Push-button switch member, portable information terminal having push-button switch member and payment system using portable information terminal

摘要

A push-button switch member comprises a touch panel having at least one push-button switch, an electronic display disposed in operative association with the push-button switch, and at least one key top portion disposed in operative association with the push-button switch. The key top portion is provided with a functional display of the push-button switch. A portable information terminal is provided with such push-button switch member and a communicator operatively connected to the push-button switch member for communicating with other equipment having a communication function through endless interactive communication. When the portable information terminal approaches the other equipment having the function communicating with the portable information terminal, functional display information stored in the other equipment is inputted into the portable information terminal through the interactive communication.