发明授权
US08400392B2 Apparatus and method for controlling backlight and liquid crystal display
有权
用于控制背光和液晶显示器的装置和方法
- 专利标题： Apparatus and method for controlling backlight and liquid crystal display
- 专利标题（中）： 用于控制背光和液晶显示器的装置和方法
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申请号： US11986135申请日： 2007-11-20
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公开(公告)号： US08400392B2公开(公告)日： 2013-03-19
- 发明人: Kazuto Kimura , Masatake Hayashi , Tomio Aoki , Yoshihiro Katsu , Mitsuyasu Asano
- 申请人： Kazuto Kimura , Masatake Hayashi , Tomio Aoki , Yoshihiro Katsu , Mitsuyasu Asano
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Wolf, Greenfield & Sacks, P.C.
- 优先权： JPJP2006-325781 20061201
- 主分类号： G09G3/36
- IPC分类号： G09G3/36
摘要：
Disclosed is a backlight control apparatus for controlling a backlight used in a liquid crystal display, the backlight having a lighting area that includes a plurality of blocks in each of which a backlight luminance is individually allowed to change. The apparatus includes a backlight control unit that calculates the backlight luminance of each block so that the absolute value of the difference between a backlight lighting ratio and 1 is at or below a first value, and controls the backlight so as to yield the calculated backlight luminances of the respective blocks, the backlight lighting ratio being the ratio between backlight set values of neighboring blocks.
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