with the result information.
    • 通常,当用户观看显示装置上显示的图像时,诸如环境亮度,从用户到显示装置的距离等视觉环境等可能不利地导致显示装置上显示的图像变得难以 视图。 此外,当设置图像质量时,用户输入环境光量的信息等是复杂和麻烦的。 图像显示装置保持与视觉环境有关的问题构成信息和用作由问题构成信息构成的问题的答案的选择信息,并且还保持适合于根据选择信息服务而假定的视觉环境的多个图像质量控制规则 作为答案。 当感测到上电时,图像显示装置输出问题; 将作为用户的答案的结果信息作为这些问题获取并用于获取图像质量控制规则; 并且根据根据结果信息获取的图像质量控制规则来控制图像质量。
    • 10. 发明申请
    • IMAGE DISPLAY APPATAUS
    • 图像显示APPATAUS
    • US20100182350A1
    • 2010-07-22
    • US12667024
    • 2008-03-11
    • Toshiyuki FujineMichiyuki SuginoTakashi KandaEishi OdaMasahiro Okui
    • Toshiyuki FujineMichiyuki SuginoTakashi KandaEishi OdaMasahiro Okui
    • G09G5/10
    • H04N5/58G09G5/00G09G5/003G09G2320/0606G09G2320/0693G09G2330/026G09G2360/144H04N5/57H04N21/42202H04N21/431H04N21/4318H04N21/4758H04N21/485
    • In general, when a user views an image displayed on a display apparatus, visual environments, such as ambient brightness, a distance from the user to the display apparatus and so on, may disadvantageously cause the image displayed on the display apparatus to become difficult to view. Moreover, it is complicated and troublesome for the user to enter information of ambient light amount and others when setting a picture quality. An image display apparatus holds both question constituent information related to visual environments and choice information serving as answers to questions constituted by the question constituent information, and further holds a plurality of picture quality control rules suitable for visual environments assumed in accordance with the choice information serving as the answers. When sensing a power-up, the image display apparatus outputs the questions; acquires result information that is choices serving as answers from the user to those questions and that is used to acquire the picture quality control rules; and controls the picture quality in accordance with the picture quality control rules acquired in accordance with the result information.
    • 通常,当用户观看显示装置上显示的图像时,诸如环境亮度,从用户到显示装置的距离等视觉环境等可能不利地导致显示装置上显示的图像变得难以 视图。 此外,当设置图像质量时,用户输入环境光量的信息等是复杂和麻烦的。 图像显示装置保持与视觉环境有关的问题构成信息和用作由问题构成信息构成的问题的答案的选择信息,并且还保持适合于根据选择信息服务而假定的视觉环境的多个图像质量控制规则 作为答案。 当感测到上电时,图像显示装置输出问题; 获取作为来自用户的答案的结果信息到这些问题,并且用于获取图像质量控制规则; 并且根据根据结果信息获取的图像质量控制规则来控制图像质量。