Substrate comprising a first lead having a curved section close to a bonding electrode and a straight section close to an edge of a substrate and display panel
A substrate and a display panel are provided, which relate to the technical field of display apparatus. The substrate includes an active area and a bonding area located outside the active area and close to an edge of the substrate, wherein a bonding electrode is disposed within the bonding area, a first lead extending toward the edge of the substrate is connected to one side of the bonding electrode toward the edge of the substrate, and the first lead includes a curved section close to the bonding electrode and a straight section close to the edge of the substrate.
1. A substrate, comprising:
an active area and a bonding area located outside the active area and close to an edge of the substrate, wherein a bonding electrode is disposed within the bonding area, a first lead extending toward the edge of the substrate is connected to one side of the bonding electrode toward the edge of the substrate, and the first lead comprises a curved section close to the bonding electrode and a straight section close to the edge of the substrate;
wherein a distance between the bonding electrode and the edge of the substrate is L, a length of the curved section of the first lead on a direction perpendicular to the edge of the substrate is a, and a length of the straight section of the first lead is b, wherein L=a+b and b=L/3 to L/2.
2. The substrate of claim 1 , wherein a distance between the curved section of the first lead and the edge of the substrate is greater than 0.2 mm.
3. The substrate of claim 2 , wherein the first lead is disposed perpendicular to the edge of the substrate, and the straight section of the first lead extends to the edge of the substrate.
4. The substrate of claim 2 , wherein a width of the curved section of the first lead is less than or equal to a width of the bonding electrode.
5. The substrate of claim 1 , wherein the bonding electrode comprises a first metal layer, an insulating layer and a second metal layer which are sequentially stacked on the substrate, wherein the second metal layer is connected with the first metal layer through a via hole disposed on the insulating layer, the second metal layer is used for bonding and connecting with an external circuit board, and the first lead is connected with the first metal layer.
6. The substrate of claim 5 , wherein one side of the bonding electrode away from the first lead is connected with a second lead, and the second lead is connected with the first metal layer and connected with a signal line within the active area; and the first lead, the first metal layer and the second lead are disposed on a same layer.
7. The substrate of claim 5 , wherein a material of the second metal layer comprises a transparent material.
8. The substrate of claim 1 , wherein a plurality of bonding electrodes are disposed, and first leads of the plurality of bonding electrodes are disposed in parallel.
9. A display panel, comprising the substrate of claim 1 .
10. A display panel, comprising the substrate of claim 2 .
11. A display panel, comprising the substrate of claim 3 .
12. A display panel, comprising the substrate of claim 4 .
13. A display panel, comprising the substrate of claim 5 .
14. A display panel, comprising the substrate of claim 6 .
15. A display panel, comprising the substrate of claim 7 .
16. A display panel, comprising the substrate of claim 8 .