Display panel and display device with completed covered hollowed regions in frame region

A display device, comprising a display panel, wherein:

• the display panel includes a display region and a frame region surrounding the display region;
• and
• in the frame region, the display panel includes:
• a base substrate;
• a planarization layer at a side of the base substrate, wherein:
• the planarization layer includes a first region and a second region;
• in the first region, a perpendicular distance from an upper surface of the planarization layer to an upper surface of the base substrate is a first distance;
• in the second region, a perpendicular distance from an upper surface of the planarization layer to an upper surface of the base substrate is a second distance;
• and
• the first distance is larger than the second distance,
• an anode layer at a side of the planarization layer away from the base substrate, wherein:
• the anode layer includes a plurality of first hollowed regions and a plurality of second hollowed regions;
• and
• along a direction perpendicular to a plane of the base substrate, the plurality of first hollowed regions at least partially overlaps the first region, and the plurality of second hollowed regions at least partially overlaps the second region,
• and
• a pixel defining layer at a side of the anode layer away from the base substrate, wherein:
• the pixel defining layer includes a plurality of first covering parts and a plurality of second covering parts which are discrete from each other;
• the plurality of first covering parts covers the plurality of first hollowed regions and extends to further cover edges of the anode layer at the plurality of first hollowed regions;
• the plurality of second covering parts covers the plurality of second hollowed regions and extends to further cover edges of the anode layer at the plurality of second hollowed regions;
• and
• an area of orthographic projections of the plurality of first covering parts on the base substrate is larger than an area of orthographic projections of the plurality of second covering parts on the base substrate.