subject: Samsung Un40d6420ufxza Led 3d Hdtv Set, Thin, Bright, Fantastic [print this page] Samsung has been a force in the development of HDTV flat screen sets; it is one of the best brands available. Their newest sets feature Light Emitting Diode back-lighting technology, instead of the cold-cathode fluorescent tube systems that were used in the first LCD TV sets. The use of this LED technology has allowed them to produce sets that are thinner, and more lightweight than previous sets, but still produce substantially higher picture quality. The UN40D6420UFXZA Samsung 3D LED HDTV is a good example of this technological expertise.
Since an LCD (Liquid Crystal Display) can not produce any light, but rather functions as a shutter that varies the visibility of light as it passes through the display, an LCD display needs some kind of back-lighting to be visible under dim lighting conditions. The LCD part of the display just acts as a "shutter" that will either allow light to pass through the display panel, or blocks it.
The first LCD TV sets had back-lighting provided by a set of miniature fluorescent lamps, which provide white light. Each pixel, or picture element, making up the TV picture is a spot on the display that has 3 tiny filters, each of which will create one of the primary TV colors: red, green, and blue (RGB). Each color TV image frame is then produced by controlling the amount of transparency of the LCD "shutter" that determines the amount of light passing through each individual filter in each pixel that make up the image.
The UN40D6420UFXZA Samsung 3D LED HDTV set uses an "edge lighting" system to provide the back-light for the picture. Here, very bright white-light LEDs (Light Emitting Diodes) are placed along the edges of the screen . A diffuser plate is used to distribute this light across the face of the screen. The use of an LED lighting system means that the TV requires much less electricity to operate it. This set is extremely efficient: with an operating rate of 5 hours per day, and with an electricity cost of $0.11 per Kwh, it would cost you about $14 per year to watch this set. When the set is off, it uses just 0.07 Watts of electricity in standby mode. That totals 0.6 Kwh/yr, which would amount to less than $0.07 per year, assuming the same electric rates!
This UN40D6420UFXZA Samsung 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 interact with the internet, and download content from the Web from sources like Pandora, Hulu, Netflix, and many others.
Another feature of this set is its use of "Allshare DLNA Technology". DLNA stands for "Digital Living Network Alliance". It is an "interoperability protocol" that enables a variety of electronic devices to link together to enable file sharing and data communication. Samsung's "Allshare" makes it a cinch to link your DLNA-enabled devices with your Samsung TV set, which means that you can use all the various media files that are on your computer, iPhone, and other devices on your HDTV set as well. Add to that the optional LinkStick, and you will be able to have wireless access as well.
This UN40D6420UFXZA Samsung TV also has the ConnectShare Movie feature. This makes it possible to look at pictures, watch videos, or play music from any USB flash drive. All you need to do is to plug the drive into the USB port on the set, and you are able to access the files.
The quality of the picture you will see on the UN40D6420UFXZA Samsung is improved by the Ultra Clear Panel which makes up the front panel of the screen. This panel acts to absorb most of the light that strikes it This almost totally does away with annoying reflections that could otherwise appear on the front of the screen. This in turn provides a picture that has deeper blacks and improved contrast, giving you a cleaner, crisper image with wonderful shadow detail.
Getting this set will significantly your TV watching experience, as well as making it easy to interface with all your other media sources, including your computer, your other personal devices, and the Internet.
