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    • 7. 发明公开
    • Control method for a backlight arrangement, display controller using this method and display apparatus
    • 装置和方法用于液晶显示器的背光的亮度自动调节
    • EP1455337A1
    • 2004-09-08
    • EP04004243.4
    • 2004-02-25
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Hata, RyoutaIkeda, JunOjima, ShuichiHirashima, TsuyoshiKiuchi, Shinya
    • G09G3/34
    • G09G3/3406G09G3/3611G09G2310/08G09G2320/04G09G2320/041G09G2320/0646G09G2360/16
    • A display controller (10) including a video signal-analyzing unit (100), a video signal-adjusting unit (101) operable to receive a video signal, to adjust the video signal in accordance with adjustment parameter information, and to feed the adjusted video signal into a display device (103), and a light source-controlling unit (102) operable to feed a light source-controlling signal into a light source (104) in accordance with light source light-emitting amount information. The video signal-analyzing unit (100) allows timing in which the display device (103) displays a picture in accordance with the adjusted video signal from the video signal-adjusting unit (101) to be synchronized with timing in which the light source changes a light-emitting amount in response to the light source-controlling signal from the light source-controlling unit(102). As a result, such two different timings are held in a proper relationship with one another, and degradation in image quality is suppressed, which otherwise would result from a change in the light source (104) to become dark and bright. This feature realizes high-quality video display.
    • 显示控制器(10),其包括视频信号分析单元(100),视频信号调节单元(101),可操作以接收视频信号,以调整与调节参数信息雅舞蹈的视频信号,和馈送该调整 视频信号转换成显示装置(103),以及一个光源控制单元(102)可操作以将光源控制信号馈送到在雅舞蹈的光源(104)与光源的发光量的信息。 视频信号分析单元(100)允许定时,其中所述显示装置(103)显示在与从视频信号调节单元(101)的调节后的视频信号雅舞蹈图像以与定时同步,其中所述光源的变化 响应于从所述光源控制单元(102)的光源控制信号的发光量。 其结果,搜索两个不同的定时以彼此正确的关系保持,并且在图像质量劣化被抑制,否则将导致从所述光源(104)的变化,成为暗和亮。 这个功能实现了高品质的视频显示。