| 摘要 |
A personal mobile terminal including a backlight unit is provided to illuminate buttons by using a backlight unit that emits uniform light, and simply maintain the structure between a key input part and a key input sensor part. A key input part(210) includes a button(215) for a key input and a light transmission unit(216) formed within the button and allowing light to transmit therethrough. A key input sensor unit(230) includes a board positioned at a lower portion of the key input part(210) and having first transmission holes(233) for transmitting light, an electrode(234) formed on the board(232), and a dome switch(236) provided on the board to correspond to the electrode(234). A backlight unit(260) is positioned at a lower portion of the key input sensor unit(230) and irradiates light to the key input part(210) through the first through holes(233). |
