Manufacturing method of a flexible OLED display panel
US10622417B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 28, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | May 22, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/311
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a manufacturing method of a flexible OLED display panel, including: providing a rigid substrate and forming a flexible substrate on the rigid substrate; forming a thin film transistor array layer on the flexible substrate; forming an OLED display unit on the thin film transistor array layer; forming an encapsulation layer on the OLED display unit; forming a protection cover on the encapsulation layer; and peeling the rigid substrate from the flexible substrate by using a laser lift-off process. The present disclosure is uses a coating process or a printing process to form each layer structure in a flexible OLED display panel. The manufacturing method effectively reduces the total thickness of the device and increases the adhesion between the layers so as to avoid the problem that the flexible OLED display panel is wrinkled or peeled when bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.