Flexible OLED display panel and manufacturing method thereof
US10490758B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Nov 24, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a flexible organic light-emitting diode (OLED) display panel, which includes a first polyimide layer, a barrier layer and a second polyimide layer that are sequentially stacked and a thin film transistor (TFT) structure and an OLED structure that are sequentially disposed on the second polyimide layer, in which a material of the barrier layer includes at least one of silicon dioxide and silicon nitride. By arranging a flexible base as an upper polyimide layer and a lower polyimide layer and adding a barrier layer between the two polyimide layers, the present invention can effectively block water and oxygen from entering an interior of a component through a flexible polyimide base, thereby protecting the TFT structure and the OLED structure and improving the lifespan of the OLED display panel. The present invention further provides a manufacturing method of a flexible OLED display panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.