Display with in-cell touch sensor
The present invention discloses a display with in-cell touch sensors comprising a first substrate, a second substrate, and a touch sensor disposed on the second substrate. A thin-film transistor (TFT) array is disposed on a surface of the first substrate, and a color pixel array is disposed on a surface of the second substrate. The TFT array faces and is aligned with the color pixel array. The touch sensor comprises a plurality of electrodes, a plurality of first leads, and a plurality of first pads. Each of the first leads is connected to one of the electrodes and one of the first pads. There are a plurality of second pads, a plurality of second leads, a plurality of connecting wires, and a plurality of terminal pads. Each of the second leads connects one of the second pads and one of the connecting wires. At least one of the connecting wires simultaneously and electrically connects several of the second leads. Each of the connecting wires electrically connects at least one of the terminal pads. Each of the first pads electrically connects one of the second pads.
1. A display with in-cell touch sensor, comprising:
a first substrate, wherein a transistor array is disposed on a surface of the first substrate;
a second substrate, wherein a color pixel array is directly disposed on a surface of the second substrate, and the color pixel array faces and is aligned with the transistor array;
a touch sensor, directly disposed on an inner surface of the second substrate and comprising a plurality of electrodes, a plurality of first leads and a plurality of first pads, wherein each of the first leads is connected to one of the electrodes and one of the first pads, wherein the inner surface faces the transistor array; and
a connecting circuit, disposed on the first substrate and comprising a plurality of second pads, a plurality of second leads and a plurality of connecting wires, wherein each of the second leads is connected to one of the second pads and one of the connecting wires, and at least one of the connecting wires is electrically connected to several of the second leads;
wherein each of the first pads is electrically connected to one of the second pads.
2. The display with in-cell touch sensor of claim 1 , wherein the connecting circuit further comprises a plurality of terminal pads, and each of the connecting wires is electrically connected to at least one of the terminal pads.
3. The display with in-cell touch sensor of claim 1 , further comprising a surrounding circuit disposed surrounding the plurality of electrodes to function as a protection circuit, a shielding circuit or reference electrode.
4. The display with in-cell touch sensor of claim 3 , wherein the surrounding circuit comprises a first conductive wire surrounding the outer side of the plurality of first pads and the plurality of electrodes and a plurality of second conductive wires located at both sides of the plurality of electrodes.
5. The display with in-cell touch sensor of claim 1 , wherein each of the electrodes is a conductive wire arranged in grid manner, and the conductive wire is aligned with the interval of the color pixel array and is disposed on the second substrate.
6. The display with in-cell touch sensor of claim 1 , wherein the plurality of electrodes comprise a plurality of first electrodes extending along a first direction and a plurality of second electrodes aligned along a second direction.
7. The display with in-cell touch sensor of claim 1 , wherein the plurality of second leads are isolated from the plurality of connecting wires by at least an insulation layer, a plurality of vias filled with metal or conductive materials are formed in the at least an insulation layer, and at least one of the connecting wires is electrically connected to several of the second leads through the plurality of vias.
8. The display with in-cell touch sensor of claim 1 , wherein the transistor array comprises at least two metal layers, the plurality of second leads are in one metal layer, and the plurality of connecting wires are in another metal layer.
9. A display with in-cell touch sensor, comprising:
a first substrate, wherein a transistor array is disposed on a surface of the first substrate;
a second substrate, wherein a color pixel array is directly disposed on a surface of the second substrate, a polarizer is disposed on the other surface of the second substrate, and the color pixel array faces and is aligned with the transistor array;
a touch sensor, directly disposed on an inner surface of the second substrate and comprising a plurality of electrodes, a plurality of first leads and a plurality of first pads, wherein each of the first leads is connected to one of the electrodes and one of the first pads; and
a connecting circuit comprising a plurality of second pads, a plurality of second leads and a plurality of connecting wires, wherein each of the second leads is connected to one of the second pads and one of the connecting wires, and at least one of the connecting wires is electrically connected to several of the second leads, wherein each of the first pads is electrically connected to one of the second pads wherein the connecting circuit is disposed on an inner surface of the first substrate, and the inner surface of the first substrate faces the color pixel array on the second substrate.
10. The display with in-cell touch sensor of claim 9 , further comprising a surrounding circuit disposed surrounding the plurality of electrodes and the first pads to function as a protection circuit, a shielding circuit or reference electrode.
11. The display with in-cell touch sensor of claim 9 , wherein each of the electrodes is a conductive wire arranged in grid manner.
12. The display with in-cell touch sensor of claim 9 , wherein the plurality of electrodes comprise a plurality of first electrodes extending along a first direction and a plurality of second electrodes aligned along a second direction.