Method for making a graded barrier coating
US8034419B2 · kind B2 · utility
4Cited by
44References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2008 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Jul 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a method relating to graded-composition barrier coatings comprising first and second materials in first and second zones. The compositions of one or both zones vary substantially continuously across a thickness of the zone in order to achieve improved properties such as barrier, flexibility, adhesion, optics, thickness, and tact time. The graded-composition barrier coatings find utility in preventing exposure of devices such as organic electro-luminescent devices (OLEDs) to reactive species found in the environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.