Display panel, stretchable display panel and display apparatus

A stretchable display panel, comprising:

• a flexible substrate, comprising a plurality of island regions spaced apart from each other and a plurality of bridge regions configured to connect the plurality of island regions, and comprising a first hollowed hole surrounded by the plurality of island regions and the plurality of bridge regions;
• a plurality of unit display portions, respectively disposed on the plurality of island regions, wherein each of the plurality of unit display portions comprises a display region and a non-display region on a periphery of the display region, and comprises a drive backplane, and an anode layer, a light-emitting layer, and a cathode layer which are stacked on the drive backplane;
• and
• connecting portions, disposed on the plurality of bridge regions and configured to connect the adjacent unit display portions;
• wherein the drive backplane comprises a partition groove in the non-display region, and a portion of the cathode layer inside the partition groove is disconnected from a portion of the cathode layer outside the partition groove, and a recessed structure is disposed in an inner wall of the partition groove;
• the drive backplane in the unit display portion comprises a first inorganic insulation layer and an organic insulation layer which are stacked, the organic insulation layer being more proximal to the flexible substrate than the first inorganic insulation layer;
• wherein the partition groove runs through at least portions of the first inorganic insulation layer and the organic insulation layer, a side of the first inorganic insulation layer proximal to the partition groove is more protrusive than a side of the organic insulation layer proximal to the partition groove and a first organic isolation groove is disposed in a portion of the organic insulation layer in the non-display region;
• wherein in a direction parallel to the flexible substrate, the partition groove is more proximal to the display region than the first organic isolation groove, and the first inorganic insulation layer covers a side wall of the first organic isolation groove.