Uses the common yellow, red and white connections. The most basic video connection, being phased out on newer equipment. Also requires a RCA (phono) lead for the analogue audio Not as good as Component Video but better than composite video, not available on all flat screen TVs. Normally you would have all five cables joined into one, or use a 3 core red, green blue for the video and a separate red and white RCA (phono) cable for audio For more info on these connections, see the reference articles on HDMI, Component video, S-video, and Composite video.īest quality digital picture and digital audio in one cableīest quality analogue picture, plus analogue audio – requires five cables. Below is the basic hierarchy for cables and connectors when connecting devices to your flat screen TV. So which cables, plugs and sockets should you use? It depends on what outputs your other devices have. I say simple, because you don’t need to use all of them – just the ones best suited to your equipment. All the sockets on the back and up the side of a flat screen TV can be imposing, but tackling them one by one reduces it to a simple task. LED TVs consume a lot lesser amount of energy giving much more brighter display compared to LCD and Plasma.Connecting your TV is not as hard as it looks. These anodes are positively charged electrodes and negatively charged cathodes. This current is specifically passed from one LED anode to another. They emit bright light when current is passed through them. Light Emitting Diodes are small electrical components of semiconductor. The baseline functioning of LED is that it illuminates the LCD panels by using LED technology. The back-light intensity and brightness is much more. LED TVs have slimmer and thinner body panel. Like said earlier, a LED TV is an enhanced and improved version of a LCD TV. This in turn paints the moving pictures on the screen.įor more information on plasma televisions, read How a Plasma TV Works. When the plasma TV is electronically turned on, the electricity causes the colored phosphors to produce light. This chemical is what makes the pixels red, green, or blue. Each pixel is coated with a chemical called phosphor. Between these two sheets of glass are millions of pixels filled with two kinds of gas, namely neon and xenon. How Does a Plasma TV WorkĪ plasma TV is made up of two sheets of glass. This transistor switches the pixel on and off as many times as needed every second.įor more information on LCD televisions, read How does an LCD TV work?. Without the rotating liquid crystals, no picture will be produced because the polarizing filters block out all the light passing through the pixels.Ī pixel has its own separate transistor. These crystals rotate to permit some of the rays of light to pass through the polarizing filters.ĭepending on which sub-pixels the light touches, the pixel lights up and produces a certain color. When the light at the back of the LCD TV is turned on, the liquid crystals in each pixel are also switched on. Each pixel is composed of a tiny liquid crystal placed between two glass polarizing filters. Each sub-pixel is colored red, green, or blue. In front of the light are millions of pixels that are further separated into sub-pixels. How Does an LCD TV WorkĪt the back of the LCD TV is a large bright light that is turned on when the TV is switched on. LED technology allow the manufacturers to develop thinner screens compared to LCD TVs and Plasma TVs. LED TVs are quite similar to LCD TVs but differ in a way that its back-light function is provided from around the edge of the screen using LED technology. In a plasma TV, the pixels are microscopic fluorescent lights electronically turned on and off. In an LCD TV, a colored picture is produced because the pixels use liquid crystals that rotate polarized light. The main difference between an LCD TV and a plasma TV is how their pixels are switched on and off. Each of these pixels is colored red, green, or blue, depending on the light that falls on them. Unlike CRT TVs, flat-screen TVs do not use an electron beam running back and forth behind the screen to produce a picture.Īn LCD TV and a plasma TV use the same technology of switching millions of tiny picture elements called pixels on and off to produce a moving picture. LCD TVs, Plasma TVs and LED TVs work differently from the traditional Cathode Ray Tube (CRT) TVs. There are three types of flat-screen televisions. These have thin body frames, unlike the box-typed CRTs. ![]() Flat TV screens are the modern day television sets.
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