DigiPRINT was a two year, collaborative European
project involving UK-based CPI and Oxford Lasers,
as well as Spanish companies Sensofar-Tech and the
University of Barcelona to develop laser-assisted
digital fabrication methods for display backplane
manufacturing.
The project explored the low temperature, maskless
digital fabrication of organic thin-film transistors
(OTFTs) on large area rigid and flexible substrates used
in flexible display backplanes.
During the manufacturing of OTFT backplanes,
defects can occur at a number of different stages and
can be caused by anomalies, such as contamination
and thickness variations in the conductive and semi
conductive layers. Defects are highly detrimental to
the performance of the backplanes.
For the mass market adoption of flexible displays used
in future consumer devices such as bendy smartwatch
displays and foldable mobile phones, there is a need
throughout the industry to detect backplane defects
at high speed and using roll-to-roll manufacturing
techniques. To do this, specialist high speed and high
resolution systems are needed. The aim of DigiPRINT
was to developing the technologies and software
needed for the in-line detection and repair of micro
and nano-scale defects on backplanes at proof of
concept scale.
DigiPRINT was a two year, collaborative Europeanproject involving UK-based CPI and Oxford Lasers,as well as Spanish companies Sensofar-Tech and theUniversity of Barcelona to develop laser-assisteddigital fabrication methods for display backplanemanufacturing.The project explored the low temperature, masklessdigital fabrication of organic thin-film transistors(OTFTs) on large area rigid and flexible substrates usedin flexible display backplanes.During the manufacturing of OTFT backplanes,defects can occur at a number of different stages andcan be caused by anomalies, such as contaminationand thickness variations in the conductive and semiconductive layers. Defects are highly detrimental tothe performance of the backplanes.For the mass market adoption of flexible displays usedin future consumer devices such as bendy smartwatchdisplays and foldable mobile phones, there is a needthroughout the industry to detect backplane defectsat high speed and using roll-to-roll manufacturingtechniques. To do this, specialist high speed and highresolution systems are needed. The aim of DigiPRINTwas to developing the technologies and softwareneeded for the in-line detection and repair of microand nano-scale defects on backplanes at proof ofconcept scale.
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