ViewSonic Corporation is a multinational electronics company specializing in visual display technology, specifically liquid-crystal displays, projectors, modern educational display technology and more.

The privately held company has approximately $1 billion in worldwide sales annually. ViewSonic’s headquarters are located in Brea, California, United States and New Taipei City, Taiwan. The company was initially founded as Keypoint Technology Corporation in 1987 by James Chu. In 1990 it launched the ViewSonic line of color computer monitors, and shortly afterwards the company renamed itself after its brand.In 2005, ViewSonic and Tatung won a British patent lawsuit filed against them by LG Philips in a dispute over which company created technology for rear mounting of LCDs in a mobile PC (U.K. Patent GB2346464B, titled “portable computer”).