A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a phosphorescent screen. The images may represent electrical waveforms on an oscilloscope, a frame of video on an analog television set (TV), digital raster graphics on a computer monitor, or other phenomena like radar targets. A CRT in a TV is commonly called a picture tube. CRTs have also been used as memory devices, in which case the screen is not intended to be visible to an observer. The term cathode ray was used to describe electron beams when they were first discovered, before it was understood that what was emitted from the cathode was a beam of electrons.
A computer monitor is an output device that displays information in pictorial or textual form. A discrete monitor comprises a visual display, support electronics, power supply, housing, electrical connectors, and external user controls.
A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liquid crystals do not emit light directly but instead use a backlight or reflector to produce images in color or monochrome.
A word processor is an electronic device for text, composing, editing, formatting, and printing.
Trinitron was Sony's brand name for its line of aperture-grille-based CRTs used in television sets and computer monitors. It was one of the first television systems to enter the market since the 1950s. Constant improvement in the basic technology and attention to overall quality allowed Sony to charge a premium for Trinitron devices into the 1990s.
A flat-panel display (FPD) is an electronic display used to display visual content such as text or images. It is present in consumer, medical, transportation, and industrial equipment.
Apple Inc. has sold a variety of LCD and CRT computer displays since introducing their first display in 1980. Apple paused production of their own standalone displays in 2016 and partnered with LG to design displays for Macs. In June 2019, the Pro Display XDR was introduced, however it was expensive and targeted for professionals. In March 2022, the Studio Display was launched as a consumer-targeted counterpart. These are currently the only Apple-branded displays available.
ViewSonic Corporation is an American privately held multinational electronics company with headquarters in Brea, California, United States.
A television set or television receiver is an electronic device for viewing and hearing television broadcasts, or as a computer monitor. It combines a tuner, display, and loudspeakers. Introduced in the late 1920s in mechanical form, television sets became a popular consumer product after World War II in electronic form, using cathode-ray tube (CRT) technology. The addition of color to broadcast television after 1953 further increased the popularity of television sets in the 1960s, and an outdoor antenna became a common feature of suburban homes. The ubiquitous television set became the display device for the first recorded media for consumer use in the 1970s, such as Betamax, VHS; these were later succeeded by DVD. It has been used as a display device since the first generation of home computers and dedicated video game consoles in the 1980s. By the early 2010s, flat-panel television incorporating liquid-crystal display (LCD) technology, especially LED-backlit LCD technology, largely replaced CRT and other display technologies. Modern flat-panel TVs are typically capable of high-definition display and can also play content from a USB device. In the late 2010s, most flat-panel TVs began offering 4K and 8K resolutions.
A backlight is a form of illumination used in liquid-crystal displays (LCDs) that provides illumination from the back or side of a display panel. LCDs do not produce light by themselves, so they need illumination to produce a visible image. Backlights are often used in smartphones, computer monitors, and LCD televisions. They are used in small displays to increase readability in low light conditions such as in wristwatches. Typical sources of light for backlights include light-emitting diodes (LEDs) and cold cathode fluorescent lamps (CCFLs).
Sharp 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 more than twenty years. The company sells display products to the consumer, business, professional, digital signage and medical markets.
An active shutter 3D system is a technique for displaying stereoscopic 3D images. It works by only presenting the image intended for the left eye while blocking the right eye's view, then presenting the right-eye image while blocking the left eye, and repeating this so rapidly that the interruptions do not interfere with the perceived fusion of the two images into a single 3D image.
Eizo Corporation is a Japanese visual technology company, founded in March 1968, which manufactures display products and other solutions for markets such as business, healthcare, graphics, air traffic control, and maritime. The company is headquartered in Hakusan, Ishikawa Prefecture.
A multiple-sync (multisync) monitor, also known as a multiscan or multimode monitor, is a raster-scan analog video monitor that can properly synchronise with multiple horizontal and vertical scan rates. In contrast, fixed frequency monitors can only synchronise with a specific set of scan rates. They are generally used for computer displays, but sometimes for television, and the terminology is mostly applied to CRT displays although the concept applies to other technologies.
Compugraphic Corporation, commonly called cg, was an American producer of typesetting systems and phototypesetting equipment, based in Wilmington, Massachusetts, just a few miles from where it was founded. This company is distinct from Compugraphics, a British company founded 1967 in Aldershot, UK that specializes in the production of photomasks used in the production of integrated circuits. In 1981, it was acquired by European competitor Agfa-Gevaert, and its products and processes merged into those of Agfa. By 1988, the merger was complete and the Compugraphic brand was removed from the market.
The World Reuse, Repair and Recycling Association (WR3A) is a business consortium dedicated to the reform of the trade of e-waste. The WR3A is inspired by fair trade organizations.
The IBM 5520Administrative System was a text, electronic document‐distribution and data processing system, announced by IBM General Systems Division (GSD) in 1979.
TPV Technology Limited is a Fortune China 500 multinational electronics manufacturing company headquartered in Kwun Tong, Hong Kong, and incorporated in Bermuda. It is the world’s largest manufacturer of computer monitors with a 33% market share. TPV designs and produces a full range of CRT and TFT LCD monitors as well as LCD TVs for distribution globally. It owns brands such as AOC, Envision, and Philips for some products. It is also an original design manufacturer for other companies.
Philips Telecommunicatie en Informatie Systemen was a subsidiary of Philips that designed and manufactured personal computers. Philips Computers was active from 1963 through 1992. Before that, Philips produced three computers between 1953 and 1956, all for internal use, PETER, STEVIN, and PASCAL.
Korea Data Systems Co., Ltd., was an international electronics manufacturer based in Seoul, South Korea that manufactured primarily cathode-ray tube (CRT) and liquid-crystal display (LCD) computer monitors. KDS also produced word processors, laptops, and other computer hardware. The company was founded in 1983 and had over 1,200 employees worldwide at its peak. In 1999, it formed an American joint venture with TriGem of Korea and Sotec of Japan, named eMachines, which at its peak in 1999 was the fourth-largest manufacturer of computer systems in the United States.
