| 摘要 |
PURPOSE: A key input device and a personal portable terminal are provided to sense pressing pressure of a key button unit by pressure sensing unit and to input a key, thereby realizing the key input device of a flat structure. CONSTITUTION: An electrode substrate unit(140) is arrange on one side of a key button unit(130). An electrode substrate unit forms an electrode pattern on a surface opposite to the surface which contracts with the key button unit. A base substrate unit(160) is adhered on one side of the electrode substrate unit. A pressure sensor unit(170) neighbors with the electrode pattern. The pressure sensing unit is printed on one side of the base substrate unit. By pressure pressing the key button unit, the pressure sensing unit is contracted with the electrode pattern. |
