Manufacturing method of multilayer display device

A method of manufacturing a display device, comprising:

• a first step of forming a first pixel electrode and a second pixel electrode which are apart from each other;
• a second step of forming a first electroluminescent (EL) layer, a first layer, and a second layer over the first pixel electrode;
• a third step of forming a second EL layer, a third layer, and a fourth layer over the second pixel electrode and then forming an insulating film covering the first layer, the second layer, the third layer, and the fourth layer;
• a fourth step of forming a resin layer covering an end portion of the second layer and an end portion of the fourth layer by applying a photosensitive resin, exposing the photosensitive resin to light, and developing the photosensitive resin;
• a fifth step of exposing a top surface of the first EL layer and a top surface of the second EL layer by etching parts of the first layer, the second layer, the third layer, and the fourth layer which are not covered with the resin layer;
• and
• a sixth step of forming a common electrode covering the first EL layer, the second EL layer, the insulating film, and the resin layer,
• wherein the light used for the fourth step contains ultraviolet light,
• wherein the second layer and the fourth layer contain a material which reflects or absorbs the light, and
• wherein the method further comprises the steps of etching parts or whole of portions of the insulating film, the second layer, and the fourth layer which are not covered with the resin layer after the third step, and recessing the resin layer by etching part of a surface of the resin layer after the fifth step.