Patent ID: 9292126
Filing Date: 2016-03-22
CPC Classification: G02B,G06F

Claim Text:
1. A display device with a touch detection function comprising: a variable focus lens unit that includes a display unit that is arranged to face the variable focus layer and that includes a display region that displays an image via the variable focus lens unit; a drive electrode that is divided into a plurality of pieces and that is arranged in the display unit or at a position opposed to the display region, an AC rectangular wave being applied to the drive electrode by an AC signal source; and a touch detection unit configured to detect a position of a proximity object using one of the first electrode and the second electrode as a touch detection electrode based on a touch detection signal according to a change in capacitance formed between the drive electrode and the touch detection electrode, the touch detection signal being formed based on a current that is generated on the touch detection electrode in response to the AC rectangular wave and is output from the touch detection electrode.