Add-Vision, Inc.

John G Victor

Matthew C Wilkinson

Susan A Carter

Jane Breeden

Sue Carter

Sara Tuttle

The addition of a variety of additives to a soluble electroluminescent polymer in solution is used to improve the printability and performance of screen printed light-emitting polymer-based devices. Examples of such additives include transparent polymers, gel-retarders, high viscosity liquids, organic and inorganic salts, and oxide nanoparticles. The additives are used to control the viscosity of the electroluminescent polymer ink, to decrease the solvent evaporation rate, and to improve the ink consistency and working time. In addition, these additives can improve the charge injection and power efficiency of light emitting devices manufactured from the screen printable electroluminescent polymer ink.

Screen printable electroluminescent polymer ink

Described is a process for manufacturing a light emitting polymer device comprising, in one embodiment, the steps of providing a transparent or non-transparent electrode-containing substrate adapted to act as a first electrode, screen printing a light emitting polymer layer, which is composed of a light emitting polymer dissolved in a solvent, onto the hole injection layer and screen printing a hole injection layer onto the transparent electrode-containing substrate on one side of the light emitting polymer layer.

Growing community of inventors

Chicago, IL, United States of America

John G Victor