发明授权
- 专利标题: Image display device and image display method
- 专利标题(中): 图像显示装置和图像显示方法
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申请号: US12997645申请日: 2009-06-04
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公开(公告)号: US08390656B2公开(公告)日: 2013-03-05
- 发明人: Takao Muroi , Kohji Fujiwara , Takayuki Murai
- 申请人: Takao Muroi , Kohji Fujiwara , Takayuki Murai
- 申请人地址: JP Osaka
- 专利权人: Sharp Kabushiki Kaisha
- 当前专利权人: Sharp Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Birch, Stewart, Kolasch & Birch, LLP
- 优先权: JP2008-174392 20080703
- 国际申请: PCT/JP2009/060230 WO 20090604
- 国际公布: WO2010/001681 WO 20100107
- 主分类号: G09G5/10
- IPC分类号: G09G5/10 ; G09G3/36
摘要:
There is provided an image display device capable of suppressing the occurrence of a color shift while ensuring a sufficient color reproduction range. An in-area maximum luminance obtaining unit (151) divides an input image (31) into a plurality of areas and obtains, for each of RGB colors, a maximum luminance value (34) in each area. A weighting coefficient calculating unit (152) obtains the maximum luminance values (34) for the respective RGB colors for all of the areas, and determines weighting coefficients (35) which are required upon an LED luminance adjustment process, based on an mean value of the maximum luminances values (34) for each color. An LED luminance adjusting unit (153) adjusts the luminances of respective RGB color LEDs in each area to suppress the occurrence of a color shift, based on the maximum luminance values (34) obtained by the in-area maximum luminance obtaining unit (151) and the weighting coefficients (35) determined by the weighting coefficient calculating unit (152).
公开/授权文献
- US20110090265A1 IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD 公开/授权日:2011-04-21
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