Electrostatic capacitance-type sensor-equipped display device and method of driving the same
According to one embodiment, an electrostatic capacitance-type sensor-equipped display device includes a display panel with a display surface which displays an image. The sensor includes a plurality of detection electrodes disposed in a matrix, the detection electrodes being mutually electrically independently provided above the display surface and being configured to detect a variation in electrostatic capacitance, and a plurality of lead lines provided above the display surface, connected to the detection electrodes in a one-to-one correspondence, and formed of a metal.
1. A display device comprising:
a substrate;
a plurality of gate lines extending in a first direction, arranged in a second direction, and formed over the substrate;
a plurality of source lines arranged in the first direction;
a plurality of TFTs connected to the plurality of gate lines and the plurality of source lines;
a plurality of pixel electrodes connected to the plurality of TFTs; and
a plurality of sensor electrodes arranged in the first direction and the second direction,
wherein
the plurality of sensor electrode comprises a first sensor electrode and a second sensor electrode arranged in the second direction,
the first sensor electrode is transparent and overlaps a first pixel electrode of the plurality of pixel electrode,
the second sensor electrode is transparent and overlaps a second pixel electrode of the plurality of pixel electrode,
a first metal line is disposed between the first sensor electrode and the substrate,
a second metal line is disposed between the second sensor electrode and the substrate,
the first metal line and the second metal line are arranged in the first direction,
the first metal line is connected to the first sensor electrode via a first contact hole formed in an insulation layer which is disposed between the plurality of sensor electrodes and the substrate,
the second metal line is connected the second sensor electrode via a second contact hole formed in the insulation layer, and
the first metal line overlaps the second sensor electrode in a plane view.
2. The display device according to claim 1 , wherein the second metal line overlaps the first sensor electrode.
3. The display device according to claim 2 , wherein the first contact hole overlaps the first sensor electrode, and the second contact hole overlaps the second sensor electrode.
4. The display device according to claim 3 , wherein the second contact hole is shifted from the first contact hole in the first direction and the second direction.
5. The display device according to claim 1 , wherein the first contact hole overlaps the first sensor electrode, and the second contact hole overlaps the second sensor electrode.
6. The display device according to claim 2 , wherein the second contact hole is shifted from the first contact hole in the first direction and the second direction.