Violet tungsten oxide may be applied for preparing nano-ceramic dispersion solution, which has very good transparency (visible light transmittance) and can shield most of the infrared rays to reduce the heat energy generated by the near infrared rays. This dispersion can be used for the preparation of a heat-insulating film, or can be applied for heat insulating glass with good definition. Precautions for Nano-ceramic Dispersion Solution of Violet Tungsten Oxide 1. In order to maintain the quality of the dispersion,…