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. 17, 2021
Filed:
Mar. 13, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
Minghung Hsu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Anhui, CN;
Abstract
The present disclosure provides a method of vacuum drying a film layer and a display device, the method includes: placing a substrate on which a film layer material is formed in a vacuum drying environment, wherein the film layer material contains a solvent and a solute for forming the film layer; in a first stage, evaporating and condensing the solvent in the film layer material on an upper cover plate, wherein the film layer material still contains an amount of solvent to form a soft film having fluidity; in a second stage, re-condensing a portion of the solvent condensed on the upper cover plate onto the substrate to increase the fluidity of the soft film on the substrate; and repeating the first stage and the second stage, vacuuming to completely evaporate the solvent and cure the film layer after forming a substantially flat film layer.