Showing posts with label Benefits. Show all posts
Showing posts with label Benefits. Show all posts

Monday, April 19, 2010

The Benefits of a Flat LCD TV


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There are other benefits that you can get form a flat LCD TV, besides the low profile and extra space. For instance, it offers the highest resolution of any other kind of television. This amazing television also seems to have no glare at all because it has a very low glare. Unlike a normal curved TV screen, the flat profile of a flat LCD TV does not catch light from any direction and send it to the viewers in the form of glare.

This wonderful television model is similar to a mirror and is only vulnerable to light disturbances from a particular direction. This modern type of television will not reflect light back at you unless there is a powerful light source from that specific spot.

A flat LCD TV does not have a cathode ray tube that is present in a normal TV. A cathode ray tube, or CRT, is basically a gun that shoots out electrons at high speed at the surface of a normal TV. These electrons then strike a surface that fluoresces or glows and produces a pixel on the screen.

A CRT television needs to have a curved screen and enough depth to position an electron gun behind it and shoot the image out of the television. In contrast, a flat LCD TV uses a light source with polarizing filters and a thin layer of liquid crystals in between. This allows it to be very thin and efficient in terms of space.

A flat LCD television will initially cost more than a normal TV, but it also uses up far less power. This means that you can save money in the long run because it cuts down on your electricity bill. The clarity of the image is another major advantage that a flat LCD TV offers. You will simply never see a clearer image on other types of television because there will be no distortion from the curved screen that is present in normal TVs.

A flat LCD TV also has better resolution and clearer defined boundaries than most normal TVs. You will see the difference when you watch normal TV programs. However, it is most noticeable when you look at DVD movies because they are at a higher resolution than normal TV programs. The LCD television is the best way to go for die hard movie fans.

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Thursday, April 15, 2010

Benefits of 3D Glasses


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With 3D movies gaining in popularity and a number of 3D televisions coming onto the market in the near future it can be a bit confusing as to how each system works, there is currently no real universal 3D system with a number of methods fighting for overall control of the market, out of the 4 current methods to watch 3D there are 3 different 3D glasses that are used in conjunction with each type. These four types include polarizing, active shutter and lenticular technology, along with the age old anaglyph method we all know and love.

To understand how 3D glasses work you have to have a basic understanding of how depth perception is gauged by the human eye, quite simply each eye is spaced a distance apart which means the image each sees is slightly different from the other, the brain then does its thing and turns these two images into a single image with the addition of depth. This process is used to create 3D images, when watching a 3D movie or looking at a 3D picture you are in fact looking at two slightly different images at once, the 3D glasses complete the process by blocking out one image from each eye so your two eyes are looking at two slightly different images each just like in real life, it really is quite simple but truly amazing!

The 3D glasses for each method are different, with anaglyph 3D you wear glasses that have red/blue lenses, what you are watching consists of two images per frame which is processed in each color so one image is filtered out by each eye. This is the old method that was used for the massive 3D movie boom of the 80's. The new more popular method used in cinemas is with the aid of polarization, with this method two images are shown each polarized differently, the 3D glasses you wear with this method are clear and each lens is polarized to allow only one of the two images into each eye, for example the right lens may be polarized to only allow horizontal light waves through while the left lens will only allow vertical.

There are two newer methods currently coming onto the market, used mainly for home use on new 3D televisions and monitors, these use active shutter and lenticular technology. With active shutter 3D you need special battery powered LCD glasses that block out alternate images displayed at high speed on a screen capable of a 120 Hz refresh rate. The other new method is lenticular technology which does not require 3D glasses at all because the TV itself creates the 3D image by reflecting light at slightly different angles towards the viewer with its unique screen.

So now you know the features of the three different types of 3D glasses you can just sit back and enjoy the show.

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