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Stable and efficient transfer-printing including repair using a GaN-based microscale light-emitting diode array for deformable displays.

ABSTRACT: GaN-based microscale light-emitting diodes (?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.

SUBMITTER: Park JB

PROVIDER: S-EPMC6689111 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature

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Stable and efficient transfer-printing including repair using a GaN-based microscale light-emitting diode array for deformable displays.

Park Jun-Beom JB Lee Keon Hwa KH Han Sang Hoon SH Chung Tae Hun TH Kwak Moon Kyu MK Rho Hokyun H Jeong Tak T Ha Jun-Seok JS

Scientific reports 20190809 1

GaN-based microscale light-emitting diodes (μLEDs) 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 con ...[more]

PMID: 31399605

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