The present invention relates to a back light (Back Light) module of the LCD (liquid crystal display device, Liquid Crystal Display) using the LED, relates to an LCD backlight module, energy efficient, with excellent and long-life LED.; The present invention, in the LCD backlight module of the LCD panel is located on the back of the light source unit including a LED; A light guide plate for distributing the light (光) generated from said light source means; A diffusion plate to uniformly distribute the light passing through the light guide panel; A prism for guiding the light from the diffuser plate into the certain area of the LCD panel; And a fluorescent material contained in the light guide plate, a diffusion plate, at least one of a prism; to provide a backlit LCD module using an LED for converting the light generated by the white light from the light source means comprises a.; Therefore, this, according to such the present invention, by generating the light of simply required color by changing the coloring material fluorescence and size reduction, higher efficiency is possible compared with a conventional light source (光源), and improve the durability, more simple structure backlight module the effect can be obtained to provide.
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