Display panel, method for processing defective pixels thereof, display device

A display panel comprising:

• a substrate;
• a plurality of pixel units on the substrate and arranged in an array, wherein ones of the plurality of pixel units comprise a light emitting region and a driving circuit region, wherein the driving circuit region comprises a transistor, wherein the light emitting region comprises a first electrode, and wherein the first electrode is electrically coupled to a first terminal of the transistor, wherein in one of a row direction and a column direction of the plurality of pixel units arranged in the array, the light emitting regions of every two adjacent rows or columns of the pixel units are adjacent to each other and separated from the light emitting regions of other rows or columns of the pixel units by the driving circuit regions;
• a maintenance assisting line between the pixel units that are adjacent to each other;
• and
• an insulating layer between the maintenance assisting line and the first electrode,
• wherein the maintenance assisting line is configured to electrically couple the first electrode of the pixel units that are adjacent to each other in response to poor driving of the light emitting region of one of the pixel units that are adjacent to each other, and
• wherein the maintenance assisting line is directly on the substrate and the insulating layer is directly on the maintenance assisting line.