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1. 发明专利

JP2010169902A Video display 有权
标题翻译：视频显示
公开(公告)号：JP2010169902A
公开(公告)日：2010-08-05
申请号：JP2009012485
申请日：2009-01-23
申请人： Hitachi Plasma Display Ltd , 日立プラズマディスプレイ株式会社
发明人： NISHIMAKI NORIYUKI , UEDA TOSHIO
IPC分类号： G09G3/20 , G09G3/28 , G09G3/291 , H04N5/66
CPC分类号： H04N5/63 , G09G3/2003 , G09G3/2007 , G09G3/22 , G09G3/28 , G09G2310/0232 , G09G2320/0271 , G09G2330/021 , G09G2360/16
摘要： PROBLEM TO BE SOLVED: To solve the problem that, in a display apparatus such as PDP, for obtaining a bright video while an increase in power consumption is suppressed, the luminance level of a specific area of a display panel is decreased according to the average luminance level of the entire display panel, however, in the case the display image includes low luminance areas and high luminance areas intermingled with each other, even the luminance of a low luminance area is reduced to cause gradation crush.
SOLUTION: The average luminance level of each area is detected, and based on the level of the average luminance level of each area and the luminance level of an input image, a shading process is controlled for each area. If the luminance level of the input image signal is greater than a predetermined threshold as a result of this control, the shading process is performed. If it is smaller than the predetermined threshold, the shading process is stopped.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题为了解决在诸如PDP的显示装置中，为了在抑制功耗增加而获得亮视频的情况下，显示面板的特定区域的亮度水平根据然而，在显示图像包括彼此混合的低亮度区域和高亮度区域的情况下，即使降低亮度区域的亮度也降低了渐变粉碎的情况。解决方案：检测每个区域的平均亮度水平，并且基于每个区域的平均亮度水平和输入图像的亮度水平，对每个区域控制阴影处理。作为该控制的结果，如果输入图像信号的亮度水平大于预定阈值，则执行阴影处理。如果小于预定阈值，则停止阴影处理。版权所有（C）2010，JPO＆INPIT

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