Driving backplane and display panel

A display panel, comprising a driving backplane and a light source;

• wherein the driving backplane comprises:
• a substrate;
• a driving circuit layer, disposed on a side of the substrate;
• wherein a top of the driving circuit layer forms a first height with a bottom of the substrate;
• a protective layer, disposed on a side of the driving circuit layer facing away from the substrate;
• wherein the protective layer comprises a plurality of first protective layer structures, and each of the first protective layer structures is disposed corresponding to each of the plurality of pad areas;
• and
• a plurality of pads, formed on sides of the first protective layer structures facing away from the driving circuit layer;
• wherein each of the plurality of pads is connected with the driving circuit layer through a via hole in each of the first protective layer structures;
• wherein a top of at least one of the first protective layer structures forms a second height with the bottom of the substrate, and the second height is greater than the first height.

A driving backplane, comprising:

• a plurality of pad areas and a plurality of non-pad areas;
• wherein the driving backplane comprises:
• a substrate;
• a driving circuit layer, disposed on a side of the substrate;
• wherein a top of the driving circuit layer forms a first height with a bottom of the substrate;
• a protective layer, disposed on a side of the driving circuit layer facing away from the substrate;
• wherein the protective layer comprises a plurality of first protective layer structures, and each of the first protective layer structures is disposed corresponding to each of the plurality of pad areas;
• and
• a plurality of pads, formed on sides of the first protective layer structures facing away from the driving circuit layer;
• wherein each of the plurality of pads is connected with the driving circuit layer through a via hole in each of the first protective layer structures;
• wherein a top of at least one of the first protective layer structures forms a second height with the bottom of the substrate, and the second height is greater than the first height;
• wherein the driving circuit layer comprise a plurality of signal lines, and orthogonal projections of at least two of the signal lines on the substrate intersect to form an overlapping area;
• and an orthogonal projection of each of the first protective layer structures on the substrate does not overlap with the overlapping area;
• wherein the protective layer comprises at least one second protective layer structure, disposed around the pad area;
• and a top of the second protective layer structure forms a third height with the bottom of the substrate, and the third height is greater than the first height and less than the second height.