According to present invention, system on panel without complicating the process of TFT can be realized, and a light-emitting device that can be formed by lower cost than that of the conventional light-emitting device can be provided. The apparatus includes a pass transistor through which an input voltage is applied, the input voltage varying between a low voltage and a high voltage, and means for selectively varying the gate voltage of the pass transistor when the input voltage is transitioning from the low voltage to the high voltage or from the high voltage to the low voltage. The second lumen is filled with air so that it reflects ultrasound energy and enhances the visibility of the catheter under ultrasound observation. The radio wave also transmits through the reflective part, reflected by the second conductive wall, and transmits through the reflective part to become a second reflected wave in the first space.