Title:
QUANTUM DOT LIGHT-EMITTING DEVICE, PREPARATION METHOD THEREFOR, AND DISPLAY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/050287
Kind Code:
A1
Abstract:
The present disclosure belongs to the technical field of displaying, and provides a quantum dot light-emitting device, a preparation method therefor, and a display apparatus, which may solve the problems of low luminous efficiency, unstable performance and short service life of existing quantum dot light-emitting devices. The quantum dot light-emitting device of the present disclosure comprises: a first electrode, a hole transport layer, a quantum dot light-emitting layer, an electron transport layer and a second electrode stacked in sequence, wherein the materials of the hole transport layer, the quantum dot light-emitting layer and the electron transport layer are all inorganic materials; and the hole transport layer comprises a first hole transport layer and a second hole transport layer stacked in sequence, the first hole transport layer is located on a side close to the first electrode, and the material of the second hole transport layer comprises an inorganic perovskite material.
Inventors:
ZHANG XIAOYUAN (CN)
Application Number:
PCT/CN2021/122113
Publication Date:
April 06, 2023
Filing Date:
September 30, 2021
Export Citation:
Assignee:
BOE TECHNOLOGY GROUP CO LTD (CN)
BEIJING BOE TECHNOLOGY DEV CO LTD (CN)
BEIJING BOE TECHNOLOGY DEV CO LTD (CN)
International Classes:
H01L51/50
Foreign References:
| CN108899433A | 2018-11-27 | |||
| CN107464886A | 2017-12-12 | |||
| CN105870349A | 2016-08-17 | |||
| US20170271605A1 | 2017-09-21 |
Attorney, Agent or Firm:
TEE & HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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