Patent ID: 9639223
Date: 2017-05-02
CPC Classifications: G02F,G06F,G09G

Claim:
1. A display device with a touch detection function comprising: a display area that has a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns, in which one of the pixels includes a plurality of sub-pixels that represent mutually different colors and are arrayed in one column with k rows (k is a natural number of 3 or more), and in which arbitrary sub-pixels representing same color among arbitrary pixels that are adjacent to each other in a row direction are arrayed along the row direction; a display function layer that has an image display function for displaying an image in the display area; a pixel electrode that is provided in each of the sub-pixels and supplies an applied voltage to the display function layer by a potential difference with a common potential which is a reference; a plurality of scan lines that extend in the row direction of the display area and scan switching elements of the sub-pixels; a plurality of data lines that extend in a column direction of the display area and supply an applied voltage to the pixel electrodes; a plurality of drive electrodes that are provided facing the pixel electrodes and extend in the row direction; a slit that extends between the drive electrodes in the row direction of the display area, and the slit is provided in a boundary area of the pixels adjacent to each other in the column direction of the display area; an auxiliary wiring that is a wiring of a metal material having an electrical resistance lower than that of a material of the drive electrodes, the auxiliary wiring being arranged along the slit so as to extend in the row direction for each row of the sub-pixels representing the same color and being electrically coupled to a drive electrode, and the auxiliary wiring overlaps with the drive electrode in a vertical direction of a pixel substrate; a control device that performs image display control so as to apply the common potential to the drive electrodes based on an image signal to achieve the image display function of the display function layer, and that performs touch detection control so as to supply a drive signal for touch to the drive electrodes; a touch detection electrode that faces the drive electrodes and forms a capacitance with the drive electrodes; and a touch detection unit that detects a position of a proximity object based on a detection signal sent from the touch detection electrode.