| 摘要 |
PURPOSE: A stylus for providing emotion, portable terminal, and content server are provided to offer a learning service according to emotion levels of a user by utilizing emotion information as learning achievement. CONSTITUTION: A emotion stylus(100) includes a voltage control unit(170) and a pixel control unit(180). The voltage control unit controls the power size charged within a portable terminal according to emotion state information. The pixel control unit controls the brightness of a red, a green, and a black pixel according to the controlled power size. The pixel control unit displays the emotion state information on LED(Light Emitting Device). A single color is displayed on the LED according to the emotion state information. |
