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Abstract Basically, backlight module is comprised of CCFL, hot cathode fluorescent tubes, LED, lampshade, reflector, light guide plate, 1-2 diffusion sheets, 1-2 brightness enhancement films, and framework, etc.. LCD monitor not only has its vantages (ex. thinness in shape, light weight, and portability) but also has a lower radiation in comparison with current CRT. In recent years, a rapid increase in demand just proves that LCD monitor can have a central place in the market. As the development of LCD monitor keeps improving over time, backlight module not only need to face the trend of large size and low prices but also concern itself with light-weighting, thin stimming, low power-consumption, high brightness, as well as the reduction in costs because of the market requirements. To maintain the competiveness of the future market, the development of backlight module and LED light bar design should be seen as an important issue to be achieved. Keywords : Liquid Crystal Display, Back Light Module, LED, numerical simulation
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