The study for optimal design of the micro-lens of the optical film for the backlight module of TFT-LCD

• Main Authors: Jyun-An Lin, 林俊安
• Other Authors: Chi-Chang Hsieh
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/40353963656599477818

碩士 === 國立高雄第一科技大學 === 機械與自動化工程研究所 === 99 === Optical film is the key component of backlight module whose the cost must be decreased and thickness be reduced. Therefore the integration multiple levels of optical film becomes the development trend in the future. The study if focused on designing the optical film of TFT-LCD(The-film transistor liquid crystal display) backlight module by innovative micro optical structure. The optical film will be pursued the good light distribution of uniformity and the view angle of luminance enhancement. The design process will use the characteristic of Genetic Algorithm and ray tracing cut out to calculate the optimal relative parameters combination of the new optical film to substitute the traditional multiple crossover prism and diffusion sheets. At the same time changes in various structures and characteristics of induction has also been. Finally the new optical film has achieved the 94.59% light distribution of uniformity and 168 degree of view angle by a 7-inch LED backlight module, and reduced the thickness of traditional multiple films by 66~82%.