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Encyclopedia > Trinitron
Picture of a Dell-branded Sony Trinitron, still bearing the Trinitron logo.

Trinitron is Sony's brand name for its line of aperture grille cathode ray tube televisions and computer monitors. Sony invented the design in the 1960s and held the patent until 1996[citation needed]. "Trinitron" is sometimes used as a generic term for CRT monitors equipped with an aperture grille tube. Because of the expiration of Sony's Trinitron patent, manufacturers like Mitsubishi (whose monitor production is now part of NEC Display Solutions) are now free to use the Trinitron design for their own product line without license from Sony. However, they cannot use the Trinitron name; for example, Mitsubishi's are called Diamondtron. With the emergence of gas plasma, liquid crystal display and other newer technologies for monitors and televisions, Trinitron and similar brands have been in decline. Image File history File linksMetadata Download high resolution version (2288x1712, 1407 KB)Photo of a Dell-branded Sony Trinitron computer monitor. ... Image File history File linksMetadata Download high resolution version (2288x1712, 1407 KB)Photo of a Dell-branded Sony Trinitron computer monitor. ... Sony Corporation ) is a Japanese multinational corporation and one of the worlds largest media conglomerates with revenue of $68. ... This article is about brands in marketing. ... Aperture grille in close-up An aperture grille (tension mask) is one of two major technologies used to manufacture cathode ray tube (CRT) televisions and computer displays; the other is shadow mask. ... Cathode ray tube employing electromagnetic focus and deflection Cutaway rendering of a color CRT Electron guns Electron beams Focusing coils Deflection coils Anode connection Mask for separating beams for red, green, and blue part of displayed image Phosphor layer with red, green, and blue zones Close-up of the phosphor... A computer display monitor, usually called simply a monitor when the meaning is clear from the context, is a piece of electrical equipment which displays viewable images generated by a computer without producing a permanent record. ... A patent is a set of exclusive rights granted by a state to a patentee (the inventor or assignee) for a fixed period of time in exchange for the regulated, public disclosure of certain details of a device, method, process or composition of matter (substance) (known as an invention) which... Mitsubishi Electric Corporation ) (TYO: 6503 ) is a Japanese company based in the Tokyo Building in Tokyo, manufactures electric and architectural equipment, as well as a major worldwide producer of photovoltaic panels. ... NEC Display Solutions is a manufacturer of computer monitors and large screen public information displays and has sold and marketed products under the NEC brand globally for over 20 years. ... Planar Systems plasma display Composition of plasma display panel A plasma display panel (PDP) is a type of flat panel display now commonly used for large TV displays (typically above 32). Many tiny cells located between two panels of glass hold an inert mixture of noble gases (neon and xenon). ... Reflective twisted nematic liquid crystal display. ...


Trinitron tubes are considered by many to be the best in terms of image quality and are generally regarded to look better than LCD's.[citation needed] Trinitron TVs too used to be regarded as the best available in terms of picture quality, and Sony charged a premium for them. Because of the nature of the design, they had bright colors and high contrast with good across-the-screen electron focus compared to other television designs.


At the time of their introduction in the late 1950s, color CRTs included complicated dynamic convergence systems which were responsible for converging the three electron beams on one triad of phosphors. Part of the revolutionary nature of the Trinitron's design was the virtual elimination of dynamic convergence circuits, replacing them with bonded permanent magnets on the bell of the tube. Another feature was a three cathode single electron gun arrangement, in contrast to the then-dominant (and still common) three gun arrangement. Single gun systems tend to be easier to manufacture reliably, simplify beam focus and control, and are less prone to inter-electrode short circuits.


Over time, Sony Trinitron computer monitors have also been rebranded and distributed by Apple Computer, Dell, Digital Equipment Corporation, Gateway, IBM, Silicon Graphics, and Sun Microsystems, among others. The monitors have an identical chassis to the Sony-branded counterparts, and most bear the "Trinitron" logo on the top-left corner of the bezel. Apple Inc. ... Dell Inc. ... The DEC logo Digital Equipment Corporation was a pioneering American company in the computer industry. ... Gateway, Inc. ... International Business Machines Corporation (known as IBM or Big Blue; NYSE: IBM) is a multinational computer technology and consulting corporation headquartered in Armonk, New York, USA. The company is one of the few information technology companies with a continuous history dating back to the 19th century. ... Silicon Graphics, Inc. ... Sun Microsystems, Inc. ...


In 2007, Sony announced that it will no longer be marketing or selling Trinitrons in the USA or Canada. Sony still plans to sell the Trinitron in China, India, and regions of South America.


Partial list of other aperture grille brands

NEC/Mitsubishi is a manufacturer of computer monitors. ... ViewSonic is a manufacturer and provider of visual technology, specifically CRT monitors, LCD displays, projectors, plasma displays, HDTV technology, and mobile products, including tablet PCs and wireless monitors. ... MAG Innovision is a Taiwan-headquartered manufacturer and provider of visual technology, specifically CRT monitors, liquid crystal displays, projectors, plasma displays, and HDTV technology. ...

See also

Colortrak was a trademark used on several RCA color TVs throughout the 1970s to the 1990s. ... RCAs logo as seen today on many products. ...

External links

  • Sony Trinitron Explained

  Results from FactBites:
 
Trinitron - Wikipedia, the free encyclopedia (230 words)
Trinitron is Sony's brand name for its line of aperture grille cathode ray tube televisions and computer monitors.
"Trinitron" is sometimes used as a generic term for CRT monitors equipped with an aperture grille tube.
Trinitron TV's used to be regarded as the best available in terms of picture quality, and Sony charged a premium for them.
  More results at FactBites »

 
 

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