Jumbotron
From Free net encyclopedia
The Jumbotron, manufactured by the Sony Corporation, is recognized as one of the largest vacuum fluorescent displays ever manufactured. It is not an LED (Light Emitting Diode) display - each display element is composed of 3 or 6 small CRTs (Cathode Ray Tubes), each of which is one color of a pixel. (Handbook of Display Technology, Joseph A. Castellano, 1992) It is typically used in sports stadiums and concert venues to show close up shots of the action or band.
Sony displayed one of the earliest versions at the 1985 World's Fair in Tsukuba. Sony creative director Yasuo Kuroki is credited with the development of the JumboTron.
While the JumboTron and similar large-screen displays are physically large, they are often low in display resolution. The JumboTron at Tampa Stadium in Tampa, Florida, measures 30 feet diagonally with a resolution of only 240x192 pixels. Screen size since then varied depending on the venue. The one introduced in 1985 was 40 metres wide by 25 metres tall. The largest Jumbotron in use was located at the Rogers Centre (formerly the SkyDome) in Toronto, Canada and measured 33 feet tall by 110 feet wide at a cost of USD 17 million. The Rogers Centre Jumbotron was replaced in 2005 by a Daktronics ProStar as a part of a stadium revitalization project.
Although the term "JumboTron" is a registered trademark owned by Sony, it is often used by the public to refer to any type of such device regardless of its manufacturer or brand name.
Similar devices include:
- Daktronics ProStar
- Mitsubishi DiamondVision
- Panasonic AstroVision
- SACO Technologies Inc. SmartVision
- WWE's Raw TitanTron and SmackDown! OvalTron (manufacturer unknown; several have existed)