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    • 4. 发明申请
    • Area lighting device and liquid crystal display device having the same
    • 区域照明装置和具有该照明装置的液晶显示装置
    • US20060214905A1
    • 2006-09-28
    • US11374785
    • 2006-03-14
    • Susumu Okazaki
    • Susumu Okazaki
    • G09G3/36
    • G09G3/3406G09G3/3611G09G2320/041G09G2320/043G09G2360/145
    • The invention relates to an area lighting device using an LED as a light source and a liquid crystals display having the same. An object is to provide an area lighting device which can provide stable display quality and a liquid crystal display device having the same. An area lighting device is configured to have a light source part provided with a plurality of LEDs; a dummy liquid crystal panel which has a pair of substrates and a liquid crystal layer encapsulated between the substrates, and to which light from the light source part partially enters; a chromaticity sensor which senses a chromaticity of light transmitted through the dummy liquid crystal panel; and an LED control part which compares the sensed chromaticity with a set target value, and controls the plurality of the LEDs so that the chromaticity becomes close to the target value.
    • 本发明涉及使用LED作为光源的区域照明装置和具有该区域照明装置的液晶显示器。 本发明的目的是提供一种能够提供稳定的显示质量的区域照明装置和具有该区域照明装置的液晶显示装置。 区域照明装置被配置为具有设置有多个LED的光源部; 虚拟液晶面板,其具有一对基板和液晶层,该液晶层封装在基板之间,并且来自光源部分的光部分入射; 感测透过虚拟液晶面板的光的色度的色度传感器; 以及LED控制部,其将感测色度与设定的目标值进行比较,并且控制多个LED使得色度变得接近目标值。