| Summary: | 碩士 === 中華大學 === 機械工程學系碩士班 === 102 === This study is based on the techniques of laser modulation. We use neodymium-doped yttrium aluminum garnet laser （Nd： YAG laser） as a seed laser and many kinds of frequency doubling crystals such as KTP and BBO, to achieve multi-wavelength laser output. By this way, we can repair the defective parts of the film transistor Liquid Crystal Display （Thin Film Transistor Liquid Crystal Display，TFT-LCD）during the panel manufacturing process. Then, we can improve the yields and reduce the losses of the scrap.
I In this study, Nd：YAG laser system is the main experimental architecture. It is combined with the optical and electrical system integration by the wavelength modulation and pulse width modulation. To set up the laser, which can correspond to various defects of TFT manufacturing process and repaire highligh to dark spots, we use the measured instrument which can measure the quality of beams and the power of energy to analyze the parameters accurately. Therefore, we can verify the demanded laser from setting up the system, the modulation of mechatronics of peripheral light, and tuning the path of laser to repair TFT surface.
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