Author:
Shim Hyung Cheoul,Kim Juho,Park So Yeon,Kim Bong Sung,Jang Bongkyun,Lee Hak-Joo,Kim Areum,Hyun Seungmin,Kim Jae-Hyun
Abstract
AbstractIn this paper, we successfully fabricated color conversion layers (CCLs) for full-color-mico-LED display using a perovskite quantum dot (PQD)/siloxane composite by ligand exchanged PQD with silane composite followed by surface activation by an addition of halide-anion containing salt. Due to this surface activation, it was possible to construct the PQD surface with a silane ligand using a non-polar organic solvent that does not damage the PQD. As a result, the ligand-exchanged PQD with a silane compound exhibited high dispersibility in the siloxane matrix and excellent atmospheric stability due to sol–gel condensation. Based on highly ambient stable PQD/siloxane composite based CCLs, full-color micro-LED display has a 1 mm pixel pitch, about 25.4 pixels per inch (PPI) resolution was achieved. In addition, due to the thin thickness of the black matrix to prevent blue light interference, the possibility of a flexible display that can be operated without damage even with a bending radius of 5 mm was demonstrated.
Funder
Center for Advanced Meta-Materials (CAMM), funded by the Ministry of Science, ICT, and Future Planning as a Global Frontier Project
Korea Institute for Advancement of Technology
Korea Institute of Machinery and Materials
National Research Council of Science & Technology (NST) - Korea Institute of Machinery & Materials
Publisher
Springer Science and Business Media LLC
Cited by
2 articles.
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