E.i. Dupont De Nemours and Company

Dupont Displays Inc

E I Du Pont De Nemours and Company Dupont Displays Inc

Justin Butler

Reid John Chesterfield

Paul Anthony Sant

A process for forming a layer of an electroactive material, including: depositing a liquid composition containing an electroactive material and at least one solvent onto a workpiece to form a wet layer;

Process for forming an electroactive layer

There is provided a process for vacuum drying. The process includes the steps of: depositing a liquid composition containing a film-forming material and at least one solvent onto a workpiece to form a wet layer; placing the wet layer on the workpiece into a vacuum chamber including a condenser; and treating the wet layer at a controlled temperature in the range of &#x2212;25 to 80&#xb0; C. and under an applied vacuum in the range of 10to 1,000 Torr for a period of 1-100 minutes; wherein the condenser is maintained at a temperature at which the solvent will condense as a liquid at the applied vacuum.

There is provided a process for forming a layer of electroactive material having a substantially flat profile. The process includes: providing a workpiece having at least one active area; depositing a liquid composition including the electroactive material onto the workpiece in the active area, to form a wet layer; treating the wet layer on the workpiece at a controlled temperature in the range of &#x2212;25 to 80&#xb0; C. and under a vacuum in the range of 10to 1,000 Torr, for a first period of 1-100 minutes, to form a partially dried layer; heating the partially dried layer to a temperature above 100&#xb0; C. for a second period of 1-50 minutes to form a dried layer.

Growing community of inventors

San Diego, CA, United States of America

Justin Butler