Light-emitting assembly, display panel, and preparation method for light-emitting assembly

A light emitting assembly comprising:

• a light emitting unit comprising a first electrode, a second electrode, and a light emitting portion electrically connected with the first electrode and the second electrode, respectively;
• a driving unit comprising a third electrode, a fourth electrode, and a driving portion, wherein each of the third electrode and the fourth electrode is located on a side of the driving unit facing the light emitting unit, the third electrode and the fourth electrode are electrically connected with a driving circuit in the driving portion, respectively, the third electrode is electrically connected with the first electrode, and the fourth electrode is electrically connected with the second electrode;
• and
• a plurality of pins, each located on a side of the driving unit facing away from the light emitting unit, and electrically connected with the driving circuit;
• wherein a first filling portion, a second filling portion, and a third filling portion are included between the light emitting unit and the driving unit, the first filling portion surrounds the second filling portion and the third filling portion, and a thickness of the first filling portion is greater than a thickness of the second filling portion and a thickness of the third filling portion, respectively;
• the second filling portion is located between the first electrode and the third electrode, and is disposed in contact with the first electrode and the third electrode, respectively;
• the third filling portion is located between the second electrode and the fourth electrode, and is disposed in contact with the second electrode and the fourth electrode, respectively.