一种红色发光材料、制备方法及其应用

CN117384619BActive Publication Date: 2026-07-17CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Filing Date
2023-10-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In Micro LED display technology, excessively large phosphor particles lead to uneven coating. Traditional dispensing processes cannot achieve a micron-scale fluorescent light-emitting layer, and the phosphor efficiency decreases significantly with size, making solution processing impossible.

Method used

This red luminescent material uses inorganic particles and a silicon-oxygen framework linked by chemical bonds. The material exists in a gel or sol state in a solvent, making it suitable for solution processing. It can form a flowing sol ink for inkjet printing and spin coating processes, ensuring that the luminescent particles do not settle.

Benefits of technology

It achieves uniform coating of small-sized phosphors, avoids the problem of uneven film layers, maintains high-efficiency luminescence performance, and is suitable for layer-by-layer processing of multilayer fluorescent films.

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Abstract

本申请提供的红色发光材料及制备方法,包括无机颗粒、硅氧骨架和有机溶剂,无机颗粒和硅氧骨架间通过化学键连接,无机颗粒的化学组分为含硅及Mn4+的氟化合物,硅氧骨架包括含硅和氧原子的单体,硅和氧原子交替连接形成主链且可与有机溶剂相溶以形成骨架结构,红色发光材料宏观表现为凝胶态,不具有肉眼可见的流动性;红色发光材料经过溶剂稀释后为溶胶态,具有流动性;红色发光材料经过干燥后为粉末态,将其分散在醇类或者其他有机溶剂中可形成流动的溶胶态油墨,进一步增加少量分散剂,可实现数小时甚至数十小时内无机发光颗粒不沉降的效果,可用于喷墨打印、旋涂、点胶等后续溶液加工工艺,解决传统荧光粉无法进行溶液加工的问题。
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