Kateeva, Inc.

Thin Film Electronics Asa

Inna Tregub

Michelle Chan

Rajsapan Jain

Tane Boghozian

Jianglong Chen

Klaus Kunze

Conor Francis Madigan

Arvind Kamath

Wenzhuo Guo

Steven A Van Slyke

Li Li

Junfeng Mei

Aditi Chandra

Mao Takashima

Brian Bedwell

Citra Yuwono

Ian Millard

Jun Li

Ink compositions for forming active layers in an organic light-emitting diode are provided. Also provided are methods of forming active layers of an OLED using the ink compositions. The ink compositions comprise a solvent system in which a substantial majority of the solvent is comprised of one or more ester compounds.

Ester-based solvent systems for printable organic light-emitting diode ink formulations

The present teachings relate to various embodiments of an ink composition, which once printed and cured forms an organic thin film on a substrate such as, but not limited by, an OLED device substrate. Various embodiments of the ink compositions comprise polyethylene glycol di(meth)acrylate monomers, mono(meth)acrylate monomers and multifunctional crosslinking agents.

Di- and mono(meth)acrylate based organic thin film ink compositions

Ink compositions formulated for inkjet printing the hole injecting layer (HIL) or hole transporting layer (HTL) of an organic light emitting diode (OLED) are provided. The ink compositions comprise fluorosurfactants that prevent uncontrolled spreading of the printed ink compositions. Also provided are methods of inkjet printing the HILs or HTLs using the ink compositions.

Fluorosurfactant-containing ink compositions for inkjet printing

The present teachings relate to various embodiments of an ink composition, which once printed and cured forms an organic thin film on a substrate such as, but not limited by, an OLED device substrate. Various embodiments of the ink can be printed using an industrial inkjet printing system that can be housed in a gas enclosure, which gas enclosure defines an interior that has a controlled environment maintained as an inert and substantially low-particle process environment. Patterned printing of an organic thin film on a substrate, for example, but not limited by, an OLED device substrate, in such a controlled environment can ensure a high-volume, high yield process for a variety of OLED devices.

Organic thin film ink compositions and methods

Ink compositions formulated for inkjet printing the hole injecting layer (HIL) or hole transporting layer (HTL) of an organic light emitting diode (OLED) are provided. The ink compositions contain fluorosurfactants that prevent uncontrolled spreading of the printed ink compositions. Also provided are methods of inkjet printing the HILs or HTLs using the ink compositions.

Printable dopant formulations, methods of making such dopant formulations, and methods of using such dopant formulations are disclosed. The dopant formulations provide a printable dopant ink with a viscosity sufficient to prevent ink spreading when deposited in a pattern on a substrate. Furthermore, an ion exchange purification process provides the dopant formulation with a reduced metal ion concentration, and thus a relatively high purity level. Consequently, the dopant residue remaining on the substrate after curing and/or dopant activation process is relatively uniform, and therefore can be easily removed.

Dopant inks, methods of making dopant inks, and methods of using dopant inks

Ink compositions comprising polythiophenes and aprotic organic solvents that are formulated for inkjet printing the hole injecting layer (HIL) of an organic light emitting diode (OLED) are provided. Also provided are methods of inkjet printing the HILs using the ink compositions.

Polythiophene-containing ink compositions for inkjet printing

Ink compositions comprising polythiophenes and methicone that are formulated for inkjet printing the hole injecting layer (HIL) of an organic light emitting diode (OLED) are provided. Also provided are methods of inkjet printing the HILs using the ink compositions.

The present teachings provide methods for forming organic layers for an organic light-emitting device (OLED) using an inkjet printing or thermal printing process. The method can further use one or more additional processes, such as vacuum thermal evaporation (VTE), to create an OLED stack. OLED stack structures are also provided wherein at least one of the charge injection or charge transport layers is formed by an inkjet printing or thermal printing method at a high deposition rate. The structure of the organic layer can be amorphous, crystalline, porous, dense, smooth, rough, or a combination thereof, depending on deposition parameters and post-treatment conditions. An OLED microcavity is also provided and can be formed by one of more of the methods.

Growing community of inventors

San Jose, CA, United States of America

Inna Tregub