Touch structure, touch panel and display device

1. A touch structure, comprising a plurality of repeating units wherein each of the repeating units comprises:

a first touch electrode extending in a first direction, the first touch electrode being connected at positions of first tip sections by a bridge;

a second touch electrode extending in a second direction, the second touch electrode being directly electrically connected, and the second touch electrode intersecting with and insulated from the first touch electrode at the positions of the first tip sections of the first touch electrode; and

dummy electrodes provided in regions of each of the repeating units not provided with the first touch electrode and the second touch electrode;

wherein each of the dummy electrodes comprises at least two sub-dummy electrodes;

first trenches are provided between the first touch electrode and any corresponding dummy electrode adjacent to the first touch electrode;

a second trench is provided between the second touch electrode and any corresponding dummy electrode adjacent to the first touch electrode; and

a third trench is provided between dummy electrodes located in adjacent repeating units;

fourth trenches are provided between any two adjacent sub-dummy electrodes located in each of the dummy electrodes;

edges of the first trenches, the second trench, the third trench and the fourth trenches all have a plurality of bending points; and

the fourth trenches include a trench that extends from the first trench to the second trench, a trench that extends from the first trench to the third trench, and a trench that extends form an intersection point of two first trenches, adjacent to each other, of the same dummy electrode to an intersection point of the second trench and an adjacent third trench of the same dummy electrode, such that the arrangement of the fourth trenches in two dummy electrodes arranged along the FIRST touch electrode extending across the FIRST direction are symmetrical while two dummy electrodes arranged along the second touch electrode extending across the second direction are NOT symmetrical.

2. The touch structure according to claim 1 , wherein each of the dummy electrodes comprises three sub-dummy electrodes, two fourth trenches formed by adjacent sub-dummy electrodes of each of the dummy electrodes in each repeating units are parallel to each other, one of the two fourth trenches extends from the first trench to the second trench, or from the first trench to the third trench, another one of the two fourth trenches extends from the intersection point of the two adjacent first trenches of the same dummy electrode to the intersection point of the second trench and the adjacent third trench of the same dummy electrode.

3. The touch structure according to claim 2 , wherein the sub-dummy electrodes are in triangle shape and trapezoid shape, respectively.

4. The touch structure according to claim 3 , wherein the sub-dummy electrodes in each dummy electrode are arranged in an order of the triangle shaped sub-dummy electrode, the trapezoid shaped sub-dummy electrode, and the triangle shaped sub-dummy electrode along a direction along a diagonal line.

5. The touch structure according to claim 1 , wherein the second trench comprises more than eight bending points, and the third trench comprises more than five bending points.

6. The touch structure according to claim 1 , wherein the dummy electrodes, the first touch electrode, and the second touch electrode are provided in a same layer and made of a same material.

7. The touch structure according to claim 1 , wherein adjacent dummy electrodes are symmetrically provided along the first touch electrode and the second touch electrode.

8. The touch structure according to claim 1 , wherein a size of each repeating unit along the first direction is equal to a size of the repeating unit along the second direction.

9. The touch structure according to claim 1 , wherein a size of each repeating unit along the first direction and a size of the repeating unit along the second direction are both 3 mm to 8 mm.

10. A touch panel, comprising a touch structure, wherein touch structure, comprising a plurality of repeating units, wherein each of the repeating units comprises:

a first touch electrode extending in a first direction, the first touch electrode being connected at positions of first tip sections by a bridge;

a second touch electrode extending in a second direction, the second touch electrode being directly electrically connected, and the second touch electrode intersecting with and insulated from the first touch electrode at the positions of the first tip sections of the first touch electrode; and

dummy electrodes provided in regions of each of the repeating units not provided with the first touch electrode and the second touch electrode;

wherein each of the dummy electrodes comprises at least two sub-dummy electrodes;

first trenches are provided between the first touch electrode and any corresponding dummy electrode adjacent to the first touch electrode;

a second trench is provided between the second touch electrode and any corresponding dummy electrode adjacent to the first touch electrode; and

a third trench is provided between dummy electrodes located in adjacent repeating units;

fourth trenches are provided between any two adjacent sub-dummy electrodes located in each of the dummy electrodes;

edges of the first trenches, the second trench, the third trench and the fourth trenches all have a plurality of bending points; and

the fourth trenches include a trench that extends from the first trench to the second trench, a trench that extends from the first trench to the third trench, and a trench that extends form an intersection point of two first trenches, adjacent to each other, of the same dummy electrode to an intersection point of the second trench and an adjacent third trench of the same dummy electrode, such the FIRST touch electrode extending across the FIRST direction are symmetrical while second direction are NOT symmetrical.

