TY - JOUR
T1 - Flexible high-resolution micro-LED display device with integrations of transparent, conductive, and highly elastic hydrogel
AU - Wang, Jiangwen
AU - Niu, Jianan
AU - Sha, Wei
AU - Dai, Xinhuan
AU - Huang, Tianci
AU - Hua, Qilin
AU - Long, Yong
AU - Xiao, Junfeng
AU - Hu, Weiguo
N1 - Publisher Copyright:
© 2023, Tsinghua University Press.
PY - 2023/9
Y1 - 2023/9
N2 - Computer vision techniques are real-time, immersive, and perceptual human-computer interaction technology. Excellent display effect, dynamic surface flexibility, and safe bio-adhesion are essential for various human–computer interaction applications, such as metaverse interfaces, skin-like sensors, and optoelectronic medical devices. However, realizing the flexible matching of inorganic optoelectronic devices and organisms remains a grand challenge for current display technologies. Here, we proposed a novel strategy by combining the optoelectronic advantages of inorganic micro light emitting diode (micro-LED) display and the extraordinary mechanical/biological compatibility of organic materials to overcome this challenge. A highly elastic (greater than 2000% strain), highly transparent (94% visible light transmittance), biocompatible conductive hydrogel composite electrode layer was fabricated. For the first time, we realized the on-chip electrical interconnection of 4900 LED units to form a blue-green light display patch with high resolution (264 PPI), low power consumption (4.4 mW) and adaptive surface attachment. This work demonstrates an integrated scheme and potential applications of flexible high-resolution microdisplays, such as wearable full-color micro-LED smart curved display devices and conformable biomedical monitoring systems.[Figure not available: see fulltext.]
AB - Computer vision techniques are real-time, immersive, and perceptual human-computer interaction technology. Excellent display effect, dynamic surface flexibility, and safe bio-adhesion are essential for various human–computer interaction applications, such as metaverse interfaces, skin-like sensors, and optoelectronic medical devices. However, realizing the flexible matching of inorganic optoelectronic devices and organisms remains a grand challenge for current display technologies. Here, we proposed a novel strategy by combining the optoelectronic advantages of inorganic micro light emitting diode (micro-LED) display and the extraordinary mechanical/biological compatibility of organic materials to overcome this challenge. A highly elastic (greater than 2000% strain), highly transparent (94% visible light transmittance), biocompatible conductive hydrogel composite electrode layer was fabricated. For the first time, we realized the on-chip electrical interconnection of 4900 LED units to form a blue-green light display patch with high resolution (264 PPI), low power consumption (4.4 mW) and adaptive surface attachment. This work demonstrates an integrated scheme and potential applications of flexible high-resolution microdisplays, such as wearable full-color micro-LED smart curved display devices and conformable biomedical monitoring systems.[Figure not available: see fulltext.]
KW - InGaN/GaN
KW - flexible
KW - hydrogel
KW - micro light emitting diode (micro-LED)
UR - http://www.scopus.com/inward/record.url?scp=85161451048&partnerID=8YFLogxK
U2 - 10.1007/s12274-023-5731-x
DO - 10.1007/s12274-023-5731-x
M3 - Article
AN - SCOPUS:85161451048
SN - 1998-0124
VL - 16
SP - 11893
EP - 11899
JO - Nano Research
JF - Nano Research
IS - 9
ER -