Quantum dot light-emitting device, preparation method thereof and display panel

• Main Author: LIU MINGQUAN
• Format: Patent
• Language: Chinese; English
• Published: 06.12.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

The embodiment of the invention discloses a quantum dot light-emitting device, a preparation method thereof and a display panel. The quantum dot light-emitting device comprises a first electrode, a second electrode, a first insulating layer, a hole function layer, an electronic function layer, a quantum dot light-emitting layer, a third electrode and a fourth electrode, wherein the first electrode and the second electrode are arranged on a substrate at intervals; the hole function layer and the electronic function layer are arranged on the first insulating layer; the quantum dot light-emitting layer is arranged on the hole function layer and the electronic function layer; the third electrode corresponds to the first electrode, and the fourth electrode corresponds to the second electrode; by adjusting the magnitude and positive and negative of the deflection voltage corresponding to the first electrode and the magnitude and positive and negative of the deflection voltage corresponding to the second electrode,