Light-emitting device, preparation method thereof and display device

By introducing a carboxylated graphene oxide film layer into the light-emitting device, the problem of surface defects in the carrier functional layer is solved, the luminous efficiency and stability are improved, the service life is extended, and the overall performance is improved through the heat dissipation effect.

CN118632557APending Publication Date: 2024-09-10TCL TECHNOLOGY GROUP CORPORATION
7 Cites 0 Cited by

Patent Information

Application Number
CN202310235685.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-03-10
Publication Date
2024-09-10

AI Technical Summary

Technical Problem

The luminous efficiency of existing light-emitting devices is low, mainly due to surface defects and unevenness of the carrier functional layer, which results in low carrier transmission efficiency.

Method used

Add a carboxylated graphene oxide film layer between the first electrode and the first carrier functional layer of the light-emitting device, utilize the excellent electrical and thermal conductivity properties of carboxylated graphene oxide to improve the carrier transport capability, and perform carboxylation treatment Improve the film formation and stability of the carrier functional layer.

Benefits of technology

The luminous efficiency and stability of the light-emitting device are improved, the service life is extended, and the overall performance of the device is improved through the heat dissipation effect.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention discloses a light-emitting device, a preparation method thereof and a display device. The light-emitting device comprises a first electrode, a carboxylated graphene oxide film layer, a first carrier function layer, a light-emitting layer and a second electrode which are arranged in a stacked mode. According to the light-emitting device, the carboxylated graphene oxide film layer is additionally arranged between the first electrode and the first carrier functional layer, so that the film-forming property of the first carrier functional layer can be improved, the surface defect state of the first carrier functional layer can be reduced, and the carrier transmission capability and stability of the first carrier functional layer can be improved; the light-emitting efficiency and the stability of the light-emitting device are further improved; a large amount of heat energy generated by the light-emitting device can be dissipated through the carboxylated graphene oxide film layer, the stability of the light-emitting device is further improved, and the service life of the light-emitting device is further prolonged.
Need to check novelty before this filing date? Find Prior Art