Display panel with touch detection function
Provided is a display panel including: a plurality of pixel electrodes divided into a plurality of groups; and a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes included in one of the plurality of groups. Each of a plurality of sensor electrode lines overlaps with corresponding one of a plurality of data signal lines in plan view. The plurality of sensor electrode lines and each of the plurality of common electrodes overlap each other in plan view. The each of the plurality of common electrodes is electrically connected to the plurality of sensor electrode lines. At least one insulating film is formed between each of a region between the data signal lines and the sensor electrode lines, a region between the sensor electrode lines and the common electrodes, and a region between the common electrodes and the pixel electrodes.
1. A liquid crystal display panel comprising:
a glass substrate;
a plurality of gate signal lines extending in a first direction and formed on the glass substrate;
a plurality of data signal lines and a plurality of sensor electrode lines, which extend in a second direction different from the first direction;
a plurality of pixel electrodes arranged in the first direction and the second direction; and
a plurality of common electrodes arranged at a ratio of one to a plurality of pixel electrodes,
wherein each of the plurality of sensor electrode lines overlaps with a corresponding one of the plurality of data signal lines in a plan view,
wherein each of the plurality of sensor electrode lines overlaps with a corresponding at least one of the plurality of common electrodes in the plan view,
a first insulating film which is formed on the glass substrate and covers the plurality of gate signal lines,
wherein the plurality of data signal lines are formed on the first insulating film,
a second insulating film which is formed to cover the plurality of data signal lines,
wherein the plurality of sensor electrode lines are formed on the second insulating film,
a third insulating film which is formed to cover the plurality of sensor electrode lines, and
a through-hole which is formed through a part of the third insulating film,
wherein the plurality of common electrodes are formed on the third insulating film, and one of the plurality of common electrodes is formed inside the through hole to be electrically connected to a corresponding one of the plurality of sensor electrode lines,
a plurality of adhesion layers which are formed on the second insulating film, and wherein the plurality of sensor electrode lines is respectively formed on the plurality of adhesion layers.
2. The liquid crystal display panel according to claim 1 , wherein the plurality of pixel electrodes are disposed between the glass substrate and the plurality of common electrodes.
3. The liquid crystal display panel according to claim 1 , wherein a width of one of the plurality of the adhesion layers is wider than a width of the one of the plurality of sensor electrode lines formed on the corresponding one of the plurality of adhesion layers.
4. The liquid crystal display panel according to claim 1 , wherein the plurality of common electrodes are arrayed at equal intervals in the first direction and the second direction.
5. The liquid crystal display panel according to claim 1 , wherein the plurality of common electrodes are arranged so that a gap between two adjacent electrodes of the plurality of common electrodes overlaps with a gap between adjacent pixels in the plan view.
6. The liquid crystal display panel according to claim 1 , wherein the display panel detects a touch position by means of a self-capacitance method of a capacitive system.