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11. 发明申请

US20100309107A1 DISPLAY DEVICE 审中-公开
标题翻译：显示设备
公开(公告)号：US20100309107A1
公开(公告)日：2010-12-09
申请号：US12867691
申请日：2008-10-08
申请人： Takao Muroi , Katsuteru Hashimoto , Katsuya Otoi , Kohji Fujiwara
发明人： Takao Muroi , Katsuteru Hashimoto , Katsuya Otoi , Kohji Fujiwara
IPC分类号： G09G3/36
CPC分类号： G09G3/3413 , G02F1/133603 , G02F1/133609 , G02F2001/133601 , G02F2001/133624 , G09G3/3426 , G09G2320/0233 , G09G2320/0242 , G09G2320/064 , G09G2320/0666 , G09G2360/16
摘要： It is an object of the present invention to provide a liquid crystal display device with high color reproduction ability even when an area active backlight is driven. A liquid crystal display device (1) of the present invention drives a liquid crystal panel (2) and a backlight device (3), respectively, using a video signal input from outside. In the backlight device (3), a plurality of illuminating areas (Ha) are set on LED substrates (7) with respect to a plurality of display areas provided on the liquid crystal panel (2), and area active backlight drive is performed, which lights up light-emitting diodes (8) in the unit of the illuminating areas. When a backlight data processing part (lighting control part) (15) determines that a brightness signal value indicated for a blue light-emitting diode (light source of a predetermined color) (8b) is larger than brightness signal values indicated for other light-emitting diodes (8r, 8g), and determines that a value obtained by multiplying the brightness signal value indicated for the blue light-emitting diode (8b) by a predetermined ratio is equal to or more than the bright signal values indicated for the other light-emitting diodes (8r, 8g), the backlight data processing part (15) lights up the other light-emitting diodes (8r, 8g), using the brightness signal value indicated for the blue light-emitting diode (8b).
摘要翻译：本发明的目的是提供一种即使在驱动区域活动背光时也具有高色彩还原能力的液晶显示装置。本发明的液晶显示装置（1）使用从外部输入的视频信号分别驱动液晶面板（2）和背光装置（3）。在背光装置（3）中，相对于设置在液晶面板（2）上的多个显示区域，在LED基板（7）上设置多个照明区域（Ha），进行区域主动背光驱动，其以照明区域为单位照亮发光二极管（8）。背光数据处理部（点亮控制部）15判定为蓝色发光二极管（规定颜色的光源）（8b）指示的亮度信号值大于其他发光二极管发光二极管（8r，8g），并且确定通过将针对蓝色发光二极管（8b）指示的亮度信号值乘以预定比率而获得的值等于或大于针对其他光指示的亮信号值使用为蓝色发光二极管（8b）指示的亮度信号值，背光源数据处理部（15）使发光二极管（8r，8g）照亮其他发光二极管（8r，8g）。

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