Dust and dirt are the greatest enemies of LCD panels. Even the smallest speck of dust stuck to a panel in the manufacturing process will negatively affect the precision circuit, which activates pixels. Full-HD LCD TVs have about two million pixels, and every single pixel must function without problems. The clean room at the Kameyama Plant boasts a high level of cleanliness, allowing only a few grains of pollen to penetrate an area the size of, for example, a baseball stadium. Although large glass substrates are continually carried in and out during the manufacturing process, Sharp keeps this level of cleanliness with proprietary technology.