Quantum dots based full-color display on micro-light-emitting-diode technology

Lin，Chih Hao1; Lee，Chun Fu1; Lin，Chien Chung2; Chu，Chen Hsien2; Sher，Chin Wei3; Liu，Zhao Jun4; Kuo，Hao Chung1

10.1002/SDTP.12698

2018

0097-966X

2168-0159

Digest of Technical Papers - SID International Symposium

49

S1

267-270

In this study, we would like to demonstrate a quantum-dot (QD)- based full-color emission red–green–blue (RGB) micro-light-emitting-diode (micro-LED) array with the reduced optical cross-talk effect by a photoresist mold method. The UV micro-LED array is used as an efficient excitation source for the QDs. The aerosol jet technique provides a narrow linewidth on the micrometer scale for a precise jet of QDs on the micro-LEDs. In order to reduce the optical cross-talk effect, a simple lithography method and photoresist are used to fabricate the mold, which consists of a window for QD jetting and a blocking wall for cross-talk reduction. The cross-talk effect of the well-confined QDs in the window is confirmed by a fluorescence microscope, which shows clear independence QD pixels. A distributed Bragg reflector is covered on the micro-LED array and the QDs’ jetted mold to further increase the reuse of UV light. The enhanced light emission of the QDs is 5%, 32%, and 23% for blue, green, and red QDs, respectively.

light emitting diode micro display micro LED quantum dot

Others

English

2-s2.0-85068760047

Scopus

1.Department of Photonics and Institute of Electro-Optical Engineering,National Chiao Tung University,Hsinchu,30010,Taiwan
2.Institute of Photonic System,National Chiao Tung University,Tainan,711,Taiwan
3.Fok Ying Tung Research Institute,Hong Kong University of Science and Technology,Hong Kong
4.Department Of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,China

Lin，Chih Hao,Lee，Chun Fu,Lin，Chien Chung,et al. Quantum dots based full-color display on micro-light-emitting-diode technology[C],2018:267-270.