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:
Oct. 26, 2021
Filed:
Nov. 08, 2019
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, CN;
Huafei Xie, Shenzhen, CN;
Abstract
A method of manufacturing a display panel is that when the preparation of a front side of the display panel is finished, a structure composed of a protective layer, a sacrificial layer, a planarization layer, and a passivation layer is introduced as a protective film. The protective film structure does not contaminate vacuum equipment such as CVD or PVD. Moreover, the protective film structure has characteristics of hardness and abrasion resistance, so it does not produce residual stripper on the conveyor and does not interfere with the manufacturing process for the back side of the display panel. Moreover, the flatness of a surface of the film layer formed by CVD and coating machine is conducive to transfer and adsorption. The protective film may be completely removed by the means of LLO and dry-etching. The method of the process can effectively realize the double-sided process for single glass.