Samsung Un40D6420Ufxza Led 3D Hdtv Set, A Top Performer

Samsung has been a leader in the improvement of flat panel Hdtv sets; it is one of the top brands available. Their newest sets highlight Led back-lighting technology, replacing the cold-cathode fluorescent tube systems that were used by the first generation of Lcd Tv sets. The use of this Led technology has enabled them to produce sets that are thinner, and lighter than earlier sets, yet produce substantially great photograph quality. The Samsung Un40D6420Ufxza Led 3D Hdtv is a good example of this technical excellence.

Because an Lcd (Liquid Crystal Display) does not produce any light, but rather acts as a shutter that controls the duct of light straight through the display, all Lcd displays require a back-light in order to be seen in dim lighting conditions. The Lcd part of the display plainly acts as a "shutter" that either allows light to pass straight through the display panel, or blocks it. It is like a minuscule venetian blind: when the crystals in a display cell are aligned in a perpendicular direction relative to the screen, light can pass through. When the crystals are aligned parallel to the display, the duct of light is blocked.

Light Source Microscope

Thus, while an Lcd display can be seen in inviting lighting conditions (a digital watch or clock face, for example), to be seen in dim lighting conditions - or to produce a beneficial Tv photograph - there must be a light source behind the Lcd display screen that provides the essential illumination, a back-lighting system. The first generation of Lcd Tv sets were back-lighted by a series of cold-cathode fluorescent tubes, which produce a white light. Each "pixel" or "picture element" that makes up a Tv photograph is spot on the display with three minuscule filters that produce the original Tv colors: red, green, and blue (Rgb).

The color Tv photograph is then created by adjusting the transparency of the Lcd element that controls the light passing straight through each of the filters in each of the pixels that make up the entire picture. For a typical Hdtv picture, there are 1080 lines of pixels, each with 1920 pixels per line - a total of over 2 million pixels in the picture. Each pixel has three filters, and must be controlled individually to generate a single frame of a Tv picture, which refreshes at a rate of either 120 Hz, or 240 Hz, depending on the model. The notation Hz refers to "Hertz", which is a quantum of the amount of "cycles per second" - 1 Hz is equal to 1 cycle per second.

The Samsung Un40D6420Ufxza Led 3D Hdtv set uses an "edge lighting" ideas to provide the back-light for its picture. In this system, very inviting white-light Leds (Light Emitting Diodes) are located colse to the edge of the screen frame. A diffuser plate then distributes this light straight through the entire face of the display. The use of an Led lighting ideas means that the Tv requires much less energy to operate. This set is very efficient: based on a usage rate of five hours per day, and an electricity rate of .11 per Kwh, it would cost about /year to control this set. When the set is turned off, it consumes just 0.07 Watts of power. That amounts to 0.6 Kwh/yr, which would cost less than .07 based on the same electric rates - no "electricity vampire" here!

This Samsung Un40D6420Ufxza set is loaded with what Samsung calls "Smart Apps" - applications that form the basis of their "Smart Tv" platform. These "Apps" allow you to use the Tv to interface with the internet, and download Web article from providers like Netflix, Hulu Plus, Pandora, and many others.

Another highlight of this set is its use of "Allshare Dlna Technology". Dlna stands for "Digital Living Network Alliance". It represents an "interoperability protocol" that makes it potential for discrete electronic devices to link together to enable file sharing and data transmission. Samsung's "Allshare" makes it easy to synch up most of your Dlna-enabled devices with your Samsung Tv set, which means that you can use all the media files on your computer, iPhone, and other devices on your Hdtv set as well. Add the elective LinkStick, and you can have wireless access as well.

The Samsung Un40D6420Ufxza set also includes the ConnectShare Movie feature. This makes it potential to play music, watch videos, or look at pictures from any Usb Flash Drive. All you need is to is to plug the drive into the Usb port on the set, and you are ready to go.

The clarity of the photograph you will see on the Samsung Un40D6420Ufxza is enhanced by the Ultra Clear Panel which forms the front of the screen. This panel absorbs ambient light from the surroundings, which in turn approximately totally eliminates the annoying reflections that would otherwise appear on the screen. This in turn provides a photograph with deeper blacks and enhanced contrast, providing a cleaner, crisper image with great shadow detail.

Owning this set will significantly enhance your Tv watching experience, as well as manufacture it easy to interface with all your other media needs, along with your computer, your other personal devices, and the Internet. Check out all the details about the Samsung Un40D6420Ufxza 3D Led Hdtv by following the link in the resource Box, and see how well this set will work for you.

Samsung Un40D6420Ufxza Led 3D Hdtv Set, A Top Performer

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