Abstract
LCD and edge backlight light guide panel (LGP) are one of the main parts of handset or mobile phone et al. The design of LGP is vital technique to the design of backlight module. The aim of this paper is to design a handset LGP with LED as the light source. Three design qualifications are simulated and analyzed with ASAP software. The three qualifications are rough surface, diffusion-dots and microstructure. The analysis result shows that the factor of diffusion-dots is the most important ingredient. The surface brightness, the luminance distribution and the light efficiency of LGP are determined by the density of diffusion dots. The total light loss is also affected by the factor of diffusion-dots to the LGP whose diffusion dots are printed. A handset LGP is designed according to the research in the paper. The simulation result is satisfying as good as the practical outcome. The paper is useful to increase the brightness and uniformity of handset LCD.
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