Patent · US Active

Organic electroluminescence device with separating foil

US9780330B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

KONINIKLIJKE PHILIPS N.V. · NL

Inventors

Herbert Friedrich Boerner · Aachen, DE
Rainald Manfred Gierth · Aachen, DE
Stefan Peter Grabowski · Neuss, DE
Petrus Cornelis Paulus Bouten · Eindhoven, NL
Peter Van De Weijer · Heeze, NL

Key dates

Filing date	Jul 5, 2016
Grant date	Oct 3, 2017
Priority date	—
Expiry date	Jul 5, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH10K50/846
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to OLEDs (1) having a substrate (2), a first electrode layer (3), a layer of organic electroluminescence material (4), a second electrode layer (5), a cover layer (6), moisture-absorbing means (9) and a separating foil (10) of resilient material. According to the invention, said foil (10) is positioned between the second electrode layer (5) and the moisture-absorbing means (9). This feature results in a longer mean life-time of the OLED. Advantageously spacer structures (12) (preferably formed as dots) are applied on the separating foil (10) between the foil (10) and the cover (6). This prevents discoloring effects around the rim of the OLED material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.