Multicolor electronic devices and processes of forming the same by printing

US8619326B2 · kind B2 · utility

Assignee

• E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

• Nugent Truong · Ventura, US
• Matthew Stainer · Phoenix, US

Key dates

• Filing date: Jun 3, 2010
• Grant date: Dec 31, 2013
• Expiry date: Sep 17, 2030

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K71/135
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

Disclosed is process of forming a regular array of rows of subpixels on a workpiece. The subpixels having four different colors, and a subpixel pitch s. Of the four colors, q colors are formed by printing and r colors are formed by a non-printing method. The process includes the steps: (1) providing a printing head having z nozzles arranged in a row with a spacing between the nozzles of p, where z=4n1 and p=3s, the printing head being at a first position relative to the workpiece; (2) providing q different printing inks, one for each of the q printed colors; (3) supplying each of the printing inks to the nozzles in a regular alternating pattern; (4) printing a first set of z rows of subpixels with the printing head; (5) moving and printing in a first printing pattern by: (a) moving the workpiece laterally relative to the printing head by a distance d1, where d1=4n2s; (b) printing a set of z rows of subpixels with the printing head; (6) moving and printing in a second printing pattern by: (c) moving the workpiece laterally relative to the printing head by a distance d2, where d2=d1; (d) printing a set of z rows of subpixels with the printing head; (7) moving and printing in a third …