Ink composition, preparation method of ink composition and manufacturing method of color filter
By copolymerizing quantum dots with silsesquioxane or alkoxysilane, a stable ink composition is formed, which solves the problem of instability in quantum dot coagulation and ejection in inkjet technology, and achieves stable dispersion of high-concentration quantum dots and high-reliability reproduction of patterns.
Patent Information
- Application Number
- CN202380060513.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-08-23
- Filing Date
- 2023-08-08
- Publication Date
- 2025-03-18
AI Technical Summary
When inkjet technology forms fine patterns below 100 μm for use in micro LEDs, there are problems such as ink viscosity, evaporation speed and quantum dot concentration, which lead to nozzle blockage and instability in the discharge. The poor dispersion of quantum dots in polar resin leads to coagulation, which affects the reproducibility and reliability of the pattern.
By copolymerizing quantum dots with silsesquioxane or copolymerizing with alkoxysilane, a silsesquioxane polymer is formed and cured by cross-linking reactions, thereby preparing an ink composition that can be dispersed at high concentrations without coagulation.
It realizes stable dispersion of quantum dots at high concentrations, avoids nozzle blockage and instability in spitting, improves pattern reproducibility and reliability, and is suitable for applications such as inkjet manufacturing color filters.