Patent ID: 9337426
Filing Date: 2016-05-10
CPC Classification: H01L

Claim Text:
1. A method of fabricating an organic electronic device using ink jet printing by printing interlaced patterns in adjacent swathes, each swathe comprising a plurality of columns, the columns having sets of print locations, the method comprising: providing a print head including at least first and second nozzle regions; generating at least first and second random swathe patterns for a first swathe by randomly defining print locations from the sets of print locations to be filled in a first print pass by said first nozzle region of the print head, said first nozzle region comprising a first plurality of nozzles, and in an at least second print pass by said second nozzle region of the print head, said second nozzle region comprising a second plurality of nozzles that is different from the first plurality of nozzles, wherein the number of print locations to be filled in each pass is less than the total number of print locations in each column; in a first print pass of the print head, depositing an ink from the first nozzle region into the print locations defined to be filled in the first pass, the first print pass using only the first nozzle region to deposit into the print locations defined to be filled in the first pass; in the at least second print pass of the print head, depositing an ink from the at least second nozzle region into the print locations defined to be filled in the at least second pass, the second pass following the first pass and using only the second nozzle region to deposit into the print locations defined to be filled in the second pass; regularly repeating the at least first and second random swathe patterns for an at least second swathe; in a first additional print pass of the print head, depositing the ink from the first nozzle region into print locations defined to be filled in the first additional pass; in an at least second additional print pass of the print head, depositing the ink from the at least second nozzle region into print locations defined to be filled in the at least second pass; wherein the second print pass of the print head overlaps the first print pass of the print head; wherein the at least second additional print pass of the print head overlaps the first additional print pass of the print head; wherein after all print passes are complete, all randomly defined print locations in the adjacent swathes have been filled in an interlaced pattern.