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:
Sep. 24, 2019
Filed:
Jun. 29, 2018
Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Shenzhen, Guangdong, CN;
MingJiue Yu, Guangdong, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen, Guangdong, CN;
Abstract
The invention provides an OLED backplane manufacturing method, comprising: depositing a buffer layer on a glass substrate; depositing a first metal layer on the buffer layer, patterning the first metal layer to form a source, a drain and a lower electrode of storage capacitor; depositing a semiconductor layer on the buffer layer, and the semiconductor layer covering the source and the drain; depositing a gate insulating layer on the semiconductor layer; depositing a second metal layer on the gate insulating layer, patterning the second metal layer to obtain a gate and an upper electrode of storage capacitor; using the gate self-aligned to etch the gate insulating layer and the semiconductor layer to expose the source and the drain. The invention educes the number of masks required for OLED backplane manufacturing and effectively reduces the production cost of OLED backplane.