Touch sensor substrate and display apparatus having the touch sensor substrate
A touch sensor substrate includes a base substrate, a first touch sensor part that is disposed on the base substrate and includes a plurality of sensing circuits configured to sense a touch in an electromagnetic induction mode and a second touch sensor part that is disposed on the base substrate, is electrically insulated to the first touch sensor part, and comprises a plurality of sensing electrodes configured to sense a touch in a self capacitance mode.
1. A touch sensor substrate comprising:
a base substrate;
a first touch sensor part that is disposed on the base substrate and comprising a plurality of sensing circuits configured to sense a touch in an electromagnetic induction mode; and
a second touch sensor part that is disposed on the base substrate, is electrically insulated from the first touch sensor part, and comprising a plurality of sensing electrodes configured to sense a touch in a self capacitance mode,
wherein the first touch sensor part comprises a first sensing circuit including a first sensing line and a second sensing line that extend in the first direction, the first sensing line is disposed between two rows of adjacent sensing electrodes arranged in the first direction without overlapping with a sensing electrode, and the second sensing line overlaps with the sensing electrodes arranged in the first direction, and
wherein the first touch sensor part further comprises a second sensing circuit including a fourth sensing line and a fifth sensing line that extend in the second direction, the fourth sensing line is disposed between two columns of adjacent sensing electrodes arranged in the second direction without overlapping with a sensing electrode, and the fifth sensing line overlaps with the sensing electrodes arranged in the second direction.
2. The touch sensor substrate of claim 1 , wherein the second touch sensor part further comprises a plurality of signal lines connected to the sensing electrodes.
3. The touch sensor substrate of claim 2 , wherein the signal lines extend from the sensing electrodes, respectively.
4. The touch sensor substrate of claim 2 , further comprising:
an insulating layer that is disposed between the signal lines and the sensing electrodes,
wherein the signal lines are connected to the sensing electrodes through a plurality of contact holes formed in the insulating layer.
5. The touch sensor substrate of claim 1 , wherein each of the first and second sensing circuits has a closed-loop structure.
6. The touch sensor substrate of claim 1 , wherein the second sensing line and the fifth sensing line overlap with each other at a center portion of a sensing electrode.
7. The touch sensor substrate of claim 1 , wherein each of the sensing electrodes comprises a first sub electrode, a second sub electrode being spaced apart from the first sub electrode and a connection electrode connecting the first and second sub electrodes, and the first touch sensor part is disposed in a spacing area between the first and second sub electrodes.
8. The touch sensor substrate of claim 1 , further comprising:
a blocking layer that blocks a magnetic field formed by the first touch sensor part from being leaked.
9. The touch sensor substrate of claim 8 , wherein the blocking layer is disposed on the base substrate and the first and second touch sensor parts are disposed on the blocking layer.
10. The touch sensor substrate of claim 8 , wherein the base substrate comprises a first surface and a second surface opposite the first surface,
the first and second touch sensor parts are disposed on the first surface, and the blocking layer is disposed on the second surface.
11. A display apparatus comprising:
a display panel that comprises a plurality of pixel transistors and a plurality of display elements driven by the plurality of pixel transistors;
a cover member that is disposed on a first surface of the display panel configured to display an image using the plurality of display elements;
a touch sensor substrate that is disposed adjacent to a second surface opposite to the first surface of the display panel, and comprises a base substrate, a first touch sensor part that is disposed on the base substrate and comprises a plurality of sensing circuits sensing a touch in an electromagnetic induction mode, and a second touch sensor part that is disposed on the base substrate, is electrically insulated from the first touch sensor part, and comprises a plurality of sensing electrodes sensing a touch in a self capacitance mode,
wherein the first touch sensor part comprises a first sensing circuit including a first sensing line and a second sensing line that extend in the first direction, the first sensing line is disposed between two rows of adjacent sensing electrodes arranged in the first direction, and the second sensing line overlaps with the sensing electrodes arranged in the first direction, and
wherein the first touch sensor part further comprises a second sensing circuit including a fourth sensing line and a fifth sensing line that extend in the second direction, the fourth sensing line is disposed between two columns of adjacent sensing electrodes arranged in the second direction, and the fifth sensing line overlaps with the sensing electrodes arranged in the second direction.
12. The display apparatus of claim 11 , wherein the second touch sensor part further comprises a plurality of signal lines connected to the sensing electrodes.
13. The display apparatus of claim 12 , wherein the signal lines extend from the sensing electrodes, respectively.
14. The display apparatus of claim 12 , further comprising:
an insulating layer that is disposed between the signal lines and the sensing electrodes,
wherein the signal lines are connected to the sensing electrodes through a plurality of contact holes formed in the insulating layer.
15. The display apparatus of claim 11 , wherein each of the first and second sensing circuits has a closed-loop structure.
16. The display apparatus of claim 11 , wherein the second sensing line and the fifth sensing line overlap with each other at a center portion of a sensing electrode that are arranged in the second direction.
17. The display apparatus of claim 11 , wherein each of the sensing electrodes comprises a first sub electrode, a second sub electrode being spaced apart from the first sub electrode and a connection electrode connecting the first and second sub electrodes, and
the first touch sensor part is disposed in a spacing area between the first and second sub electrodes.
18. The display apparatus of claim 11 , further comprising:
a blocking layer that blocks a magnetic field formed by the first touch sensor part from being leaked.
19. The display apparatus of claim 18 , wherein the blocking layer is disposed on the base substrate, and
the first and second touch sensor parts are disposed on the blocking layer.
20. The display apparatus of claim 18 , wherein the base substrate comprises a first surface and a second surface opposing the first surface,
the first and second touch sensor parts are disposed on the first surface, and the blocking layer is disposed on the second surface.