发明名称 BACKLIGHT DEVICE, METHOD FOR CONTROLLING BACKLIGHT AND LIQUID CRYSTAL DISPLAY
摘要 <P>PROBLEM TO BE SOLVED: To prevent unevenness in luminance, when a screen is viewed from an oblique direction. <P>SOLUTION: In a backlight of a liquid crystal display device, a light source control part for controlling the backlight turns on only a center LED chip 174 out of a plurality of divided LED chips 174 so as to emit light at a narrower angle, when necessary backlight luminance BL<SB>i, j</SB>is low backlight luminance and turns on all the LED chips 174 so as to emit light at a wider angle, when the necessary backlight luminance BL<SB>i, j</SB>is high backlight luminance. The present invention can be applied, for example, to a backlight device for the liquid crystal device. <P>COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2008250174(A) 申请公布日期 2008.10.16
申请号 JP20070094004 申请日期 2007.03.30
申请人 SONY CORP 发明人 ITO YASUSHI;HAYASHI MASAYASU;UEDA MITSUNORI;KIMURA KAZUTO
分类号 G09G3/36;F21S2/00;F21Y101/02;G02F1/133;G09G3/20;G09G3/34;H01L33/54;H01L33/56;H05B37/02 主分类号 G09G3/36
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