Gas cushion control of OVJP print head position
Abstract
An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Michigan, Ann Arbor, MI (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1160215
- Patent Number(s):
- 8851597
- Application Number:
- 13/807,878
- Assignee:
- The Regents of the University of Michigan (Ann Arbor, MI)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B41 - PRINTING B41J - TYPEWRITERS
- DOE Contract Number:
- SC0002122
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 2011 Jul 01
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Forrest, Stephen R. Gas cushion control of OVJP print head position. United States: N. p., 2014.
Web.
Forrest, Stephen R. Gas cushion control of OVJP print head position. United States.
Forrest, Stephen R. Tue .
"Gas cushion control of OVJP print head position". United States. https://www.osti.gov/servlets/purl/1160215.
@article{osti_1160215,
title = {Gas cushion control of OVJP print head position},
author = {Forrest, Stephen R},
abstractNote = {An OVJP apparatus and method for applying organic vapor or other flowable material to a substrate using a printing head mechanism in which the print head spacing from the substrate is controllable using a cushion of air or other gas applied between the print head and substrate. The print head is mounted for translational movement towards and away from the substrate and is biased toward the substrate by springs or other means. A gas cushion feed assembly supplies a gas under pressure between the print head and substrate which opposes the biasing of the print head toward the substrate so as to form a space between the print head and substrate. By controlling the pressure of gas supplied, the print head separation from the substrate can be precisely controlled.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {10}
}
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