| 摘要 |
A touch detection device includes: a plurality of touch detection electrodes; an operation drive unit configured to apply a touch detection drive signal to a plurality of drive electrodes upon a touch detection operation; and a touch detection unit configured to detect the location of a foreign object that contacts or approaches the touch detection electrodes upon the touch detection operation. The drive electrodes are divided into a plurality of drive signal application blocks. Each of the drive signal application blocks includes three or more drive electrodes electrically connected to one other, and has a drive block overlapped portion on which an arrangement order of the drive electrodes is changed such that an area of at least one of the drive electrodes at an end side in the predetermined direction is swapped for an area of at least one of the drive electrodes in an adjacent drive signal application block at an end side in the predetermined direction. The operation drive unit sequentially applies the touch detection drive signals to the drive signal application blocks, respectively. |
