| 摘要 |
The present invention relates to a smart card equipped with a solar cell for receiving power, a light emitting diode (LED) for checking the balance of a card, and a speaker for transmitting a sound outwardly through Bluetooth communications with a mobile phone. The smart card comprises a plate; an integrated circuit (IC) chip installed in a predetermined region of the plate and having an IC, a solar cell disposed in a predetermined region of the plate to produce power from external light of the sun, a display device disposed in a predetermined region of the plate and displaying a credit card bill and the balance upon receiving power produced by the solar cell, and left and right speakers disposed on both sides of the plate and delivering a voice displayed in an external terminal outwardly, while performing communications with the external terminal. |
