A display panel and a display device are disclosed. The display panel comprises: a first substrate and a second substrate that are cell-assembled together; a first polarizer that is disposed on a lower side of the first substrate. The first substrate and the second substrate are sealed by a sealing material disposed in a periphery region of both the first substrate and the second substrate. A display area is an area on the first substrate inside the sealing material and a first non-display area is an area that is aligned with the second substrate on the first substrate and outside of the sealing material. The first substrate extends outward on a side of the first non-display area to protrude out of the second substrate; the first polarizer extends outward on the side of the first non-display area to protrude out of the second substrate.