The Samsung Company has been a leader in the improvement of HDTV flat panel sets; it is one of the top brands on the market. Their latest sets use LED back-lighting technology. This replaces the cold-cathode fluorescent lights that were used by the first generation of LCD TV sets. The development of this LED backlighting technique has allowed them to manufacture sets that are thinner, and lighter than earlier sets, yet produce significantly better picture quality. The Samsung UN46D6420U LED 3D HDTV is an excellent example of this technical superiority.
These filters polarize two sets of alternating horizontal lines on the screen in one of two different patterns. Each eye then sees only the set of lines displayed on the screen (and therefore sees an image that has only half the full-screen resolution!) that matches the polarization of the lens on the right or left side in the glasses, insuring that each eye sees only one image.
With an Active system, the lens in front of each eye “actively” becomes opaque, then transparent. This is done by switching the LCDs that are used in the lenses. Each eye is blocked in sequence, as the stereo frame for the left or right eye is displayed on the screen. The coordination is accomplished by synching the glasses by using a signal transmitted by the TV set. These alternating frames are presented at the rate of 120 HZ, so that each eye sees 60 images per second. Because each eye perceives a full resolution image, there is no downgrading of resolution in the 3D image.
As mentioned earlier, Samsung’s 3D LED TVs employ an Active 3D system. There are two types of glassed that can be used with these sets. The first type needs batteries, the other type uses rechargeable batteries, which can be charged using any USB connection. The rechargeable glasses are very lightweight, weighing only one ounce, and will work for tens of hours with just one charge.
Samsung’s Active 3D system also enables you to “up-convert” standard 2D content and programming to what is called “near 3D” appearance. This means that the 2D programming, whether network broadcasts, DVDs, or your own home movies can be displayed with the appearance of depth that isn’t otherwise present in the original material.
The size of the TV screen is an important consideration when evaluating a 3D television purchase. The best seating distance, to avoid eye strain, is three times the vertical size of the TV screen. Based on that, for a 46″ screen (which has a vertical dimension of about 23″), the minimum suggested viewing distance should be approximately 67″, or approximately 5.5 feet. For a 55″ screen, the minimum suggested distance would be just slightly under seven feet. So, for this Samsung 46 LED HDTV model, the optimum viewing distance is about six feet from the screen.
Active 3D is just the start of the long list of great features you will find in the Samsung UN46D6420U HDTV. This Samsung set is loaded with what Samsung calls their “Smart Apps” – applications that form the foundation of their “Smart TV” platform. This array of “Apps” allow you to use the TV to interface with the Internet, and to download Web content from providers like Hulu Plus, Netflix, Pandora, and many others.
Although certain “Apps” must be purchased for a dollar or two (much like iPhone apps), there is a generous list of Apps that are free, such as children’s material and games. Apps categories include areas like Sports, Lifestyle, Videos, Games, Education, and Information.
Another neat thing about this set is its use of “Allshare DLNA Technology”. DLNA is an abbreviation for the “Digital Living Network Alliance”. It represents an “interoperability protocol” that makes it possible for a variety of electronic appliances to link up to make possible file sharing and data transmission. Samsung’s “Allshare” makes it easy to synch up most of your DLNA-enabled components with your Samsung TV set, which means that you can access all the media files on your computer, iPhone, and other devices on your HDTV set as well. Add the optional LinkStick, and you can have wireless access as well.
Find all the details, and discover lots more about the other great features of the Samsung UN46D6420U, including The Eco Sensor, the Wide Color Enhancer Plus, and lots more. You will also find the full specs for the set. You can discover lots more about other great LED TV sets here.
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