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This research is mainly to analysis the parameters of the micro compression injector that control the quality of the small scale TFT-LCD back light mould. By this analysis, we hope that the finished product can have high quality shape, and high percentage good product rate. LCD itself cannot display light, unless using the help of the group of back light mould, so the quality of board will influence the display quality of LCD directly. We first use “Rhinoceros” to arrange the mesh of the sample, the net of cool water course, the mesh of mould flat, and to check the quality of the mesh. We also utilize moldex 3D to imitate the injecting machine including the following parameters, cooling time, the temperature of mould, the temperature of materials, flow rate, injecting pressure, maintained pressure , time of maintained pressure and also the thermal stress, to study the influence for the finished products.
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