Array substrate, method of manufacturing the same, and display panel

1. An array substrate, comprising:

a substrate and an array functional layer disposed on the substrate;

wherein the array substrate is provided with a through hole area comprising a through hole, a buffer area provided around the through hole area, and a display area provided around the buffer area;

wherein the buffer area comprises part of the substrate and an inorganic film layer provided by the array functional layer disposed on the substrate;

wherein a groove is formed in the inorganic film layer around the through hole area, the groove has a closed ring shape or a non-closed ring shape, and the groove has a depth less than a thickness of the array functional layer,

wherein a block wall is disposed on the inorganic film layer in the buffer area and surrounds the through hole area, a first buffer area is defined between the block wall and the though hole area, a second buffer area is defined between the block wall and the display area, and the groove comprises a first groove provided in the first buffer area, and/or a second groove provided in the second buffer area, wherein each of the first groove and the second groove has the closed ring shape or the non-closed ring shape, wherein the inorganic film layer comprises at least two ring-shaped inorganic strip portions defined and spaced apart by the first groove in the first buffer area, wherein when the first groove is annularly closed in shape, at least one of the at least two ring-shaped inorganic strip portions has one or more gaps, and an organic material is disposed in the one or more gaps.

2. The array substrate of claim 1 , wherein an organic material is disposed in the first groove.

3. The array substrate of claim 1 , wherein the groove comprises at least two first grooves in the first buffer area, and the inorganic film layer comprises at least three ring-shaped inorganic strip portions defined and spaced apart by the at least two first grooves in the first buffer area, wherein each of the outermost and innermost ring-shaped inorganic strip portions is annularly closed in shape, and the remaining ring-shaped inorganic strip portion has a gap.

4. The array substrate of claim 1 , wherein a pair of adjacent ring-shaped inorganic strip portions of the at least two of the ring-shaped inorganic strip portions are provided with the gaps located at an angle greater than or equal to 90 degrees and less than or equal to 180 degrees with respect to a center of the through hole area.

5. The array substrate of claim 1 , wherein the second groove has the non-closed ring shape and one or more interval portions.

6. The array substrate of claim 5 , wherein the second groove comprises a first second-groove and a second second-groove in the second buffer area, and each of the first second-groove and the second second-groove has the non-closed ring shape and is provided with four interval portions evenly distributed, and wherein the interval portions of the first second-groove and the second second-groove are staggered with respect to each other by 45 degrees.

7. The array substrate of claim 5 , wherein the groove comprises one second groove provide in the second buffer area, and, the second groove has the non-closed ring shape and is provided with four interval portions evenly distributed.

8. A display panel, comprising the array substrate of claim 1 .