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全彩微 LED 显示器，采用可光图案化和高度环境稳定的钙钛矿量子点/硅氧烷复合材料作为色彩转换层。

Full-color micro-LED display with photo-patternable and highly ambient-stable perovskite quantum dot/siloxane composite as color conversion layers.

机构信息

Department of Nano-Mechanics, Korea Institute of Machinery & Materials (KIMM), 156, Gajeongbuk-ro, Yuseong-gu, Daejeon, 34103, Republic of Korea.

Department of Nanomechatronics, University of Science and Technology (UST), Daejeon, 34113, Republic of Korea.

出版信息

Sci Rep. 2023 Mar 24;13(1):4836. doi: 10.1038/s41598-023-31945-6.

DOI:10.1038/s41598-023-31945-6
PMID:36964232
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10039071/
Abstract

In 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.

摘要

在本文中，我们成功地使用钙钛矿量子点（PQD）/硅氧烷复合材料通过配体交换 PQD 与硅烷复合材料，然后通过添加含卤阴离子盐进行表面活化，为全彩色微型 LED 显示器制造了颜色转换层（CCL）。由于这种表面活化，有可能使用不会损坏 PQD 的非极性有机溶剂在 PQD 表面构建硅烷配体。结果，用硅烷化合物交换的 PQD 在硅氧烷基质中表现出高分散性和由于溶胶-凝胶缩合而具有优异的大气稳定性。基于高度稳定的基于 PQD/硅氧烷复合材料的 CCL，全彩色微型 LED 显示器具有 1mm 的像素间距，实现了约 25.4 像素每英寸（PPI）的分辨率。此外，由于黑色矩阵的厚度很薄，可以防止蓝光干扰，因此即使弯曲半径为 5mm，也可以展示出无需损坏即可操作的柔性显示器的可能性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/9925a5de2c6d/41598_2023_31945_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/3df0c532fe3b/41598_2023_31945_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/066cb654cc58/41598_2023_31945_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/aaf618abd386/41598_2023_31945_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/62a52d1ab362/41598_2023_31945_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/9925a5de2c6d/41598_2023_31945_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/3df0c532fe3b/41598_2023_31945_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/066cb654cc58/41598_2023_31945_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/aaf618abd386/41598_2023_31945_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/62a52d1ab362/41598_2023_31945_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d105/10039071/9925a5de2c6d/41598_2023_31945_Fig5_HTML.jpg

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