Difference between revisions of "Milestone-Proposal talk:Outdoor large-scale color display system, 1980"
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Thank you again for the helpful comments.
Thank you again for the helpful comments.
Revision as of 01:12, 4 February 2016
The relevant point here is that Eidophor-based color video display technologies were used in indoor and outdoor stadiums in the 1970s, as well as at NASA's Johnson Space Center and Boeing Space Center. Therefore it is difficult to claim "first large-scale color display system."
A modified citation is suggested:
Mitsubishi Electric developed the world's first large-scale, emissive, color, video display system and installed it at Dodger Stadium, Los Angeles, USA. It achieved a bright, efficient, high-quality moving image through matrix-addressed cathode-ray tubes - later replaced with flat matrix CRTs and LEDs - as pixels. The system has been used since 1980 at increasing dimensions and resolution in sports facilities and public spaces around the world to inform and entertain millions of people. (73 words)
Some qualifiers to the Milestone proposal -- Administrator7 (talk) 10:41, 8 June 2015 (CDT)[edit | reply | new]
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).
Re: Some qualifiers to the Milestone proposal -- Administrator7 (talk) 17:36, 18 January 2016 (CST)[edit | reply | new]
- Reply for the 2nd comments on 18 January 2016
I appreciate the helpful comments.
Exactly the Eidophor-based display system was already used as large-scale video display; and I understand the "first large-scale color display system" should be modified in the citation. The suggested citation is helpful. I also think “emissive” is effective to differentiate the outdoor large-scale display from the Eidophor-based technology. If the next idea is acceptable, I will update the citation within 70 words later.
The idea to modify the citation within 70 words is as follows. Mitsubishi Electric developed the world's first large-scale, emissive, color, video display system and installed at Dodger Stadium, Los Angeles in 1980. It achieved a bright, efficient, high-quality moving image through matrix-addressed cathode-ray tubes - later replaced with flat matrix CRTs and LEDs - as pixels. The system has been used, increasing dimensions and resolution, in sports facilities and public spaces around the world to entertain millions of people. (68 words)
Re: Re: Some qualifiers to the Milestone proposal -- Zenichiro Hara (talk) 01:12, 29 January 2016 (CST)[edit | reply | new]
- Reply for the first comments on 8 June 2015
I appreciate the comments for the large-scale displays. They were helpful for the good understanding of technological background of this proposal. When I submit the proposal, I modified it a little thanks to the comments.
Regarding the systems developed after the first installation for Dodger Stadium, the proposal was modified just a little in section Impact of the system on technology in the range that can prepare the references as follows. “Major companies interested in the technology and market. They developed similar systems with their own lighting tubes such as incandescent lamp with RGB color coating film by Panasonic, colored discharge tube by Toshiba and multiple CRT which include 8 phosphor dots in a glass bulb by English Electric Valve. Sony developed high brightness multiple CRT which applied the technology of Vacuum Fluorescent Display and exhibited at Tsukuba world science exposition in 1985.”
Regarding the history of three technological fields (scoreboards, advertising, and large-screen video), the proposal was modified just a little in section Development of world's first large-scale color display system as follows. “The typical applications were electric score boards or advertising display; the video display was also utilized with single color gray scale image by Stewart Warner.” Of course, the video projection system like Eidophor is one of the large-scale displays and played an important role in the same technical fields. The proposal discriminated the technology from the projection system clarifying the emissive display system with lighting tube or lighting device. Moreover the feature in the proposal like high image quality at various illuminance levels (daytime and nighttime) will also discriminate the technology from the projection system.
Thank you again for the helpful comments.
Re: Some qualifiers to the Milestone proposal -- Zenichiro Hara (talk) 19:12, 3 February 2016 (CST)[edit | reply | new]
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