When you are ranking the Manufacturers of flat panel LED HDTV sets, Samsung is clearly the Industry leader. It has had the highest sales volume of all the manufacturers of flat screen TVs for quite a few years. For the first quarter of 2011, Samsung’s lat panel TV set sales were 30% more than its closest competitor. If you ever had the chance to see a Samsung HDTV in operation set you will not find that at all surprising.
[I:http://autorepairarticles.com/autorepairarticles/wp-content/uploads/2012/01/CarltonTDriver15.jpg] The images you will see on a Samsung HDTV are stunning in their sharpness and brilliance. Combine that with the high level of technical design and the broad range of features that Samsung includes in its sets, and you have a very strong argument for anyone thinking about purchasing of one of these sets….and that’s without even considering the Active 3D capabilities of these sets!
Samsung’s 3D sets employ an “Active” 3D approach. This employs glasses with LCD lenses which serve like shutters. These lenses alternately lighten and darken for one eye or the other as the picture frame for the particular eye is being shown on the screen.. The other way of approaching the 3D problem is called “Passive 3D”. There is a very big difference between the two methods, and it becomes apparent in the perceived quality of the images that are you see on the sets.
The ability to create an image on a screen that has the appearance of depth – what is commonly called 3D – relies on the stereoscopic visual effect that results from viewing a different image with each eye. To understand how this works, try this simple experiment. Hold up an object (or just your finger) at arm’s length, and observe it with just the right eye, and then with only your left eye. As you do this, take note of the apparent position of that object when compared to objects that are further away.
You will notice that when looking through your right eye, the object will appear to be to the left of certain objects in the background, but when looking through your left eye, the apparent position of the object will seem to have shifted to the right, relative to that same background object. This illusion is referred to as “parallax”, and it is the basic principle of the two systems used to create the 3D effect on a television or movie screen.
The key difference between the two systems, the Active system and the Passive system, is in the way the two stereoscopic images are presented to the appropriate eyes. A three-dimensional effect will only occur if each eye sees only the correct image. (Think back to your old View-Master). As you may have experienced, if you look at a 3D movie or TV image without the proper glasses, all you see is a double image. The 3D effect requires that your brain sees a distinctly different image from each eye, and that the images have the proper parallax.
The Passive system for creating 3D images uses glasses with polarizing filters that are set at 90 degrees relative to each other. The image on the screen is also passed through polarizing filters, with alternating scan lines being polarized in the two different directions. This means that for an HDTV picture, with 1080 horizontal lines per frame, that 540 lines are polarized in one direction to create the image seen by the right eye, and the other 540 alternating lines are polarized in the 90 degree direction, for the left eye. The result of this is that you see an image which has an effective resolution of 540 lines, just half of what is required for true HDTV, which is 1080 lines.
With the Active 3D system, the lenses in the glasses “actively” become alternately opaque, then transparent, through control of the LCDs that are used in the lenses. Each eye is blocked in sequence, as the image frame for the right or left eye is being shown. The coordination of the images with the glasses is achieved by synchronizing the 3D glasses with a signal that is transmitted by the TV set. The different frames are displayed at the rate of at least 120 HZ, that means that each eye will see at least 60 images per second. Since each eye sees the full-screen, 1080i HDTV image, there is no loss of resolution in the screen image.
The Samsung UN40D6400, like all Samsung 3D HDTV sets, uses the Active system. In addition to great 3D TV, this set has a wide array of other great features that will make it your complete media center. It’s screen uses LED edge lighting to provide the illumination for the picture (since LCD’s do not produce any light). This system replaces the fluorescent tubes (yes, really!) that were used in previous generations of LCD flat screen TV sets.
Samsung has a wide range something they call “Smart Apps” – small “applications” that run on their TVs. These Apps are small programs (similar to iPhone Apps) that actually run on the TV set. (It’s worth noting that these TVs have a large amount of processing power at their disposal.) Although some of these Apps must be purchased, the cost is pretty much pocket change, and there are quite a few free Apps. These Apps cover a very broad range of subject areas including Videos, Sports, Lifestyle, Education, Games, and Information. There are also some Apps that will allow you to browse the Internet, and to make use of services like Netflix, Pandora, Hulu Plus, and many others.
The Samsung UN40D6400 set also has a feature called “ConnectShare” Movie feature. This will allow you to view videos, listen to music, and browse pictures straight from a USB flash drive. You simply plug the drive into the set’s USB port, and you are ready to watch or listen to all of your entertainment media files.
In addition to all the great electronic features, Samsung has designed this set to improve your viewing experience by minimizing reflections from the room environment on the TV screen. The set features Samsung’s “Ultra Clear Panel” at the front of their screens. This special panel has a treated surface that will absorb light from around the room. This helps to eliminate those distracting reflections that would otherwise interfere with the TV picture.
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