Television is one of the greatest inventions in the world. The first TV launch in 1924, invented by the British electronic engineer John Baird, to 1928, the United States took the lead RCA television aired the first set of the TV series "Felix The Cat", since then, the television began to change human life, information dissemination and ways of thinking. Since then, humans began to enter the television era. American RCA1939 launched the world's first black and white TV to color TV standard in 1953 set the nation and in 1954 launched RCA color TV. There are three main reasons why TV is good: you can get information, you can get enjoyment, and you can learn. People usually put October 2, 1925 Scotsman John Logie Baird in a single experiment London "sweep LCD TV scan " is seen as a puppet of the image mark the birth of television, he was called " father of television. " However, this view is controversial, because in that same year, Americans Sifu Luo Jin (Vladimir Zworykin) at Westinghouse (Westinghouse) to his boss demonstrated his television system. Although the same time they appear, but John Logie Baird (John Logie Baird) and sifu Luo Jin (Vladimir Zworykin) television systems have great differences. The history of John Logie Baird (John Logie Baird) mechanical television system called television, and Sifu Luo gold system is called Electronic TV. This difference is mainly due to different principles of transmission and reception. Development of television is complex. Almost the same time there are many people doing the same research.
TV invention is from the 19th century and the few pioneers began to study the transmission of the image design techniques. In 1904, the British and German Colon Will Bell invented the first fax a photograph of television technology, a photo every 10 minutes pass. In 1924, the United Kingdom and German scientists almost simultaneously using mechanical scanning successfully came the still image. But the distance and extent of mechanical cable television transmission is very limited, the image is quite rough. In 1923, Russian-born American scientist Wadsworth in gold apply to the photoelectric tubes, television transmitters and receivers television patents, he for the first time a comprehensive " electronic television " fat settlement system a pioneer of modern television technology.
Because the application of electronic technology on TV, so the TV started out of the laboratory, began to enter into public life , in 1925 , British scientists have successfully developed the TV. In 1928, New York, USA 31 radio stations were broadcasting the world's first trial, because CRT technology is not yet fully pass the entire test lasted only 30 minutes, only to watch TV more than 10 units , a move declared as public utilities advent of television Arts is an epoch-making event in the history of television development .1929 U.S. scientists Eaves color television broadcast images of 50 lines between New York and Washington, the invention of color television. In 1933 Wadsworth available in gold and the successful development of television camera tubes and cathode-ray tube with a camera. Therefore, it make television camera complete with fully electronic imaging process, thus, the basic shape of modern television systems. Today, television cameras and imaging principle and appliances TV reception is improved on the basis of his invention The principle is the TV signals from the point to the surface of the sampling sequence, the transmission and reproduction is accomplished by scanning. Also, TV is classified according to its different styles. First, according to color: color TV, black and white TV. Second, by size: 5 inches, 14 inches, 18 inches, 21 inches, 25 inches, 29 inches, 34 inches, rear projection, and so on. TV size is measured in inches in diagonal length was 1 inch = 25.4mm. Third, according to Screen: Spherical color TV, flat...
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