A jumbotron, sometimes referred to as jumbovision, is a video display using large-screen television technology (video wall). The original technology was developed in the early 1980s by Mitsubishi Electric and Sony, which coined JumboTron as a brand name in 1985. Mitsubishi Electric sold their version of the technology as Diamond Vision. It is typically used in sports stadiums and concert venues to show close up shots of an event or even other sporting events occurring simultaneously, as well as outdoor public places (such as Times Square, for example). History and development The jumbotron was invented in Japan during the early 1980s, but there is a dispute between two rival Japanese companies, Mitsubishi Electric and Sony, over its invention. In 1980, Mitsubishi introduced the first large-scale video board, the Diamond Vision, which was a large screen using cathode-ray tube technology similar to traditional tube televisions. They demonstrated the technology at the 1980 Major League Baseball All-Star Game in Dodger Stadium, Los Angeles. Panasonic had the Astro Vision which was based on Fluorescent Discharge Tubes. These were the only three players in the large-screen industry. Ironically, it was Sony who introduced Daktronics to the pro and college sports world, as Sony would exclusively sell Daktronics scoreboards and controllers with their video board solutions. Eventually Daktronics replaced Sony in the space completely. In 1985, the term "JumboTron" was coined by Sony for its large-scale video board. The JumboTron was the brand name for the large-scale video boards originally manufactured by Sony, and is recognized as one of the largest non-projection video displays ever manufactured. Sony creative director Yasuo Kuroki, who previously helped create the Walkman, is credited with the development of the JumboTron. It was introduced at the Expo '85 held in May 1985 at Tsukuba, Ibaraki. It had a display resolution of 450,000 pixels, using a new proprietary Sony technology called the Trini-lite. It was a microprocessor-based light bulb developed by one of Kuroki's colleagues, chief Betamax engineer Yuji Watanabe. Trini-lite technology allowed screen clarity and computer control, laying the foundation for the first Sony Jumbotrons. In December 1986 the San Antonio Spurs unvailed the first center-mounted arena JumboTron scoreboard at the now-defunct HemisFair Arena. While the JumboTron and similar large-screen displays are physically large, they ranged from low to medium display resolutions. While the original Sony JumboTron in 1985 had a 450,000-pixel resolution, comparable to standard-definition televisions of that era, certain