Advanced Functional Materials · 2019 · 209 citations · 112 references
EngineeringBioengineeringBiomedical EngineeringMicroelectronicsOptoelectronicsSensorsDisplay TechnologiesImplantable Biomedical DevicesImplantable MicrodevicesLight-emitting DiodesOptoelectronic DevicesOptoelectronic MaterialsBiomedical ApplicationsDevice PackagingFlexible Light-emitting DiodesLight-emitting DevicesMicro-led DisplaysMicro-ledsOptoelectronic PropertiesSmart Watches
Abstract Inorganic‐based micro light‐emitting diodes (µLEDs) have witnessed significant improvements in terms of display and biomedical applications, which can shift the paradigm of future optoelectronic systems. In particular, µLED displays are on the verge of becoming the next big interface platform for visual communications, expanding to various internet of things and wearable/bioapplications. Novel µLED concepts need to be upgraded to be able to satisfy their potential optoelectric applications, such as virtual reality, smart watches, and medical sensors for individual computing in this hyperconnected society. Here, representative progresses in the field of flexible µLEDs are reviewed with regard to device structures, massive µLED transfers, methods for performance enhancement, and applications.
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