Quantum dot light-emitting diode and display device

A display device, comprising a cover plate, a quantum dot light-emitting diode, a color filter unit and a substrate that are sequentially stacked, and the quantum dot light-emitting diode comprises a first electron layer, an organic light-emitting layer, a first hole layer, a second electron layer, a quantum dot light-emitting layer, and a second hole layer that are sequentially stacked;

• wherein the first electron layer is configured to transport first electrons to the organic light-emitting layer;
• wherein the first hole layer is configured to transport first holes to the organic light-emitting layer;
• wherein the first electrons and the first holes are compounded in the organic light-emitting layer to form excitons, and the organic light-emitting layer is configured to emit a first light using energy generated by the excitons;
• wherein the second electron layer is configured to transport second electrons to the quantum dot light-emitting layer;
• wherein the second hole layer is configured to transport second holes to the quantum dot light-emitting layer;
• wherein the second electrons and the second holes are compounded in the quantum dot light-emitting layer to form excitons, and the quantum dot light-emitting layer is configured to emit a second light using energy generated by the excitons.