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:
Jun. 23, 2026
Filed:
Oct. 22, 2021
Hefei Boe Joint Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei BOE Joint Technology Co., Ltd., Hefei, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
A manufacturing method for a display substrate, a display substrate, and a display device. The uniformity of film thicknesses of light-emitting functional layers in sub-pixel regions of different colors can be achieved, the effective aperture ratio of the sub-pixel regions of different colors can be ensured, and the service life of the device can be prolonged. The manufacturing method includes: providing a base substrate, the base substrate including a plurality of sub-pixel regions of different colors; printing a solution of a light-emitting functional layer in each sub-pixel region, in which the volumes of the solution in the sub-pixel regions of different colors are positively correlated with the saturated vapor pressure of the solution; and performing vacuum drying on the solution to form light-emitting functional layers having uniform film thicknesses.