ViewSonic Corporation is a manufacturer and provider of visual technology, specifically CRT monitors, liquid crystal displays, projectors, plasma displays, HDTV technology, and mobile products, including Mini and All-in-One PCs and wireless monitors to great marks such as Asus, Acer and mutch more.The privately held company has approximately $1 billion in worldwide sales annually. ViewSonic's headquarters are located in Brea, California, United States.