Display boards and display devices

Abstract

The bezel's narrowing is limited. [Solution] The display substrate disclosed in the present invention includes a base substrate, an annular blocking dam, and a touch metal layer, wherein the base substrate includes a display area and a frame area arranged around the display area, the blocking dam is arranged around the display area within the frame area, the touch metal layer is located on the side of the layer on which the blocking dam is located away from the base substrate, the touch metal layer includes a plurality of touch electrodes and a plurality of touch signal lines electrically connected to the touch electrodes, the touch electrodes are at least partially located in the display area, the touch signal lines are located in the frame area, the touch signal lines include a plurality of first routing wires and a plurality of second routing wires, the orthographic projection of the first routing wires on the base substrate is located between the orthographic projection of the blocking dam on the base substrate and the display area, and the orthographic projection of the second routing wires on the base substrate is located on the side of the orthographic projection of the blocking dam on the base substrate away from the display area.

Claims

1. A display board, The device includes a base substrate, at least one annular blocking dam, and a touch metal layer. The base substrate includes a display area and a frame area arranged around the display area. At least one annular blocking dam is positioned around the display area within the frame area, A display substrate wherein the touch metal layer is located on the side of the layer on which the blocking dam is located away from the base substrate, and the touch metal layer includes a plurality of touch electrodes and a plurality of touch signal lines electrically connected to the plurality of touch electrodes, wherein the plurality of touch electrodes are at least partially located in the display area, and the plurality of touch signal lines are located in the frame area, and the plurality of touch signal lines include a plurality of first routing wires and a plurality of second routing wires arranged parallel to a first direction, wherein the orthographic projection of the plurality of first routing wires on the base substrate is located between the orthographic projection of the blocking dam on the base substrate and the display area, and the orthographic projection of the plurality of second routing wires on the base substrate is located on the side of the orthographic projection of the blocking dam on the base substrate away from the display area.

2. The material further comprises an organic insulating layer having a first groove, the first groove being positioned between the orthographic projection of the blocking dam on the base substrate and the orthographic projection of a plurality of the first routing wires on the base substrate. The number N of the plurality of the first routing wires 1 satisfies the formula, and N 1 ≦ (D - d 1 - d 2 ) / (d 3 + d 4 ), the number N of the plurality of the second routing wires 2 satisfies the formula, and N 2 ≧ N - N 1 and D is the shortest distance between the boundary of the display area and the blocking dam, and d 1 d is the shortest distance between the first groove and the first routing wire, 2 is the width of the first groove in the second direction, and d 3 The first routing wire L 1 The width is d 4 The display board according to claim 1, wherein n is the distance between adjacent first routing wires, and N is the total number of the plurality of touch signal lines.

3. The display board according to claim 2, wherein the number of the plurality of first routing wires is 27 or less, and the number of the plurality of second routing wires is 23 or less.

4. The plurality of touch signal lines include a plurality of third and fourth wires arranged parallel to the second direction, The second direction intersects the first direction, The third and first routing wires have a one-to-one correspondence as an integrated structure, and the fourth and second routing wires have a one-to-one correspondence as an integrated structure. The display board according to claim 1, wherein the orthographic projections of the plurality of third routing wires and the plurality of fourth routing wires on the base substrate span the orthographic projection of the blocking dam on the base substrate.

5. The frame region includes a curved region of the blocking dam located away from the display region, The orthographic projection of the second routing wire on the base substrate is located between the orthographic projection of the blocking dam on the base substrate and the bending region. The orthographic projection of the third routing wire on the base substrate is located between the orthographic projection of the corresponding first routing wire on the base substrate and the bending region. The display board according to claim 4, wherein the orthographic projection of the fourth routing wire on the base board is located between the orthographic projection of the corresponding second routing wire on the base board and the orthographic projection of the first routing wire on the base board.

6. The frame region further includes a pad region located on the side of the bending region away from the blocking dam, The plurality of touch signal lines further include a plurality of the fifth routing wires and a plurality of sixth routing wires arranged parallel to the second direction, The plurality of fifth and sixth routing wires are arranged side by side with the second routing wire adjacent to the central axis of the base substrate in the second direction. The fifth routing wire, the third routing wire, and the first routing wire are a one-to-one integrated structure, the fifth routing wire is connected to one end of the first routing wire adjacent to the central axis of the base substrate in the second direction via the third routing wire, and the fifth routing wire extends through the bending region to the pad region. The display board according to claim 5, wherein the sixth routing wire, the fourth routing wire, and the second routing wire are integrally structured in a one-to-one correspondence, the fourth routing wire is connected to the other end of the second routing wire that is away from the central axis of the base substrate in the second direction, the sixth routing wire is connected to one end of the second routing wire that is adjacent to the central axis of the base substrate in the second direction, and the sixth routing wire extends through the bending region to the pad region.

