In the touch screen, ITO glass plays a crucial role, so let's talk about the production process and structure of ITO glass.
ITO conductive glass is fabricated by magnetron sputtering on the basis of sodium-calcium-based or borosilicate substrate glass coated with indium tin oxide (commonly known as ITO) film. LCD dedicated ITO conductive glass, will also be coated with a layer of silicon dioxide barrier layer before the ITO layer, in order to prevent the sodium ions on the substrate glass to diffuse into the liquid crystal in the box. The substrate glass of dedicated ITO glass for high-end LCD should be polished before spluttering ITO layer to obtain more uniform display control. LCD dedicated ITO glass substrate generally belongs to the superfloat glass, all coated surface for glass float tin surface. Therefore, the final liquid crystal display will be along the float direction, the regular appearance of wavy uneven situation.
The main component of ITO film is indium tin oxide. At a thickness of only a few thousand angstroms indium oxide has a high transmittance of oxygen
The ITO glass used for liquid crystal display is a kind of conductive glass with high transmittance. Because ITO has a strong water absorption, it will absorb moisture and carbon dioxide in the air and produce a chemical reaction to deteriorate, commonly known as "mildew", so when stored to prevent moisture.