Organic light-emitting diode display panel and display device

1. An organic light-emitting diode (OLED) display panel, comprising:

an array substrate, wherein the array substrate comprises:

a first retaining wall surrounding a display region of the array substrate; and

a second retaining wall surrounding the first retaining wall, wherein

a plurality of outer electrode lines are exposed in a gap region between the first retaining wall and the second retaining wall on the array substrate, wherein each of the plurality of outer electrode lines has a stack structure formed by sequentially stacking a first metal layer and a second metal layer in a light emitting direction, and a metal activity of the first metal layer is higher than a metal activity of the second metal layer; and

at least one of the plurality of outer electrode lines is provided with at least one outer blocking portion at an edge region on at least one side of the outer electrode line, and the outer blocking portion breaks an edge line on the side of the outer electrode line in an extending direction of the outer electrode line and is in contact with the outer electrode line.

2. The OLED display panel according to claim 1 , further comprising:

a planarization layer located in a region surrounded by the first retaining wall on the array substrate, wherein

a plurality of inner electrode lines are exposed in a gap region between the planarization layer and the first retaining wall, the plurality of internal electrode lines is made of a same material as the plurality of outer electrode lines; and

at least one of the plurality of inner electrode lines is provided with at least one inner blocking portion at an edge region on at least one side of the inner electrode line, and the inner blocking portion breaks an edge line on the side of the inner electrode line in an extending direction of the inner electrode line and is in contact with the inner electrode line.

3. The OLED display panel according to claim 2 , wherein

the edge region of the outer electrode line is provided with an outer recess region recessed inwardly from a horizontal plane, and the outer blocking portion is arranged in the outer recess region.

4. The OLED display panel according to claim 2 , wherein

the edge region of the inner electrode line is provided with an inner recess region recessed inwardly from a horizontal plane, and the inner blocking portion is arranged in the inner recess region.

5. The OLED display panel according to claim 2 , wherein

the edge region of the outer electrode line is provided with an outer recess region recessed inwardly from a horizontal plane, and the outer blocking portion is arranged in the outer recess region; and

the edge region of the inner electrode line is provided with an inner recess region recessed inwardly from a horizontal plane, and the inner blocking portion is arranged in the inner recess region.

6. The OLED display panel according to claim 3 , wherein

the outer blocking portion divides the edge line of the outer electrode line into a concave edge line located in the outer recess region and a convex edge line located outside the outer recess region, and the concave edge line of the outer electrode line extends until a wall surface of the outer blocking portion.

7. The OLED display panel according to claim 4 , wherein

the inner blocking portion divides the edge line of the inner electrode line into a concave edge line located in the inner recess region and a convex edge line located outside the inner recess region, and the concave edge line of the inner electrode wire extends until a wall surface of the inner blocking portion.

8. The OLED display panel according to claim 5 , wherein

the outer blocking portion divides the edge line of the outer electrode line into a concave edge line located in the outer recess region and a convex edge line located outside the outer recess region, and the concave edge line of the outer electrode line extends until a wall surface of the outer blocking portion; and

the inner blocking portion divides the edge line of the inner electrode line into a concave edge line located in the inner recess region and a convex edge line located outside the inner recess region, and the concave edge line of the inner electrode wire extends until a wall surface of the inner blocking portion.

9. The OLED display panel according to claim 3 , wherein

the outer blocking portion divides the edge line of the outer electrode line into a concave edge line located in the outer recess region and a convex edge line located outside the outer recess region, the concave edge line of the outer electrode line extends to a wall surface of the outer blocking portion, and the concave edge line of the outer electrode line is higher than the convex edge line of the outer electrode line.

10. The OLED display panel according to claim 4 , wherein

the inner blocking portion divides the edge line of the inner electrode line into a concave edge line located in the inner recess region and a convex edge line located outside the inner recess region, the concave edge line of the inner electrode line extends to a wall surface of the inner blocking portion, and the concave edge line of the inner electrode line is higher than the convex edge line of the inner electrode line.

11. The OLED display panel according to claim 5 , wherein

the outer blocking portion divides the edge line of the outer electrode line into a concave edge line located in the outer recess region and a convex edge line located outside the outer recess region, the concave edge line of the outer electrode line extends to a wall surface of the outer blocking portion, and the concave edge line of the outer electrode line is higher than the convex edge line of the outer electrode line; and

the inner blocking portion divides the edge line of the inner electrode line into a concave edge line located in the inner recess region and a convex edge line located outside the inner recess region, the concave edge line of the inner electrode line extends to a wall surface of the inner blocking portion, and the concave edge line of the inner electrode line is higher than the convex edge line of the inner electrode line.

12. The OLED display panel according to claim 9 , wherein

the concave edge line of the outer electrode line further extends to a top surface of the outer blocking portion.

13. The OLED display panel according to claim 10 , wherein

the concave edge line of the inner electrode line further extends to a top surface of the inner blocking portion.

14. The OLED display panel according to claim 11 , wherein

the concave edge line of the outer electrode line further extends to a top surface of the outer blocking portion; and

the concave edge line of the inner electrode line further extends to a top surface of the inner blocking portion.

15. The OLED display panel according to claim 2 , wherein at least one of the outer blocking portion and the inner blocking portion is an inorganic blocking portion.

16. The OLED display panel according to claim 1 , wherein the outer electrode line further comprises a third metal layer located on a side of the first metal layer facing away from the second metal layer, and the metal activity of the first metal layer is higher than a metal activity of the third metal layer.

17. The OLED display panel according to claim 1 , wherein an electrode layer forming the outer electrode line is reused as a conductive layer forming a source and a drain of the array substrate.

18. A display device, comprising:

an organic light-emitting diode (OLED) display panel, wherein the OLED display panel comprises an array substrate, the array substrate comprising:

a first retaining wall surrounding a display region of the array substrate; and

a second retaining wall surrounding the first retaining wall, wherein

a plurality of outer electrode lines are exposed in a gap region between the first retaining wall and the second retaining wall on the array substrate, wherein each of the plurality of outer electrode lines has a stack structure formed by sequentially stacking a first metal layer and a second metal layer in a light emitting direction, and a metal activity of the first metal layer is higher than a metal activity of the second metal layer; and

at least one of the plurality of outer electrode lines is provided with at least one outer blocking portion at an edge region on at least one side of the outer electrode line, and the outer blocking portion breaks an edge line on the side of the outer electrode line in an extending direction of the outer electrode line and is in contact with the outer electrode line.