And a light emitting device and a method of manufacturing a display device

The present invention discloses a method of manufacturing the light emitting device and a display device. The light-emitting device comprising: a first electrode layer located over the base substrate and the base substrate, the second electrode layer and the light emitting layer, a light emitting layer between the first electrode and the second electrode layer on said layer; the light emitting layer includes a hole transport layer, the hole transport layer comprising a first thickness, to avoid performance degradation of the light emitting device. In the present invention, the base substrate is formed over the first electrode layer, second electrode layer and the light emitting layer, a light emitting layer between the first electrode layer and the second electrode layer, a luminescent layer comprising a hole transport layer, a hole transport It includes a layer of a first thickness, avoiding the performance degradation of the light emitting device.