7. In the second direction, one end of the first routing wire, which is away from the central axis of the base substrate, and one end of the fourth routing wire, which is away from the second routing wire, are arranged in the frame region adjacent to the frame region where the plurality of third routing wires are arranged. Furthermore, the display board according to claim 6, wherein the orthographic projection on the base board of one end of the first routing wire, which is away from the central axis of the base board in the second direction, and the orthographic projection on the base board of one end of the fourth routing wire, which is away from the second routing wire, are arranged between the orthographic projection of the blocking dam on the base board and the display area.

8. The plurality of touch signal lines further include a plurality of seventh and a plurality of eighth wires arranged parallel to the second direction, The seventh routing wire and the first routing wire have a one-to-one correspondence and are integrated in structure, and the seventh routing wire is connected to one end of the first routing wire that is away from the central axis of the base substrate in the second direction. The display board according to claim 7, wherein the eighth routing wire and the fourth routing wire have a one-to-one correspondence and an integrated structure, and the eighth routing wire is connected to one end of the fourth routing wire that is separated from the second routing wire.

9. The display board according to claim 1, wherein the plurality of touch signal lines are divided into two groups, and the two groups of touch signal lines are arranged symmetrically with respect to the central axis of the base board in the second direction.

10. The display board according to claim 8, wherein the width of the first wiring wire and the width of the second wiring wire are smaller than the width of the third wiring wire, the width of the fourth wiring wire, the width of the fifth wiring wire, and the width of the sixth wiring wire, and the width of the first wiring wire and the width of the second wiring wire are approximately equal to the width of the seventh wiring wire and the width of the eighth wiring wire.

11. The display substrate according to claim 10, wherein the widths of the first and second wiring wires are 3 μm to 20 μm, the widths of the third, fourth, fifth, and sixth wiring wires are 5 μm to 20 μm, and the widths of the seventh and eighth wiring wires are 3 μm to 20 μm.

12. The display board according to claim 1, wherein the resistance values ​​of the touch signal lines are approximately the same.

13. The organic insulating layer further includes a second groove, the second groove being located on the side away from the blocking dam display area, The display substrate according to claim 2, wherein the orthographic projection of the second routing wire on the base substrate is located within the second groove.

14. The display substrate according to claim 1, wherein the shortest distance between the orthographic projection of the first routing wire on the base substrate and the orthographic projection of the blocking dam on the base substrate is greater than the shortest distance between the orthographic projection of the second routing wire on the base substrate and the orthographic projection of the blocking dam on the base substrate.

15. The display substrate according to claim 14, wherein the shortest distance between the orthographic projection of the first routing wire on the base substrate and the orthographic projection of the blocking dam on the base substrate is 30 μm to 200 μm, and the shortest distance between the orthographic projection of the second routing wire on the base substrate and the orthographic projection of the blocking dam on the base substrate is 10 μm to 100 μm.

16. The display substrate according to claim 13, wherein in the second direction, the width of the first groove is smaller than the width of the second groove.

17. Further including at least one shielded wire, The display board according to claim 1, wherein the at least one shield wire is located on at least one side of the plurality of first routing wires in the second direction and / or on at least one side of the plurality of second routing wires in the second direction.

18. The display board according to claim 17, wherein the at least one shield wire is arranged to surround the touch signal line including the first routing wire, and / or the at least one shield wire is arranged to surround the touch signal line including the second routing wire.

19. The display board according to claim 18, wherein the number of at least one shield wires is two, one of which is located on the side of the first routing wire adjacent to the display area in the second direction, and the other shield wire is located on the side of the second routing wire away from the display area in the second direction.

20. The system further includes a crack detection line positioned on the shield wire side, away from the display area, The display board according to claim 19, wherein the crack detection line spans the blocking dam in the frame region where the first routing wire is arranged, and is arranged between the blocking dam and the display region in the other frame region.

21. The system further includes a grounding wire positioned between the shield wire and the crack detection wire, The display board according to claim 20, wherein the routing direction of the grounding wire is substantially the same as the routing direction of the shield wire.

22. The display board according to any one of claims 1 to 20, wherein, in the direction away from one side of the base board, the distance between the first routing wire and the base board is greater than the distance between the second routing wire and the base board.

23. A display device comprising a display board according to any one of claims 1 to 20.

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