Red and Green Quantum Dot Color Filter for Full-Color Micro-LED Arrays

Bingxin Zhao; Qingqian Wang; Depeng Li; Hongcheng Yang; Xue Bai; Shang Li; Pai Liu; Xiaowei Sun

doi:10.3390/mi13040595

Micromachines (Apr 2022)

Red and Green Quantum Dot Color Filter for Full-Color Micro-LED Arrays

Bingxin Zhao,
Qingqian Wang,
Depeng Li,
Hongcheng Yang,
Xue Bai,
Shang Li,
Pai Liu,
Xiaowei Sun

Affiliations

Bingxin Zhao: The Theory Tech. Co., Ltd., Bao’an, Shenzhen 518126, China
Qingqian Wang: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Depeng Li: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Hongcheng Yang: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Xue Bai: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Shang Li: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Pai Liu: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China
Xiaowei Sun: Shenzhen Key Lab for Advanced Quantum Dot Display and Lighting, Department of Electrical & Electronic Engineering, Southern University of Science and Technology, Shenzhen 518005, China

DOI: https://doi.org/10.3390/mi13040595
Journal volume & issue: Vol. 13, no. 4
p. 595

Abstract

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This work demonstrated color-conversion layers of red and green quantum dots color filter for full-color display arrays. Ligands exchange using (3-glycidyloxypropyl) trimethoxysilane with epoxy functional groups to treat QDs in the liquid phase was performed for photolithography use. The combination of ligands of QDs with photo-initiator played a protective role on QDs. Moreover, the pixel size of green QDCF can be reduced to 50 μm, and a high optical density (OD) of 1.2 is realized.

Published in Micromachines

ISSN: 2072-666X (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Mechanical engineering and machinery
Website: https://www.mdpi.com/journal/micromachines

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