Display device including a touch sensor
View Patent ↗A display device includes: a first insulation substrate having an upper surface and a lower surface; a transparent conductive layer disposed on the upper surface of the first insulation substrate; a gate line disposed on the lower surface of the first insulation substrate; a gate insulating layer disposed on the gate line; a semiconductor layer disposed on the gate insulating layer; a data line disposed on the semiconductor layer and connected to a source electrode and a drain electrode facing the source electrode; and a pixel electrode electrically connected to the drain electrode, where the gate line, the gate insulating layer, the semiconductor layer and the data line are sequentially disposed on the lower surface of the first insulation substrate.
1. A display device comprising:
a first insulation substrate having an upper surface and a lower surface;
a transparent conductive layer disposed on the upper surface of the first insulation substrate;
a gate line disposed on the lower surface of the first insulation substrate, and including a gate electrode protruded from the gate line;
a gate insulating layer disposed on the gate line;
a semiconductor layer disposed on the gate insulating layer;
a data line disposed on the semiconductor layer and connected to a source electrode and a drain electrode facing the source electrode; and
a pixel electrode electrically connected to the drain electrode,
wherein
the gate line, the gate insulating layer, the semiconductor layer and the data line are sequentially disposed on the lower surface of the first insulation substrate,
the transparent conductive layer includes a first region and a second region,
the first region of the transparent conductive layer overlaps the gate electrode, and
the second region of the transparent conductive layer is adjacent to the gate electrode and not overlapping the gate electrode.
2. The display device of claim 1 , wherein
a capacitance is generated between the transparent conductive layer and the gate line such that a touch sensor is collectively defined by the transparent conductive layer and the gate line.
3. The display device of claim 2 , wherein
the transparent conductive layer extends in a direction crossing the gate line.
4. The display device of claim 3 , wherein
the gate line extends in a transverse direction.
5. The display device of claim 1 , wherein
a width of the first region is less than a width of the second region.
6. The display device of claim 5 , wherein
the second region of the transparent conductive layer surrounds at least a portion of the gate electrode in a top plan view.
7. The display device of claim 6 , further comprising:
a common electrode disposed in a layer, in which the gate line is disposed,
wherein the common electrode and the transparent conductive layer are overlapping each other.
8. The display device of claim 1 , further comprising:
a polarizer disposed on the transparent conductive layer.
9. The display device of claim 1 , further comprising:
a second insulation substrate disposed opposite to the first insulation substrate; and
a liquid crystal layer disposed between the first insulation substrate and the second insulation substrate.
10. A display device comprising:
a first insulation substrate having an upper surface and a lower surface;
a plurality of transparent conductive layers disposed on the upper surface of the first insulation substrate;
a plurality of gate lines disposed on the lower surface of the first insulation substrate, and including a plurality of gate electrodes protruded from the plurality of gate lines;
a gate insulating layer disposed on the plurality of gate lines;
a semiconductor layer disposed on the gate insulating layer; and
a plurality of data lines disposed on the semiconductor layer,
wherein the gate insulating layer, the semiconductor layer, the plurality of data lines and the plurality of gate lines are sequentially disposed on the lower surface of the first insulation substrate,
wherein the plurality of transparent conductive layers and the plurality of gate lines collectively define a touch sensor unit, and
wherein
the plurality of transparent conductive layers are connected to each other in parallel in the touch sensor unit,
the plurality of transparent conductive layers each include a first region and a second region,
the first region overlaps a corresponding gate electrode of the plurality of gate electrodes, and
the second region is adjacent to the corresponding gate electrode and not overlapping the corresponding gate electrode.
11. The display device of claim 10 , wherein
the touch sensor unit comprises a plurality of touch sensors, and
a capacitance is generated between a transparent conductive layer of the plurality of transparent conductive layers and a gate line of the plurality of gate lines such that the transparent conductive layer and the gate line collectively defines a touch sensor of the plurality of touch sensors.
12. The display device of claim 11 , wherein
the transparent conductive layer extends in a direction crossing the gate line.
13. The display device of claim 12 , wherein
the gate line extends in a transverse direction.
14. The display device of claim 11 , wherein
a width of the first region is less than a width of the second region.
15. The display device of claim 14 , wherein
the second region of the transparent conductive layer surrounds at least a portion of the gate electrode in a top view.
16. The display device of claim 15 , further comprising:
a common electrode disposed in a layer, in which the gate line is disposed,
wherein the common electrode is crossing the transparent conductive layer.
17. The display device of claim 10 , further comprising:
a polarizer disposed on the plurality of transparent conductive layers.
18. The display device of claim 10 , wherein
a plurality of touch sensor units is provided along a column direction.
19. The display device of claim 11 , wherein
the touch sensor unit comprises a connection connected to an end of each of the plurality of transparent conductive layers.