Abstract
Nichia Corporation promoted the blue light -emitting diode (LED) in 1993, and which blue LED combined yellow phosphor for getting white light from a single LED. So, a single white LED source has been widely used in the market. As the trend of LED applications will be very popular, so that back-light source of these products will be instead of CCFL lighting resource. Such as：mobile phone module 、LCD Monitor, Notebook and even TV. However, improved the point source of LED Light Bar to the semi line light source is a challenge task of this thesis。 In this thesis, the static electricity protection of LED is also another serious issue。 The purpose of this thesis is analysis characteristic and combination for all parts of the light bar, and expect to approach of optimal parameters of components of light bar via practical parameters procedure, design and statistics。
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