| 摘要 |
PURPOSE: A touch panel having a dummy electrode capable of interrupting external noises is provided to shield the infiltration of the external noises by preventing an interference according to external noises. CONSTITUTION: A touch panel includes two substrates(111,112) facing each other, a double-sided insulated adhesive tape(114) to attach the substrates(111,112), and a cable(130) to connect an external circuit electrically. The first transparent conductive film(115) is applied on the lower surface of the upper substrate(111). The first and second electrodes(113a,113b) respectively are applied on both edges of the first transparent conductive film(115) in order to form an equipotential as voltage is supplied. On the lower surface of the lower substrate(112), the second transparent conductive film(125) is applied. On both edges of the second transparent conductive film(125), the third electrode and the fourth electrode respectively are applied in order to form an equipotential as voltage is supplied. Four electrode lead lines(120a-120d) to connect with the first to the fourth electrode(113a,113b) electrically are applied on the edges of the lower substrate(112). These electrode lead lines(120a-120d) are electrically connected with the external circuit through the cable(130). |
