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. 29, 2020
Filed:
Jul. 15, 2019
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Hefei, Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD., Hefei, Anhui, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A method for preparing an OLED display substrate of an embodiment of the present disclosure comprises: providing a substrate comprising pixel definition regions each for defining a pixel unit, and forming a first electrode in the pixel unit; forming a pixel definition structure and an auxiliary electrode in the pixel definition region, the pixel definition structure being configured to separate the first electrode from the auxiliary electrode; forming a phase transition structure; forming a light-emitting layer to cover the phase transition structure and the first electrode; exciting the phase transition structure to contract the phase transition structure, thereby causing the light-emitting layer to be broken at a position corresponding to the contraction of the phase transition structure to form an opening; and forming a second electrode, such that the second electrode covers the light-emitting layer and is electrically connected to the auxiliary electrode through the opening.