Park Jun-Beom, Lee Keon Hwa, Han Sang Hoon, Chung Tae Hun, Kwak Moon Kyu, Rho Hokyun, Jeong Tak, Ha Jun-Seok
Korea Photonics Technology Institute, Photonic Device Research Center, 124, Cheomdanventure-ro, Buk-gu, Gwangju, 61007, Republic of Korea.
Chonnam National University, Optoelectronics Convergence Research Center, 77, Yongbong-ro, Buk-gu, Gwangju, 61186, Republic of Korea.
Sci Rep. 2019 Aug 9;9(1):11551. doi: 10.1038/s41598-019-47449-1.
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 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.
据报道，基于氮化镓的微型发光二极管（μLED）可用于组装成可变形显示器和修复系统。该系统采用了一种能够实现大面积组装且不受空间限制的压印方法，并提出了一种选择性拾取方法，其中包括通过微脉冲激光扫描去除检测到的有缺陷芯片的方法。通过控制附着力来确定作为芯片稳定压印的接受层的光敏功能材料。此外，选择性拾取和附着力控制的功能材料允许通过两个拾取和放置循环实现无缺陷显示器。用这种方法制造的显示器和相关系统可以提供有趣的光学和电学特性。
