Mask-frame assembly and method of manufacturing organic light emitting display apparatus by using the same
US12029101B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2021 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jan 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Provided are a mask-frame assembly including (i) a frame including an opening portion, (ii) an open mask coupled to the frame to cover the opening portion and including a main portion including a plurality of openings located in the opening portion, a first rib connected to the main portion and extending in a first direction away from a center of the main portion, a second rib connected to the main portion and extending in a second direction across the first direction and away from the center of the main portion, and a first bridge portion connecting a first edge of the first rib in a direction toward the second rib to a second edge of the second rib in a direction toward the first rib, and (iii) mask sticks overlapping the open mask, having both ends coupled to the frame, and including a plurality of holes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.