Composition having improved performance

US9379323B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Mark James · Romsey, GB
• Magda Goncalves-Miskiewicz · Southampton, GB
• Philip Edward May · Sidcup, GB
• Ruth Effenberger · Undenheim, DE
• Edgar Kluge · Groß-Gerau, DE
• Heinrich Becker · Königstein, DE

Key dates

• Filing date: Apr 5, 2011
• Grant date: Jun 28, 2016
• Expiry date: Feb 10, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10

Abstract

The present invention relates to novel compositions comprising light emitting materials and/or charge transporting materials and one or more organic solvents having a viscosity at 25° C. of at least 10 mPas and a boiling point of at most 400° C., to their use as inks for the preparation of organic light emitting diode (OLED) devices, to methods for preparing OLED devices using the novel formulations, and to OLED devices prepared from such methods and formulations.