Display panel and display device
View Patent ↗A display panel and a display device are provided. The display panel includes a touch layer. The touch layer includes: a first insulating layer, a first metal layer patterned to form a first floating electrode, a second floating electrode and a bridging electrode, a second insulating layer, a second metal layer patterned to form a first touch electrode and a second touch electrode, and a passivation layer. The first touch electrode is electrically connected to the bridging electrode through the via. This solves the short circuit and abnormal capacitance issues of the conventional DOT technique and raises the consistency of display content and the product yield.
1. A display panel, comprising a driving circuit layer, a light emitting layer, a package layer, and a touch layer formed on the package layer, wherein the touch layer comprises:
a first insulating layer, formed on the package layer;
a first metal layer, formed on the first insulating layer, patterned to form a first floating electrode, a second floating electrode and a bridging electrode;
a second insulating layer, formed on the first metal layer and covering the first metal layer, wherein the second insulating layer has a via;
a second metal layer, formed on the second insulating layer, patterned to form a first touch electrode and a second touch electrode, wherein the first touch electrode is electrically connected to the bridging electrode through the via, the first touch electrode has a first hallowed area, the second touch electrode has a second hallowed area, a projection of the first hallowed area on the package layer is overlapped with a projection of the first floating electrode on the package layer, and a projection of the second hallowed area on the package layer is overlapped with a projection of the second floating electrode on the package layer; and
a passivation layer, formed on the second metal layer and covering the second metal layer,
wherein the first floating electrode and the second floating electrode comprise a bending identification electrode, wherein the bending identification electrode is distributed in an array.
2. The display panel of claim 1 , wherein the first touch electrode, the second touch electrode, the first floating electrode, the second electrode and the bridging electrode are all in a grid shape, and an area surrounded by a grid corresponds to a pixel unit.
3. The display panel of claim 2 , wherein the first touch electrode comprises a disconnection position, and a projection of the disconnection position on the package layer falls within a projection of the bridging electrode on the package layer.
4. The display panel of claim 1 , comprising a plurality of first touch electrodes and a plurality of second touch electrodes;
wherein the first touch electrodes are connected in series along a first direction and distributed in an array along a second direction, the second touch electrodes extend along the second direction and are equally spaced and distributed along the first direction, and the first direction is vertical to the second direction.
5. The display panel of claim 4 , wherein the first touch electrode is a touch driving electrode, and the second touch electrode is a touch sensing electrode.
6. The display panel of claim 4 , wherein the first touch electrode is a touch sensing electrode, and a second touch electrode is a touch driving electrode.
7. The display panel of claim 1 , wherein the first metal layer further comprises a bending identification wire, and the bending identification wire is connected to the bending identification electrode.
8. The display panel of claim 7 , wherein a projection of the bending identification wire on the package layer falls within a projection of the first touch electrode and the second touch electrode on the package layer.
9. The display panel of claim 1 , wherein the first metal layer and the second metal layer are manufactured with a same material, which comprises one or more of aluminum, copper, silver, molybdenum, titanium, and ITO.
10. A display device comprising a display panel, the display panel comprising a driving circuit layer, a light emitting layer, a package layer, and a touch layer formed on the package layer, wherein the touch layer comprises:
a first insulating layer, formed on the package layer;
a first metal layer, formed on the first insulating layer, patterned to form a first floating electrode, a second floating electrode and a bridging electrode;
a second insulating layer, formed on the first metal layer and covering the first metal layer, wherein the second insulating layer has a via;
a second metal layer, formed on the second insulating layer, patterned to form a first touch electrode and a second touch electrode, wherein the first touch electrode is electrically connected to the bridging electrode through the via, the first touch electrode has a first hallowed area, the second touch electrode has a second hallowed area, a projection of the first hallowed area on the package layer is overlapped with a projection of the first floating electrode on the package layer, and a projection of the second hallowed area on the package layer is overlapped with a projection of the second floating electrode on the package layer; and
a passivation layer, formed on the second metal layer and covering the second metal layer,
wherein the first floating electrode and the second floating electrode comprise a bending identification electrode, wherein the bending identification electrode is distributed in an array.
11. The display device of claim 10 , wherein the first touch electrode, the second touch electrode, the first floating electrode, the second electrode and the bridging electrode are all in a grid shape, and an area surrounded by a grid corresponds to a pixel unit.
12. The display device of claim 11 , wherein the first touch electrode comprises a disconnection position, and a projection of the disconnection position on the package layer falls within a projection of the bridging electrode on the package layer.
13. The display device of claim 10 , wherein the display panel comprises a plurality of first touch electrodes and a plurality of second touch electrodes;
wherein the first touch electrodes are connected in series along a first direction and distributed in an array along a second direction, the second touch electrodes extend along the second direction and are equally spaced and distributed along the first direction, and the first direction is vertical to the second direction.
14. The display device of claim 13 , wherein the first touch electrode is a touch driving electrode, and the second touch electrode is a touch sensing electrode.
15. The display device of claim 13 , wherein the first touch electrode is a touch sensing electrode, and a second touch electrode is a touch driving electrode.
16. The display device of claim 10 , wherein the first metal layer further comprises a bending identification wire, and the bending identification wire is connected to the bending identification electrode.
17. The display device of claim 16 , wherein a projection of the bending identification wire on the package layer falls within a projection of the first touch electrode and the second touch electrode on the package layer.
18. The display device of claim 10 , wherein the first metal layer and the second metal layer are manufactured with a same material, which comprises one or more of aluminum, copper, silver, molybdenum, titanium, and ITO.