Display panel and display device

A display panel, comprising:

• a base substrate comprising a display region and a peripheral region, wherein the display region comprises an outer boundary;
• a plurality of sub-pixels arranged in the display region, wherein the plurality of sub-pixels are arranged in an array in a first direction and a second direction in the display region, and at least one of the sub-pixels comprises a first electrode, a second electrode and a functional layer located between the first electrode and the second electrode;
• a first electrode layer arranged on the base substrate, wherein the first electrodes of the plurality of sub-pixels are located in the first electrode layer;
• a pixel defining layer arranged on a side of the first electrode layer away from the base substrate;
• and
• a photo spacer layer arranged on a side of the pixel defining layer away from the base substrate,
• wherein the display panel further comprises at least one barrier dam arranged on the base substrate, and the at least one barrier dam is located on a side of the peripheral region away from the display region in the peripheral region;
• wherein in the first direction and the second direction, the outer boundary is adjacent to an outermost row of sub-pixels located in the display region, and the outermost row of sub-pixels located in the display region faces a side of the peripheral region;
• wherein the photo spacer layer comprises a plurality of first photo spacers and a plurality of second photo spacers, the plurality of first photo spacers are arranged in an array in the display region, the plurality of second photo spacer are arranged in an array in the peripheral region, and the plurality of second photo spacers are located between the outer boundary and the at least one barrier dam;
• and
• wherein a distribution density of the plurality of second photo spacers in the peripheral region is less than a distribution density of the plurality of first photo spacers in the display region.