導電膜接触形タッチパネルの押圧特性

概要

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The membrane touch panel is gradually becoming more popular and it is necessary that the optimum design based on theoretical analysis is used for developing the high resolution and high reliable touch panel. In this paper, the touch force needed for the sheets of membrane touch panel to come into contact, P_0,is analyzed theoretically using the model of continuous plate supported by array of dot spacers placed at a pitch. As a result, it is shown that the numerical solutions calculated by the deflection equation of the continuous plate model approximately agree with the experimental results. It is also clarified that the touch force P_0 depends on the ratio of spacer height to sheet thickness, the ratio of sheet thickness squared to spacer pitch and the spacer pitch ratio. Moreover, it is found that the touch force P_0 at the neighborhood of lines connecting spacers is corrected effectively using the infinite length band-plate model.
公益社団法人精密工学会の論文
1988-06-05