The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2022
Filed:
Nov. 26, 2019
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Pei Jiang, Shenzhen, CN;
Chiayu Lee, Shenzhen, CN;
Chunche Hsu, Shenzhen, CN;
Shujhih Chen, Shenzhen, CN;
Miao Duan, Shenzhen, CN;
Yongming Yin, Shenzhen, CN;
Yongwei Wu, Shenzhen, CN;
Bo He, Shenzhen, CN;
Other;
Abstract
A method of preparing a film and a light-emitting device are disclosed. The method includes: providing at least one gas-phase source above a substrate, the at least one gas-phase source made of materials comprising a perovskite material; and controlling an evaporation rate of the at least one gas-phase source to form a perovskite film. In the method provided by the present invention, a perovskite light-emitting layer is prepared by gas-phase source evaporation coating without an organic solvent, which avoids miscibility between the organic solvent and other layers and improves compatibility between the perovskite material and other film materials, thereby realizing the low preparation cost and the simple preparation process.