Journal
SCIENTIFIC REPORTS
Volume 9, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-019-47449-1
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Funding
- Priority Research Centers Program through the National Research Foundation of Korea(NRF) - Ministry of Education, Science and Technology [2018R1A6A1A03024334]
- Basic Science Research Program through the NRF - Ministry of Education, Science and Technology [NRF2018R1D1A1B07051009]
- R&D Program of the Ministry of Trade, Industry and Energy [10070201]
- International R&D Collaboration of Ministry of Trade, Industry and Energy [P019800005]
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GaN-based microscale light-emitting diodes (mu LEDs) are reported for assembly into deformable displays and repair systems. A stamp-imprinting method that enables large area assembly without spatial limitation is involved in the system, and a selective pick-up method is presented that includes a method for removing detected defective chips through micro-pulsed laser scanning. The photosensitive functional material, which is an accepted layer for the stable imprinting of chips, is determined by controlling the adhesion. In addition, selective pick-up and adhesion-controlled functional materials allow the implementation of defect-free displays through two pick-and-place cycles. Displays and related systems fabricated with this method can offer interesting optical and electrical properties.
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