Patent · US Active

Polymer and small molecule based hybrid light source

US7679282B2 · kind B2 · utility

2Cited by

7References

26Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Vi-En Choong · Tempe, US
Stelios A. Choulis · Limassol, CY
Benjamin Claus Krummacher · Regensburg, DE
Mathew K. Mathai · Monroeville, US
Franky So · Tempe, US

Key dates

Filing date	Dec 5, 2005
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Jun 17, 2027

Classification

Technology area (CPC H)Electricity
CPC primaryH10K2101/10

Abstract

An organic electroluminescent device, includes: a substrate; a hole-injecting electrode (anode) coated over the substrate; a hole injection layer coated over the anode; a hole transporting layer coated over the hole injection layer; a polymer based light emitting layer, coated over the hole transporting layer; a small molecule based light emitting layer, thermally evaporated over the polymer based light emitting layer; and an electron-injecting electrode (cathode) deposited over the electroluminescent polymer layer.

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