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.

ViewSonic is known for carrying a standard 3 year warranty on most of its display products, while most other manufacturer's only have a 1 year warranty.[1] The privately held company has approximately $1 billion in worldwide sales annually. ViewSonic's headquarters are located in Walnut, California, United States.

Source: Wikipedia