Micro-light-emitting diodes with quantum dots in display technology

Liu，Zhaojun1; Lin，Chun Ho2; Hyun，Byung Ryool1; Sher，Chin Wei3,4; Lv，Zhijian1; Luo，Bingqing5; Jiang，Fulong1; Wu，Tom2; Ho，Chih Hsiang6; Kuo，Hao Chung4; He，Jr Hau7

2020-12-01

10.1038/s41377-020-0268-1

Light:Science & Applications   Impact Factor & Quartile

2095-5545

2047-7538

Micro-light-emitting diodes (μ-LEDs) are regarded as the cornerstone of next-generation display technology to meet the personalised demands of advanced applications, such as mobile phones, wearable watches, virtual/augmented reality, micro-projectors and ultrahigh-definition TVs. However, as the LED chip size shrinks to below 20 μm, conventional phosphor colour conversion cannot present sufficient luminance and yield to support high-resolution displays due to the low absorption cross-section. The emergence of quantum dot (QD) materials is expected to fill this gap due to their remarkable photoluminescence, narrow bandwidth emission, colour tuneability, high quantum yield and nanoscale size, providing a powerful full-colour solution for μ-LED displays. Here, we comprehensively review the latest progress concerning the implementation of μ-LEDs and QDs in display technology, including μ-LED design and fabrication, large-scale μ-LED transfer and QD full-colour strategy. Outlooks on QD stability, patterning and deposition and challenges of μ-LED displays are also provided. Finally, we discuss the advanced applications of QD-based μ-LED displays, showing the bright future of this technology.

SCI ; EI

English

ESI Highly Cited Papers

First

Ministry of Science and Technology, Taiwan[107-2221-E-009-113-MY3];

WOS:000534329400001

20202008657667

Color ; Organic light emitting diodes (OLED) ; Nanocrystals ; Wearable technology

Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Crystalline Solids:933.1

2-s2.0-85084414003

Scopus

1.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,China
2.School of Materials Science and Engineering,University of New South Wales (UNSW),Sydney,2052,Australia
3.Department of Electronic and Computer Engineering,Hong Kong University of Science and Technology,Hong Kong
4.Department of Photonics and Institute of Electro-Optical Engineering,College of Electrical and Computer Engineering,Chiao Tung University,Hsinchu,30010,Taiwan
5.School of Innovation and Entrepreneurship,Southern University of Science and Technology,Shenzhen,China
6.Raysolution LLC,San Jose,95129,United States
7.Department of Materials Science and Engineering,City University of Hong Kong,Hong Kong

Liu，Zhaojun,Lin，Chun Ho,Hyun，Byung Ryool,et al. Micro-light-emitting diodes with quantum dots in display technology[J]. Light:Science & Applications,2020,9(1).

Liu，Zhaojun.,Lin，Chun Ho.,Hyun，Byung Ryool.,Sher，Chin Wei.,Lv，Zhijian.,...&He，Jr Hau.(2020).Micro-light-emitting diodes with quantum dots in display technology.Light:Science & Applications,9(1).

Liu，Zhaojun,et al."Micro-light-emitting diodes with quantum dots in display technology".Light:Science & Applications 9.1(2020).