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      The principle of the ultrasonic dry cleaning machine is that the high-pressure air knife generated by two nozzles can effectively remove the dust particles of 1.6-100μm. These dust particles are adsorbed to the vacuum chamber from two directions. Due to the high-speed air flow, the surface of the workpiece is A layer of mucous membrane is formed, and the ultrasonic energy can separate the particles adsorbed on the mucous membrane, and finally suck it into the vacuum chamber. After gluing, add a dry cleaner. Since wet cleaning has a destructive effect on the adhesive layer, while dry cleaning adopts a non-contact cleaning method, it will not damage the adhesive layer, thereby reducing the reject rate and increasing production efficiency. Add a dry cleaner before PI coating. Between the completion of cleaning after decoating and the PI film coating, the dust particles adsorbed by the material during handling will be effectively removed, thereby reducing the reject rate. Add dry cleaner after rubbing orientation. After rubbing orientation, a large amount of dust particles are produced. Among these dust particles, the dust particles above 1.6 μm are removed by dry cleaning machine, which saves considerable cost compared with wet cleaning, because wet cleaning requires a lot of consumables. Such as: purified water, other chemicals, etc. Therefore, before and after rubbing orientation. The combination of the two methods is the best solution. That is: first use a dry cleaning machine to remove dust particles above 1.6 μm. The remaining smaller dust particles are removed by wet cleaning. When spraying gaskets, add a dry cleaner. When spraying spacers, due to improper spraying, it is easy to cause glass plates that do not meet the requirements. If these unqualified glass plates are treated as waste products, it will cause great economic losses. The dry cleaning machine can completely remove the sprayed backing material on these unqualified glass plates. This enables the glass to be reused.