Milestone-Proposal talk:Outdoor large-scale color display system, 1980
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Some qualifiers to the Milestone proposal -- Administrator7 (talk) 10:41, 8 June 2015 (CDT)
This definitely a milestone. Mitsubishi received a technical Emmy Award for this in 2012. It's important to recognize what the milestone was.
The breakthrough was in high-luminance video-capable color emissive technology. This first appeared in the color video scoreboard at Dodger Stadium in 1980, and the Metro Los Angeles section should arrange for a copy of the Milestone plaque to be mounted there. Mitsubishi began working on the technology in 1978 and applied for patents on May 29, 1979. The technology was cathode-ray tubes, initially one per pixel color. The 8000-nit luminance of the green tube is impressive even today (red was 4200, blue was 1700). The Dodger Stadium installation was the world's first, and Mitsubishi had the field to itself for about two years. Then, beginning in 1982, it was followed by Panasonic, English Electric Valve, Toshiba, Sony, and Omega.
Remember that there were - earlier electric scoreboards. - earlier stadium video displays. - earlier large outdoor color display. - earlier sports venue color video displays.
Here's a set of three technology timelines: 1. scoreboards 2. advertising displays, and 3. large-screen video.
1. Scoreboards: 1846 - Lord's Cricket Ground "telegraphic scoreboard" 1884 - remote visual scoreboard at Masonic Theater, Nashville 1891 - Samuel Mott patents "Electrical Base Ball Bulletin" 1908 - Hollis Baird demonstrates light-bulb-based electric scoreboard in Boston c. 1912 - Nokes Electrascore's 1500 light bulbs can show path a ball takes 1959 - 11,200-light-bulb electric-message scoreboard at Yankee Stadium 1965 - Fair-Play video scoreboard at the Astrodome 1972 - Stewart-Warner installs first video instant-replay screen at Arrowhead Stadium in Kansas City, followed by American Sign & Indicator, Conrac, and SSIH Equipment; all had gray scale but no color
2. Advertising displays: 1882 - "Edison" electric light bulb sign at the London Exposition 1891 - Flashing "Manhattan Beach" sign in Times Square 1898 - Heinz green pickle adds color 1905 - Heatherbloom Petticoats sign in Times Square adds animation 1910 - Rice Electric Display "Leaders of the World" Chariot Race atop the Normadie Hotel in New York has both color and animation (42-fps) 1911 - Motograph "moving" text display over Detroit's Columbia Theatre 1913 - Luminograph film-to-light-bulb display in Times Square 1932 - Epok display in Berlin allows live dancers to perform in front of photocells 1937 - Jean Carlu animated display in Paris in color 1972 - Fok-Gyem Finomechanikai és Elektronikus Müszergyártó KTSZ of Hungary installs color animated light-bulb displays in Kuwait, Mexico, and the Soviet Union, followed by Spectacolor displays in London and Times Square.
3. Large-Screen Video: 1877 - New York Sun newspaper carries a story about how the "Electroscope"could depict distant plays and operas in theaters 1882 - Albert Robida mentions 25-meter crystal "telephonoscope" screens in The Twentieth Century; William Lucas suggests the technology necessary for video projection 1927 - Bell Labs demonstrates 24- x 30-inch video screen 1930 - GE 6- x 7-foot projection-video screen in Schenectady, John Logie Baird 2100-light-bulb theatrical video array in London 1935 - August Karolus 10,000-element 2- x 2-meter direct-view video display 1936 - Karolus display, video projection, and intermediate-film projection used for video at the Berlin Olympic Games; many other video projection systems (including the Schlieren-optics Eidophor) developed before the end of the 1930s 1968 - Sony 78,000-picture-element 100-inch color TV display in Tokyo 1972 - four-projector Eidophor-based Telescreen installed at Capitol Centre in Landover, MD, followed by the Louisiana Superdome, Houston Summit, Cleveland Coliseum, and Seattle Kingdome.
After 1972 in the three fields, the next significant event was Mitsubishi's Aurora Vision (name in Japan) / Diamond Vision, which was installed at Dodger Stadium. The breakthrough was the high-luminance, video-capable tubes. This really did create the industry now dominated by LED screens (Shuji Nakamura's breakthrough in 1993).