| 摘要 |
PROBLEM TO BE SOLVED: To maintain detection accuracy of a touch, and shorten a touch detection time at each drive electrode.SOLUTION: In the touch detection device having a plurality of scan signal lines and a plurality of pixel signal lines, being laminated on a display device displaying an image in a display area, and detecting a position of an external approach object approaching to a detection surface, the touch detection device has, in a direction orthogonal to the detection surface,: a drive electrode layer that has a plurality of drive electrodes each arranged at a position where at least one of the scan signal line or the pixel signal line is overlapped; a plurality of touch detection electrodes that face the drive electrode, and form an electrostatic capacitance between the touch detection electrode and the drive electrode; a drive electrode driver that applies a drive signal to the drive electrode; and a plurality of pieces of wiring that electrically connect each of the plurality of drive electrodes and a drive circuit to each other. In the drive electrode layer, of the plurality of drive electrodes, an overlapped area where a specific drive electrode with the longest length of the connected wiring is smaller than an average overlapped area of other drive electrodes. |
