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:
Feb. 15, 2022
Filed:
Sep. 30, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Penghao Gu, Beijing, CN;
Chunyan Xie, Beijing, CN;
Song Zhang, Beijing, CN;
Weifeng Zhou, Beijing, CN;
Lingzhi Qian, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A display substrate and a preparation method thereof, a display device and a preparation method thereof and a display apparatus are proposed in the disclosure. The preparation method of the display substrate includes: providing a flexible base, an upper surface thereof having a display area and a circuit connection area, and a portion of the flexible base including a bending portion and a connection portion; disposing a groove on the lower surface, and an orthographic projection of the groove on the upper surface corresponding to a position of an orthographic projection of the bending portion on the upper surface; disposing a back plate, an OLED light emitting device and a package structure in a sequence on the display area, and disposing a circuit connection layer on the circuit connection area. Bending the bending portion downward to extend, the connection portion is located on a side of the lower surface.