发明名称 LED LIGHTING DEVICE AND DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide an LED lighting device in which when emission luminance of an LED is controlled for each of areas consisting of a plurality of LEDs, loads are dispersed among a plurality of driver circuits for driving the LEDs, thereby restraining a rise of temperature of ICs or semiconductor elements included in the driver circuits.SOLUTION: An LED lighting device is mounted in a display device provided with a local dimming function in which a back light is divided into a plurality of areas and light emission of an LED is controlled for each of the divided areas in accordance with a video signal of each area. The LED lighting device comprises a plurality of LED units 71 and 72 including a plurality of LED elements and a plurality of driver circuits 62 and 63 for driving the LED units 71 and 72. Each of the LED units 71 and 72 is disposed so as to correspond to a predetermined area of a display panel of the display device, and adjacent LED elements in the LED unit corresponding to the predetermined area are connected to different driver circuits to be driven.
申请公布号 JP2013222515(A) 申请公布日期 2013.10.28
申请号 JP20120091606 申请日期 2012.04.13
申请人 SHARP CORP 发明人 ICHIKAWA SHINGO
分类号 H05B37/02;F21S2/00;F21Y101/02;G02F1/133;G02F1/13357 主分类号 H05B37/02
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