The new design with mixing R.G.B. LED(Red,Green,Blue Light EmittingDiode) for modern LCD(Liquid Crystal Displsay ) backlight system

• Main Authors: Che Ming Chang, 張哲銘
• Other Authors: Yi Chin Fang
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/84944219590946823096

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.