In this paper, a transmittance estimator of touch panel decoration film by using neural network is presented. In the evaporation process, the coating material and the related control parameters are all important influencing factors in obtaining the desired transmittance. The relationship among the transmittance and these factors are very complex and nonlinear. It’s very hard to use the certain mathematical model to describe such relationship. In this research, the neural network was employed to catch the relationship among transmittance and its possible influencing factors. In other words, an efficiently and precisely automatic evaporation parameters decision system for touch panel decoration film is expected to be developed. Through the estimation system developed, the quality of transmittance of touch panel film could meet the customer’s requirement.
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