Touch panel and method for manufacturing the same
A method for manufacturing a touch panel includes the following steps. A plurality of first sensing electrodes and a plurality of second sensing electrodes are formed on the first substrate. A first insulator layer is formed to cover the first sensing electrodes and the second sensing electrodes. Holes are formed in the first insulator layer, in which a portion of the first sensing electrodes is exposed through the holes. A conductive layer is formed on the first insulator layer and in the holes. The conductive layer is patterned to form a bridge electrode and a shield electrode. The bridge electrode is electrically connected to the first sensing electrodes through the holes. A vertical projection of the shield electrode on the first substrate at least overlaps with a vertical projection of at least one of the first sensing electrodes and the second sensing electrodes on the first substrate.
1. A touch panel, comprising:
a first substrate;
a first touch sensing electrode, disposed above the first substrate;
a second touch sensing electrode, disposed above the first substrate and separated from said first touch sensing electrode;
a first insulator layer, disposed above said first touch sensing electrode and said second touch sensing electrode;
a first shield electrode, electrically grounded and disposed above said first insulator layer aligned with first touch sensing electrode;
a second shield electrode, electrically grounded, disposed above said first insulator layer aligned with second touch sensing electrode, and separated from said first shield electrode;
a second insulator layer, disposed above said first shield electrode and said second shield electrode; and
a display electrode layer, disposed above said second insulator layer;
wherein a vertical projection of the first sensing electrode on the display electrode layer lies entirely within a vertical projection of the first shield electrode on the display electrode layer, and a vertical projection of the second sensing electrode on the display electrode layer lies entirely within a vertical projection of the second shield electrode on the display electrode layer.
2. The touch panel according to claim 1 , further comprising:
a third touch sensing electrode, disposed above the first substrate; and
a bridge electrode, disposed above said first insulator layer separated from said first shield electrode and said second shield electrode;
wherein said bridge electrode electrically connects to said first touch sensing electrode to said third touch sensing electrode though holes in the first insulator layer.
3. The touch panel according to claim 1 , further comprising:
a light shielding layer, comprising:
light shielding portions, defining pixel regions;
wherein said vertical projection of the first sensing electrode on the display electrode layer lies entirely within a vertical projection of a first light shielding portion of said light shielding portions on the display electrode layer, and said vertical projection of the second sensing electrode on the display electrode layer lies entirely within a vertical projection of a second light shielding portion of said light shielding portions on the display electrode layer.
4. The touch panel according to claim 3 , further comprising:
a third touch sensing electrode, disposed above the first substrate;
a bridge electrode, disposed above said first insulator layer separated from said first shield electrode and said second shield electrode;
wherein said bridge electrode electrically connects to said first touch sensing electrode to said third touch sensing electrode though holes in the first insulator layer.
5. The touch panel according to claim 4 , further comprising:
a dummy electrode, disposed on a third light shielding portion of said light shielding portions, wherein a vertical projection of the dummy electrode on the display electrode layer lies entirely within a vertical projection of the third light shielding portion of said light shielding portions on the display electrode layer.