Smartphone

A touch input device capable of detecting a pressure of a touch on a touch surface, the touch input device comprising:

• a substrate;
• and
• a display module,
• wherein a common voltage electrode is disposed within the display module,
• wherein the touch input device further comprises an electrode which is disposed at a position where a distance between the electrode and the common voltage electrode changes according to the touch on the touch surface,
• wherein the distance changes according to a magnitude of the pressure of the touch,
• and wherein an electric signal depending on the distance is outputted from the electrode,
• wherein the electrode is disposed between the display module and the substrate.