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A University of
Missouri graduate in the early 1960s, Fergason went on to Westinghouse Research
Laboratories. The breakthrough for LCD TV came in 1969, though, while Fergason
was Kent State University Liquid Crystal Institute associate director. Fergason
discovered the twisted nematic field effect. The first LCD TV display was
conceived by inventor and electrical engineer George Heilmeier in May
1968.Liquid crystals were first developed in 1888. LCD televisions surpassed
sales of CRT-based televisions worldwide for the first time and their sales
figures relative to other technologies are accelerating. Samsung LCD TV are quickly
displacing the only major competitors in the large-screen market, the plasma
display panel and rear-projection television.LCD TV technology is based on the
concept of liquid crystal display, now used as the world's most popular
flat-screen technology. An Samsung LCD TV contains a pair of transparent
surfaces. Grooves are cut into these and filled with liquid crystal. By use of
transistors, electric current is applied to the liquid, thus twisting the
crystal in what would become known as the "twisting nematic field
effect." The process of twisting and untwisting the crystal blocks light
to the given area of the LCD TV display.
Samsung LCD TV work by using a backlight to shine light onto
millions of electrically controlled pixels. These pixels are directed to block
or pass certain wavelengths of light and work in unison to produce the picture
seen on the screen. Samsung LCD TV
displays are available to display arbitrary images (as in a general-purpose
computer display) or fixed images which can be displayed or hidden, such as
preset words, digits, 7-segment displays, etc., as in a digital clock. They use
the same basic technology, except that arbitrary images are made up of a large
number of small pixels, while other displays have larger elements.
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