Organic optoelectronic device coated with a multilayer encapsulation structure and a method for encapsulating said device
US8638032B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2009 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
Abstract
The invention relates to an organic optoelectronic device, such as a display, lighting or signalling device, that is protected from the ambient air by a sealed encapsulation in the form of a thin film, and to a method for encapsulating such a device. An optoelectronic device (1) according to the invention is coated with a sealed multi-layer encapsulation structure (20) comprising alternating inorganic layers (21a to 26a) and organic layers (21b to 25b). According to the invention, the device is such that at least one of said organic layers consists of a crosslinked adhesive film (21b to 25b) based on a glue that can be crosslinked thermally or by electromagnetic radiation, the or each adhesive film having a thickness uniformly lower than 200 n, said thickness being obtained by passing the film, which is deposited and not yet cross-linked, through a vacuum, such that the total thickness of the encapsulation structure is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.