Technology and Applications of Micro-LEDs: Their Characteristics, Fabrication, Advancement, and Challenges

Tzu Yi Lee; Li Yin Chen; Yu Yun Lo; Sujith Sudheendran Swayamprabha; Amit Kumar; Yu Ming Huang; Shih Chen Chen; Hsiao Wen Zan; Fang Chung Chen; Ray Hua Horng; Hao Chung Kuo

doi:10.1021/acsphotonics.2c00285

Technology and Applications of Micro-LEDs: Their Characteristics, Fabrication, Advancement, and Challenges

Tzu Yi Lee, Li Yin Chen^*, Yu Yun Lo, Sujith Sudheendran Swayamprabha, Amit Kumar, Yu Ming Huang, Shih Chen Chen, Hsiao Wen Zan, Fang Chung Chen^*, Ray Hua Horng^*, Hao Chung Kuo^*

^*Corresponding author for this work

Research output: Contribution to journal › Review article › peer-review

57 Scopus citations

Abstract

Micro-light-emitting diodes (μLEDs) are getting much attention in display industry because of their outstanding optical and electrical characteristics. μLEDs have several advantages over liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs). μLEDs are showing long lifetimes, high reliability, high power efficiencies, high brightness, and fast response times with tiny pixels. However, for commercial usage, the high production cost and low external quantum efficiency (EQE) are the major hurdles. In this review, we briefly discuss the breakthroughs in μLED technology, fabrication methods, optical/electrical characteristics, and challenges for display applications. In addition, the development of monolithic μLEDs and general device characteristics combined with various quantum dot patterning processes are systematically discussed. Potential solutions to address these challenges are also presented case by case.

Original language	English
Pages (from-to)	2905-2930
Number of pages	26
Journal	ACS Photonics
Volume	9
Issue number	9
DOIs	https://doi.org/10.1021/acsphotonics.2c00285
State	Published - 21 Sep 2022

Keywords

Color-conversion method
Full-color display
Monolithic μLEDs
Nanostructure
Visible light communication
μLED

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title = "Technology and Applications of Micro-LEDs: Their Characteristics, Fabrication, Advancement, and Challenges",

abstract = "Micro-light-emitting diodes (μLEDs) are getting much attention in display industry because of their outstanding optical and electrical characteristics. μLEDs have several advantages over liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs). μLEDs are showing long lifetimes, high reliability, high power efficiencies, high brightness, and fast response times with tiny pixels. However, for commercial usage, the high production cost and low external quantum efficiency (EQE) are the major hurdles. In this review, we briefly discuss the breakthroughs in μLED technology, fabrication methods, optical/electrical characteristics, and challenges for display applications. In addition, the development of monolithic μLEDs and general device characteristics combined with various quantum dot patterning processes are systematically discussed. Potential solutions to address these challenges are also presented case by case.",

keywords = "Color-conversion method, Full-color display, Monolithic μLEDs, Nanostructure, Visible light communication, μLED",

author = "Lee, {Tzu Yi} and Chen, {Li Yin} and Lo, {Yu Yun} and Swayamprabha, {Sujith Sudheendran} and Amit Kumar and Huang, {Yu Ming} and Chen, {Shih Chen} and Zan, {Hsiao Wen} and Chen, {Fang Chung} and Horng, {Ray Hua} and Kuo, {Hao Chung}",

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year = "2022",

month = sep,

day = "21",

doi = "10.1021/acsphotonics.2c00285",

language = "English",

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T2 - Their Characteristics, Fabrication, Advancement, and Challenges

AU - Lee, Tzu Yi

AU - Chen, Li Yin

AU - Lo, Yu Yun

AU - Swayamprabha, Sujith Sudheendran

AU - Kumar, Amit

AU - Huang, Yu Ming

AU - Chen, Shih Chen

AU - Zan, Hsiao Wen

AU - Chen, Fang Chung

AU - Horng, Ray Hua

AU - Kuo, Hao Chung

PY - 2022/9/21

Y1 - 2022/9/21

N2 - Micro-light-emitting diodes (μLEDs) are getting much attention in display industry because of their outstanding optical and electrical characteristics. μLEDs have several advantages over liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs). μLEDs are showing long lifetimes, high reliability, high power efficiencies, high brightness, and fast response times with tiny pixels. However, for commercial usage, the high production cost and low external quantum efficiency (EQE) are the major hurdles. In this review, we briefly discuss the breakthroughs in μLED technology, fabrication methods, optical/electrical characteristics, and challenges for display applications. In addition, the development of monolithic μLEDs and general device characteristics combined with various quantum dot patterning processes are systematically discussed. Potential solutions to address these challenges are also presented case by case.

AB - Micro-light-emitting diodes (μLEDs) are getting much attention in display industry because of their outstanding optical and electrical characteristics. μLEDs have several advantages over liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs). μLEDs are showing long lifetimes, high reliability, high power efficiencies, high brightness, and fast response times with tiny pixels. However, for commercial usage, the high production cost and low external quantum efficiency (EQE) are the major hurdles. In this review, we briefly discuss the breakthroughs in μLED technology, fabrication methods, optical/electrical characteristics, and challenges for display applications. In addition, the development of monolithic μLEDs and general device characteristics combined with various quantum dot patterning processes are systematically discussed. Potential solutions to address these challenges are also presented case by case.

KW - Color-conversion method

KW - Full-color display

KW - Monolithic μLEDs

KW - Nanostructure

KW - Visible light communication

KW - μLED

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DO - 10.1021/acsphotonics.2c00285

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JO - ACS Photonics

JF - ACS Photonics

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ER -

Technology and Applications of Micro-LEDs: Their Characteristics, Fabrication, Advancement, and Challenges

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Keywords

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