Micro LED touch display panel
A micro LED touch display pane of reduced thickness includes a substrate, a display driving layer, micro LEDs on the display driving layer, and common electrodes connecting to the micro LEDs. The micro LEDs are spaced apart from each other and coupled to the display driving layer. The common electrodes cover the micro LEDs. The touch display panel further includes first and second electrodes. The common electrodes and the first electrodes are defined in one layer, insulated from the second electrodes. The first electrodes and the second electrodes cooperatively form mutual-capacitance touch sensing structures.
1. A micro LED touch display panel, comprising:
a substrate;
a display driving layer on the substrate;
a plurality of micro LEDs on the display driving layer, the plurality of micro LEDs being spaced apart from each other and coupled to the display driving layer; and
a plurality of common electrodes located at a side of the plurality of micro LEDs away from the substrate, the plurality of common electrodes covering the plurality of micro LEDs;
wherein the micro LED touch display panel further comprises a plurality of first electrodes and a plurality of second electrodes; the plurality of common electrodes and the plurality of first electrodes are located at a same layer and defined by a single conductive layer; the plurality of first electrodes are electrically insulated from and intersect with the plurality of second electrodes; the plurality of first electrodes and the plurality of second electrodes cooperatively form a mutual-capacitance touch sensing structure;
wherein each of the plurality of first electrodes extends to be a strip in a first direction; each of the plurality of second electrodes extends to be a strip in a second direction intersecting with first direction; the plurality of first electrodes intersect with the plurality of second electrodes;
wherein each of the plurality of common electrodes extends to be a strip in a first direction; the plurality of common electrodes and the plurality of first electrodes are alternately arranged along the second direction.
2. The micro LED touch display panel of claim 1 , further comprising an insulating layer on a side of the display driving layer away from the substrate, wherein the plurality of micro LEDs are embedded in the insulating layer.
3. The micro LED touch display device of claim 2 , wherein the insulating layer comprises a first insulating layer on a side of the display driving layer away from the substrate and a second insulating layer on a side of the first insulating layer away from the substrate; and the plurality of second electrodes are between the first insulating layer and the second insulating layer.
4. The micro LED touch display device of claim 2 , wherein an additional insulating layer is on a side of the insulating layer away from the substrate, and the plurality of second electrodes are located on a side of the additional insulating layer away from the substrate.
5. The micro LED touch display device of claim 1 , wherein the plurality of micro LEDs are arranged in a matrix; each of the plurality of common electrodes covers one column of micro LEDs extending in the first direction.
6. The micro LED touch display device of claim 5 , wherein each of the plurality of second electrodes is located between two rows of micro LEDs extending in the second direction; each of the plurality of the first electrodes is located between two columns of micro LEDs extending in the first direction.
7. The micro LED touch display device of claim 1 , wherein a contact electrode is provided between each of the plurality of micro LEDs and the display driving layer; the contact electrode is coupled to the display driving layer.