Light-emitting device, display panel and display device

The invention provides a light-emitting device, a display panel and a display device. The light-emitting device comprises an anode, a cathode, a light-emitting unit and a charge generation layer, wherein the anode and the cathode are oppositely arranged. The light-emitting unit is arranged between the anode and the cathode and comprises a first light-emitting unit and a second light-emitting unit which are sequentially arranged in a stacked mode in the first direction. The charge generation layer is disposed between the first light emitting unit and the second light emitting unit. The charge generation layer comprises a first charge generation layer and a second charge generation layer which are sequentially stacked in the first direction. The first charge generation layer comprises a first type of compound, the second charge generation layer comprises a second type of compound and a third type of compound, and the first direction is the direction from the anode to the cathode. By optimizing the material types of the first charge generation layer and the second charge generation layer and optimizing the matching, the charge is effectively injected and transmitted into the first light-emitting unit and the second light-emitting unit, so that the light-emitting efficiency of the light-emitting device is improved, and the service life of the light-emitting device is prolonged.