| 摘要 |
A light-emitting element, a light-emitting device, and an electronic device are provided to prevent deterioration of an element by forming a light-emitting region not at an interface between a light-emitting layer and a hole transporting layer or an interface between the light-emitting layer and an electron transporting layer but in the vicinity of the center of the light-emitting layer. A light-emitting element includes a first electrode(102), a second electrode(104), a first layer(121), and a second layer(122). The first layer includes a first organic compound to emit a first light and a second organic compound having an electron transporting property, and is installed between the first electrode and the second electrode. The second layer includes a third organic compound to emit a second light and have an electron trap property, and a fourth organic compound having the electron transporting property, and is installed in the first electrode and the second electrode. A color of the first light is similar to a color of the second light. |
