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:
Dec. 07, 2021
Filed:
Aug. 31, 2018
Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei, CN;
Tianfu Guo, Hubei, CN;
Hsianglun Hsu, Hubei, CN;
Abstract
A composite film layer, a method for manufacturing the same, and a method for manufacturing an organic light emitting diode (OLED) display panel are provided. The composite film layer includes first sub-film layers and second sub-film layers having different refractive indices, wherein the first sub-film layers and the second sub-film layers are alternately stacked, and thicknesses of the first sub-film layer and thicknesses of the second sub-film layer gradually increase or decrease in a direction perpendicular to the composite film layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile