Samsung Flat Screen TV 32 Inches

TV history: from mechanical box to ultra-thin panel 30.01.2018 at 14:00 Updated: 30.01.2018 в 12:27 Almost every family has a TV. Whether it is used for terrestrial TV, or for displaying images from YouTube or a game console - in any case, a large screen in the house is a handy thing. In this article, we will look at the main stages that these screens went through on the way of their development. Nowadays it is difficult to imagine a TV that does not use electronics. But it all started with the use of fairly simple mechanical devices. The first important discovery in the history of televisions was made when German student Paul Gottlieb Nipkov was studying in Neustadt. He missed his mother and really wanted to see her on Christmas Eve. He decided to realize his desire according to the principle of a telephone or telegraph, which already existed at that time. These reflections prompted him to the idea of ​​a new device - a scanning disk, which was later named after him. His invention was a rotating disc with holes arranged in a spiral. As it rotated, each hole scann Samsung Flat Screen TV 32 Inches ed its own line. The number of lines, respectively, depended on the number of holes applied to the disc. Formally, each line was part of a circle, but with a large ratio of the radius of the disk to the size of the screen, they could well be approximated to straight lines. By placing a photosensitive panel behind the disc, it was possible to obtain a picture with a line resolution equivalent to the number of holes on the disc. In 1884 Paul Nipkov was granted a patent for his invention. This moment can rightfully be considered the beginning of the era of television. However, before using it not only for scanning, but also for transmitting an image, it was necessary to wait a few more decades, until the invention of the radio tube. In the 1920s, Scottish inventor John Loughie Byrd experimented with two Nipkow disks in the hope of learning how to not only scan, but also transmit an image. The idea behind his invention was to synchronize the rotation of two discs - one scanning, the other reproducing. A photocell was to be located behind the first disk, and a radio tube behind the second. They, in turn, also had to be synchronized. When the photocell registered more intense light, the lamp should have glowed brighter, when less intense - dimmer. After a series of vain attempts, John Byrd still managed to synchronize the Nipkow disks. The first image that he was able to reproduce with his device was a Maltese cross, whose outline could be clearly recognized in the reproduced picture. One of the first images transmitted by Byrd, which has survived to this day. In 1923, John Byrd received a patent for his invention, but at the time no one saw the potential in it. Not finding sponsors for further development, John had to slowly but surely develop his ideas on his own. In 1928, the first commercial device, The Televisor, was introduced to the world. It was a large box with a huge disk and a screen, which rather resembled the ear tube of telephones of that time, to which one had to apply not with the ear, but with the eye. Over time, the resolution of the picture grew: the original 30 lines turned into 38, and then into 90 and even 120. But this required more and more large discs, which had to rotate faster and faster. So mechanical TVs hit their limit pretty quickly. The world needed a new breakthrough. https://jiji.ug/kampala/tv-dvd-equipment/samsung-flat-screen-tv-32-inches-gl5xVLUXARKqnDQOV2u1wF7B.html