Through the application of copper chromium high resistance characteristics, can be made of a transparent conductive copper chromium oxide, due to its transparent and conductive properties of two types, the copper chromium in recent years become one of the indispensable materials in optoelectronic technology, widely used in optoelectronic products, such as touch panel (Touch panel), Liquid crystal (liquid crystal display LED (solarcell), solar cells) and the common photoelectric element.