A display panel is provided. A touch layer includes touch electrodes arranged along a first direction and a second direction. A demultiplexing circuit group includes a demultiplexing circuit corresponding to each touch electrode. The multiple demultiplexing circuits in the demultiplexing circuit group are arranged along the first direction and the second direction according to the multiple touch electrodes. Thereby, a length of the demultiplexing circuit in the second direction can be reduced, which helps increase a length of an L-cut formed in a driving bonding area.
1 . A display panel comprising a display area and a non-display area located on a side of the display area, wherein the display panel comprises:
a substrate;
a touch layer disposed on a side of the substrate, wherein the touch layer comprises touch electrodes arranged in the display area and arranged along a first direction and a second direction and touch wires disposed corresponding to the touch electrodes, the first direction is a column direction of the touch electrodes, and the second direction is a row direction of the touch electrodes; and
a demultiplexing circuit group disposed on a side of the substrate and located in the non-display area, wherein the demultiplexing circuit group comprises demultiplexing circuits corresponding to the touch electrodes, and each of the demultiplexing circuits is electrically connected to a corresponding touch electrode through the touch wires;
wherein the demultiplexing circuits are arranged along the first direction and the second direction in the non-display area, and some of the demultiplexing circuits that are connected to corresponding ones of the touch electrodes in a same column are also arranged in a same column and are aligned with each other;
wherein each demultiplexing circuit comprises a plurality of first transistors, and the plurality of first transistors within each demultiplexing circuit are arranged in alignment along the first direction;
wherein the plurality of first transistors of each demultiplexing circuit comprise a first driving transistor, a first sensing transistor, and a first reset transistor; the first driving transistor, the first sensing transistor, and the first reset transistor are arranged along the first direction and aligned with each other; the first driving transistor, the first sensing transistor, and the first reset transistor, as a group of first transistors corresponding to each demultiplexing circuit, are connected to a respective one of the touch electrodes through the touch wires; and
wherein the demultiplexing circuit group further comprises a plurality of driving wires, the plurality of driving wires comprise at least one driving signal providing wire, a plurality of sensing signal receiving wires, and at least one reset signal providing wire, the driving signal providing wire is electrically connected to a corresponding touch electrode through a corresponding first driving transistor, each sensing signal receiving wire is electrically connected to a corresponding touch electrode through a corresponding first sensing transistor, and the reset signal providing wire is electrically connected to a corresponding touch electrode through a corresponding first reset transistor.
2 . The display panel according to claim 1 , wherein the display panel further comprises a plurality of non-display touch bonding terminals, and each of the touch bonding terminals is electrically connected to an input terminal of the demultiplexing circuits that multiplex a same signal channel.
3 . The display panel according to claim 1 , wherein the display panel further comprises:
a driving circuit layer disposed between the substrate and the touch layer, wherein the driving circuit layer comprises a plurality of driving circuits arranged along the first direction and the second direction, and each driving circuit comprises a second transistor;
wherein a channel extension direction of the second transistor is different from a channel extension direction of the first transistor.
4 . The display panel according to claim 3 , wherein a channel of the first transistor extends along the first direction.
5 . The display panel according to claim 4 , wherein a channel of the second transistor extends along the second direction.
6 . The display panel according to claim 1 , wherein:
the plurality of touch electrodes comprise a plurality of touch electrode columns arranged along the first direction and a plurality of touch electrode rows arranged along the second direction, the touch layer comprises at least a first touch layer group and a second touch layer group, the first touch layer group and the second touch layer group both comprise at least two columns of touch electrode columns;
wherein the touch electrodes of each row in the first touch layer group are electrically connected to the same sensing signal receiving wire through the demultiplexing circuits of a corresponding row, the touch electrodes in each column of the first touch layer group are electrically connected to different sensing signal receiving wires through the demultiplexing circuits of a corresponding column;
wherein the touch electrodes of each row in the second touch layer group are electrically connected to the same sensing signal receiving wire through the demultiplexing circuits of a corresponding row, the touch electrodes in each column of the second touch layer group are electrically connected to different sensing signal receiving wires through the demultiplexing circuits of a corresponding column, and the sensing signal receiving wire electrically connected to the first touch layer group is different from the sensing signal receiving wire electrically connected to the second touch layer group.
7 . The display panel according to claim 6 , wherein a plurality of the touch electrodes in the first touch layer group are electrically connected to the same driving signal providing wire through the demultiplexing circuits in a corresponding row;
the plurality of touch electrodes in the second touch control layer group are electrically connected to the same driving signal providing wire through the demultiplexing circuits in a corresponding row.
8 . The display panel according to claim 7 , wherein:
the plurality of the touch electrodes in the first touch layer group are electrically connected to the same reset signal providing wire through the demultiplexing circuits in a corresponding row;
the plurality of touch electrodes in the second touch layer group are electrically connected to the same reset signal providing wire through the demultiplexing circuits in a corresponding row.
9 . The display panel according to claim 8 , wherein the first touch layer group and the second touch layer group are electrically connected to the same driving signal providing wire and the same reset signal providing wire.
10 . The display panel according to claim 6 , wherein when the display panel performs a touch operation, the first sensing transistors corresponding to the touch electrodes of a column of the touch electrode columns in the first touch layer group and the first sensing transistors corresponding to the touch electrodes of a column of the touch electrode columns in the second touch layer group are turned on at the same time.