Display substrate, tiled display panel and display device

A display substrate comprising:

• a base substrate comprising at least a side edge and a display area;
• a plurality of pixel units disposed in the display area comprising a first pixel unit, a second pixel unit and a third pixel unit, wherein the second pixel unit is located on a side of the first pixel unit close to the side edge, edges of the second pixel unit comprise the side edge, the third pixel unit is located between the first pixel unit and the second pixel unit, and the third pixel unit is adjacent to the second pixel unit;
• and
• a plurality of light emitting diode chips disposed on the base substrate comprising a first light emitting diode chip and a second light emitting diode chip, wherein the first light emitting diode chip is located in the first pixel unit, a part of the second light emitting diode chip is located in the second pixel unit, and the other part of the second light emitting diode chip is located in the third pixel unit,
• wherein the light emitting diode chip comprises a plurality of light emitting regions, and the number of the light emitting regions of the second light emitting diode chip is different from the number of the light emitting regions of the first light emitting diode chip.