Touch panel, array substrate and display device
The present disclosure provides a touch panel, an array substrate and a display device. The touch panel includes a touch control electrode unit including a first electrode and a second electrode which are insulated from each other, and the second electrode surrounds the first electrode. In the touch panel in which the second electrode surrounds the first electrode in the touch control electrode unit, since the first electrode and the second electrode are provided independently, touch control driving and sensing are performed on the first electrode and the second electrode respectively when the touch panel is being touched.
1. An array substrate, comprising:
a touch panel, comprising a touch control electrode unit, the touch control electrode unit comprising a first electrode and a second electrode which are insulated from each other, and the second electrode surrounding the first electrode;
a common electrode;
pixel electrodes, located above or below the common electrode;
a first switch transistor, configured to drive a pixel electrode in an odd column in a row of pixel electrodes to display;
a second switch transistor, configured to drive a pixel electrode in an even column in the row of pixel electrodes to display;
a first gate line, connected to a gate of the first switch transistor; and
a second gate line, connected to a gate of the second switch transistor;
wherein one data line is provided every two columns of pixel electrodes, two adjacent columns of pixel electrodes which are provided with a data line therebetween are connected to the data line through the first switch transistor and the second switch transistor connected respectively to the two adjacent columns of pixel electrodes;
a common signal line is provided between two adjacent columns of pixel electrodes which are not provided with a data line therebetween, the common signal line and the data line are formed in a same layer by using a same material, and the common signal line is connected to the common electrode through a via provided in an insulation layer located between the data line and the common electrode;
the common signal line serves as the common electrode during display, and serves as a driving signal line and a sensing signal line of the touch panel during touch control; and
the first electrode and the second electrode of the touch panel serve as the common electrode,
the first electrode has a square shape, the second electrode has a square annular shape, and distances between four sides of an inner ring and corresponding four sides of an outer ring of the second electrode in the square annular shape are equal to each other; a side length of the first electrode in the square shape is two times of a ring width of the second electrode in the square annular shape, and a gap between the first electrode and the second electrode is in a range from 3 μm to 5 μm.
2. The array substrate of claim 1 , wherein
the array substrate comprises a plurality of common signal lines,
each of a plurality of first electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line; and
each of a plurality of second electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line.
3. The array substrate of claim 1 , wherein
the array substrate comprises a plurality of common signal lines,
each of a plurality of first electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line among the plurality of common signal lines connected in parallel; and
each of a plurality of second electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line among the plurality of common signal lines connected in parallel.
4. A display device, comprising the array substrate of claim 1 .
5. A display device, comprising the array substrate of claim 2 .
6. A display device, comprising the array substrate of claim 3 .