Dispersion, dispersion set, low refractive index layer, optical component, optical device, method for manufacturing a low refractive index layer, method for manufacturing an optical component, and method for manufacturing an optical device

A dispersion of alkoxysilane condensate particles with controlled concentration and viscosity addresses the issue of inconsistent film thickness in direct coating methods, ensuring uniformity and reducing light scattering in optical devices.

JP7885458B2Active Publication Date: 2026-07-06NITTO DENKO CORP
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Patent Information

Application Number
JP2025541028
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2024-02-22
Filing Date
2025-02-21
Publication Date
2026-07-06
Estimated Expiration
2045-02-21

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Abstract

To provide a dispersion liquid capable of ensuring the film thickness of a low refractive index layer and achieving in-plane film thickness uniformity.　A dispersion liquid in which particles are dispersed in a dispersion medium, wherein the particles are the condensation product of a raw material containing alkoxysilane, the concentration of the particles in the dispersion liquid is 3.5-15 wt %, the viscosity of the dispersion liquid is 4 mPa·s or more and less than 5000 mPa·s, and the particle diameter D50 of the particles is 20-400 nm.
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Citation Information

Patent Citations

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    WO2018143176A1