Mask, flexible display panel and manufacturing method thereof
US11963431B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 24, 2019 |
| Grant date | Apr 16, 2024 |
| Priority date | — |
| Expiry date | Nov 29, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/311
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mask for forming a trench in a flexible bendable region of a flexible display panel is provided. The mask includes a first region, a second region, and a third region sandwiched between the first and second regions in a first direction, and the third region has the same pattern as a pattern of a trench to be formed. Light transmission properties of the first and second regions are the same as each other, but are opposite to a light transmission property of the third region. An edge of at least one of the first and second regions proximal to the third region has a plurality of protrusions, and each of the plurality of protrusions has a vertex angle that is at a side proximal to the third region and is not more than 90°. A flexible display panel and a manufacturing method thereof are further provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.