An array substrate is disclosed herein, which includes a display area and a surrounding area. The surrounding area encircles the display area, and includes a first zone and a second zone. The first zone and the second zone are configured to have a height difference to form a substantially uneven upper surface of the array substrate to thereby allow a sealant to be securely attached onto the array substrate. The array substrate further includes a substrate, a first signal line, and a second signal line. The first signal line is disposed over the substrate. The second signal line is disposed over, insulated from, and staggered at a staggering region with, the first signal line. It is configures such that the staggering region is in the first zone. A display panel and a display apparatus containing the array substrate is further disclosed.