11. The touch panel according to claim 10 , further comprising a display panel, wherein the display panel comprises an array substrate, a color filter substrate, a liquid crystal layer between the array substrate and the color filter substrate, an upper polarizer provided on a light emergent side of the color filter substrate and a lower polarizer provided on a light incident side of the array substrate; and

the touch structure is provided between the color filter substrate and the upper polarizer.

12. The touch panel according to claim 11 , further comprising a protective glass layer; the touch structure being provided between the protective glass layer and the display panel, and the touch structure being in contact with the protective glass layer.

13. The touch panel according to claim 11 , further comprising a protective glass layer;

wherein the touch structure is provided on a substrate, and the substrate provided with the touch structure is provided between the protective glass layer and the display panel.

14. A display device, comprising a touch panel, wherein the touch panel comprises

a touch structure, wherein touch structure, comprises

a plurality of repeating units, wherein each of the repeating units comprises:

a first touch electrode extending in a first direction, the first touch electrode being connected at positions of first tip sections by a bridge;

a second touch electrode extending in a second direction, the second touch electrode being directly electrically connected, and the second touch electrode intersecting with and insulated from the first touch electrode at the positions of the first tip sections of the first touch electrode; and

dummy electrodes provided in regions of each of the repeating units not provided with the first touch electrode and the second touch electrode;

wherein each of the dummy electrodes comprises at least two sub-dummy electrodes;

first trenches are provided between the first touch electrode and any corresponding dummy electrode adjacent to the first touch electrode;

a second trench is provided between the second touch electrode and any corresponding dummy electrode adjacent to the first touch electrode; and

a third trench is provided between dummy electrodes located in adjacent repeating units;

fourth trenches are provided between any two adjacent sub-dummy electrodes located in each of the dummy electrodes;

edges of the first trenches, the second trench, the third trench and the fourth trenches all have a plurality of bending points; and

the fourth trenches include a trench that extends from the first trench to the second trench, a trench that extends from the first trench to the third trench, and a trench that extends form an intersection point of two first trenches, adjacent to each other, of the same dummy electrode to an intersection point of the second trench and an adjacent third trench of the same dummy electrode, such that the arrangement of the fourth trenches in tow dummy electrodes arranged along the FIRST touch electrode extending across the FIRST direction are symmetrical while two dummy electrodes arranged along the second touch electrode extending across the second direction are NOT symmetrical.

15. The display device according to claim 14 , further comprising a display panel, wherein the display panel comprises an array substrate, a color filter substrate, a liquid crystal layer between the array substrate and the color filter substrate, an upper polarizer provided on a light emergent side of the color filter substrate and a lower polarizer provided on a light incident side of the array substrate; and

the touch structure is provided between the color filter substrate and the upper polarizer.

16. The display device according to claim 15 , further comprising a protective glass layer; the touch structure being provided between the protective glass layer and the display panel, and the touch structure being in contact with the protective glass layer.

17. The touch panel according to claim 10 , wherein each of the dummy electrodes comprises three sub-dummy electrodes, two fourth trenches formed by adjacent sub-dummy electrodes in each repeating units are parallel to each other, one of the two fourth trenches extends from the first trench to the second trench, or from the first trench to the third trench, another one of the two fourth trenches extends from the intersection point of the two adjacent first trenches of the same dummy electrode to the intersection point of the second trench and the adjacent third trench of the same dummy electrode.

18. The display device according to claim 14 , wherein each of the dummy electrodes comprises three sub-dummy electrodes, two fourth trenches formed by adjacent sub-dummy electrodes in each repeating units are parallel to each other, one of the two fourth trenches extends from the first trench to the second trench, or from the first trench to the third trench, another one of the two fourth trenches extends from the intersection point of the two adjacent first trenches of the same dummy electrode to the intersection point of the second trench and the adjacent third trench of the same dummy electrode.