Patent · US Active

Electro-wetting-on-dielectric printing

US7872660B2 · kind B2 · utility

1Cited by

2References

19Claims

0Family size

Assignee

HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

Jun Zeng · Palo Alto, US
Haggai Karlinski · Ramat Gan, IL

Key dates

Filing date	Feb 23, 2009
Grant date	Jan 18, 2011
Priority date	—
Expiry date	Feb 23, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2002/14395
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

An electro-wetting-on-dielectric printing system includes a drum and an electrode array disposed on a surface of the drum, which is made up of individually addressable electrodes and an ink-phobic coating overlaying the electrodes. Electrically charging a portion of the electrodes allows ink to adhere to a portion of the ink-phobic coating in proximity to the charged electrodes. A method for electro-wetting-on-dielectric printing includes selectively charging individually addressable electrodes within an electrode array, and passing the electrode array through an ink bath, wherein ink adheres areas proximate to charged electrodes to form an image. The image is then transferred to the substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.