| Summary: | 碩士 === 國立高雄第一科技大學 === 光電工程研究所 === 94 === ABSTRACT
LED(Light Emitting Diode) backlight module for LCD(Liquid Crystal Displsay )
backlight system has its advantages of color saturation, electricity savings and
environmental frienldiness,etc. However , white LED(Light Emitting Diode) is not
popular and widely used at this moment due to blue light spectrum weights most of all over
spectrum range, which degrade color saturation. Therefore, R.G.B LED(Red,Green,Blue
Light Emitting Diode) light source plays significant role at modern LCD(Liquid Crystal
Displsay ) backlight system.
The paper proposes a newly developed light source module with mixing R.G.B.
LED(Red,Green,Blue Light Emitting Diode) for modern LED(Light Emitting Diode)
backlight system instead of white light LED(Light Emitting Diode) and traditional CCFL
（Cold Cathode Fluorescent Lamp）. . This system consists of three parts, a newly designed
symmetric mirror for complete color mixing, R.G. B LED(Red,Green,Blue Light Emitting
Diode) light source and diffusion plate with newly designed microstructure for the
improvement of light uniformity.
The light module is designed and simulated by ASAP (Advanced Systems Analysis
Program), in which a sample with 160mm×90mm( around 7 inch pane) are presented with
sixteen LEDs light source. Good color saturation and excellent light uniformity are reached
in this research. According to the result of the final simulation, we doesn’t need the light
guide . We can get 75% Uniformity.
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