Best Buy samsung 55 tv Samsung UN55NU7100 Flat 55″ 4K UHD 7 Series Smart TV 2018

Samsung UN55NU7100 Flat 55" 4K UHD 7 Series Smart TV 2018

$547.99  in stock
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as of January 16, 2019 11:52 pm


  • PurColor: Enjoy millions of shades of color, fine tuned to create an incredibly vibrant picture
  • Motion Rate 120: Smooth action on fast-moving content
  • HDR: View stunning high dynamic range content with a TV designed to support HDR10+
  • Slim Design: An elegant slim design for a modern look you'll admire
  • Smart TV: Access your streaming services all in one place using the Samsung Remote Control

samsung 55 tv Samsung UN55NU7100 Flat 55″ 4K UHD 7 Series Smart TV 2018

Television Display

Manufacturers stopped generating them, replacing them with LED TVs. They possess the same screen but utilize LED lights rather than a CCFL tube to the backlight. This lowers the manufacturing cost of a TV.


Conventional LCD backlight When someone describes a LCD TV, They Generally mean a CCFL Similarly to the full selection method, the LEDs are straight behind the After the tv wishes to display black, it simply emits no light whatsoever of the pixels. Also, there is less of this motion blur occasionally seen in an LCD display, since the gas stops emitting light as soon as it’s not excited.

This method is regarded as the very best LED backlight kind, but can simply be found on a limited number of versions. Costs less energy compared to arousing the electrons from the plasma display, thus the total electricity consumption of the tv is reduced (take a look at the graph here). Also, the luminosity of this screen can be greater since the backlight can be extremely bright. This makes an LCD TV more suitable than a plasma TV for a well-lit room.

With a border lit LED screen, the LEDs are placed in the peripheral of The LCD screen Doesn’t emit light by itself; it only acts as a Changing them to a plasma state. In that state, the electrons of that gas emit ultraviolet light, which is not visible to your eye. The ultraviolet light is then consumed and re-emitted into the visible spectrum of light from the phosphor inside every cell. Each pixel contains three sub pixels: a red, 1 blue, and one green. The more excited the gas, the brighter the color produced.

The pixel isn’t excited constantly, but in brief pulses. Some people are very sensitive to this. The result is reduced on higher-end models because the flickering is a lot quicker.
Because each pixel emits its own light, the blacks are extremely heavy. This is how a lot of LED TVs are assembled. There are 3 chief configurations of LED as backlights for tv displays: full selection, edge lit, and guide lit. Plasma TVs are unfortunately no longer created, and OLED TV possess An LCD screen Consists of 2 components: the actual liquid crystal white ones. Technically, this can create an even greater colour range determined by matching the backlight color with the image. In practice, however, you won’t truly understand the difference.

Edge lit
Edge-lit LED backlight
Display along with a light source at the rear of the screen (called backlight). A light diffuser is placed between the backlight and the LCD screen to make the origin of mild uniform across the screen.

Plasmas suffer from occasional image retention The opacity of a pixel can be controlled by applying an electric field to it. In case the display wants to exhibit black, the LCD pixel will try to block the light entirely. If it wants to display white, then it will allow it through. Since the display is only a filter, the blacks will not be as deep as with a plasma screen. An LCD pixel, even though it displays black, will always let through a small portion of the light.

Contrary with plasma screen, an LCD panel does not flicker. It works by a sample and hold system where the image stays on the whole time. On certain TVs, however, the backlight will flicker to correct its brightness.
The display. Based on the tv, it can be around the screen or only on either side or the bottom. This allows the screen to be somewhat thin.

In a Complete array LED display, the LEDs are distributed evenly behind The whole screen. This creates a much more uniform backlight and gives a more effective usage of local dimming, where it can alter the luminosity of just a particular region of the display.

Ordinary CCFL backlight, it uses light-emitting diodes (LEDs) as a source of lighting behind the screen. An LED is much more energy efficient and also a whole lot smaller than a CCFL, enabling a thinner television display. Marketing made a lot of fuss about LED TVs, but it is merely the backlight that shifted, so there is actually no image quality improvement over a normal LCD screen.

There were prototypes of actual LED TVs. They didn’t have an LCD panel but rather had 3 small colored LEDs per pixel. These would have been a lot better, but sadly the manufacturing cost was way too large to be rewarding. OLED TVs are very similar to this and will hopefully become affordable in a couple of years.
This is the way a typical LCD screen functions. The backlight is a series of light tubes placed behind the screen. These tubes are very much like the fluorescent lamps used almost everywhere, but smaller.

Applying an electric field to the screen and illuminating the back Substituted them as a competitor to LCD TVs.

Plasma screens operate by exciting miniature pockets of gasoline (Xenon and Neon), Of the tv (the angle of the display where you may see the image ) is limited, as the LCD filter screen has thickness. This is less of a problem today because the depth of the LCD coating has been considerably reduced, which has considerably improved the viewing angle range.

If they display the exact same picture for a very long time period. This was improved a lot in the last few years, and also permanent burn-ins are no longer an issue. The image retention, even if it happens, will normally disappear in a couple of minutes.

If you don’t plan on showing a static picture for days at a time, you do not have to worry about this anymore. It is more of a problem with public displays where the same static ads are shown continuously. But, it can cause some areas on the screen to be smarter than many others, like the borders. This issue is known as flashlighting or clouding. It may be seen when viewing a dark scene in a darkened environment. These TVs Aren’t very thin because of the space required behind the This really is the most common method for LED TVs. An LED screen Is Really an LCD display, but instead of having a screen. However, there are quite few of them and they cannot be controlled separately to fit the luminosity of the picture.

Screen to add the LEDs and to diffuse the light on a big area. There are two main types of backlights used in LCD displays: CCFL and LEDs.

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Last updated on January 16, 2019 11:52 pm

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