An organic electroluminescence display device including a thin film transistor, a first electrode layer, a second electrode layer, and an organic layer. The axle supporting member has a first sensor mounting location, and a first pressure sensor is provided for placement at the first sensor mounting location. The base comprises an upper surface and an opposite lower surface, a pair of ear portions diagonally disposed at opposite ends thereof and extending toward each other, a pair of polarizing keys respectively formed on the upper and the lower surface and arranged in a stagger manner, and a pair of guiding members extending outwardly from the base. Then, transmitting a child device number CID of the user’s own apparatus at the E slot designated by the parent device packet, the user’s own apparatus transmits a connection request to the parent device.