LED TV Prices – Compare LED Televisions Prices & UK Deals @ LED TV Prices
Main menu:
Led Backlit Lcd Tv Information
Most of the main benefits of LED (Light Emitting Diode) TVs over ordinary LCD TV's come from their use LED's as backlights instead of CCFL (Cold Cathode Fluorescent Lamp). One of the benefits is that due to the small size of LED's the screens are remarkably thin, Samsungs 46" 6000 series model is only 29.9 mm thick, whilst Sony's Bravia ZX1 model is a super skinny 9.9mm thick.
With a life span of 50,000 hours or more LED backlighting is the most durable lighting system in the television industry at present and with benefits such as not suffering from a initial 'warm up' time, 178 degree viewing angle's and ultra high contrast ratio's, LED TV's are currently the highest spec LCD televisions available on the market today.
There are a couple of different methods of using LED's which are LED Edge Lighting as used in the Sony Bravia ZX1, which as the name suggests has rows of white LED's around the edge of the screen, this technology is commonly used in other devices such as mobile phones and small laptop screens.
The other method is RGB LED backlights as used in Philips LED LUX system in their 42" 42PFL9803H model. By using separate LED's (red, blue and green) instead of white-only bulbs, it can reproduce more colours with greater accuracy and effects a smoother transition between the subtlest of shades - so you see images just as you would in real life.
Technology and Features
Local Dimming
Using a method known as local dimming these LED's can be individually dimmed to precisely control the output of each pixel. So, even if a segment contains both bright and dark portions, the pixel values of the dark portions can be dimmed to deliver optimum contrast performance. Compared to CCFL backlights, LED's using local dimming create specific dark areas on screen and achieves truer blacks and a much higher dynamic contrast ratio as well as creating more depth in each image.
This is how LED TV's achieve a Dynamic contrast ratio greater than 1,000,000:1 for Sony's current ZX1 range and 2,000,000:1 for Philips PFL9803 model, Compared to 70000:1 for a top of the range CCFL LCD TV, It also makes it comparable to that of a top of the range plasma tv but without any off the drawbacks that can affect them.
Why not take a look at this explanatory video from Sony for more info.
Full HD 1080p
All LED TV's currently released are Full HD, 1920x1080p this is the highest resolution of HD sources for the best possible picture quality. This means they contain 1.5 times more scanning lines than conventional HD TVs. More scanning lines mean more pixels and a better picture. HDTV allows you to receive high definition terrestrial broadcasted content via the built-in tuner. So you will get exceptional picture and sound quality.
100 Hz Plus
Each manufacturer currently has their own version of software to insert extra images. This technology doubles the frame rate from 50 to 100 frames per second (100Hz LCD panel) without repeating the same image to make more frames and faster frames for a clearer picture. The TV intelligently calculates the 'middle' image between frame A and frame B and inserts it in between, making a fluid transition from one frame to the next and reducing animation blur.
HDMI
HDMI CEC is the industry standard protocol to share full high definition functionality between connected devices and the TV. HDMI makes an uncompressed digital RGB connection from the source to the screen for the ultimate picture quality. HDMI uses HDCP copy protection. With multiple HDMI inputs on the TV's you can connect multiple HD sources, for instance an HD set-top box, a Blu-ray player, and Game Console or Digital Camcorder.
True 24p mode
This mode allows films to be watched as intended by the director for the big screen, at 24 frames per second. Movies watched at home play back 'faster' than they do in the cinema it has to be adjusted to be compatible with the PAL format. The difference is that films are shot at a rate of 24 frames per second, whereas standard TV uses 25 frames per second.
Picture-in-Picture (PiP)
Displays small picture from the TV source whilst Enabling you to browse other applications at the same time.
Additional features
Most of the models also come with a host of other features that you would expect on a top of the range LCD TV. Some of these include networking ports to allow you to connect you LED TV to your PC or the internet, some including Samsungs 7000 series and Sony's Bravia ZX1 model include wireless technology, making them able to connect to Blu-ray or DVD players without the use of cables. They also come with Sleep timers, parental controls, surround sound outputs, Teletext, an various viewing modes.
See also Selecting the right TV for your needs
LED TVs | LED TV Prices | LED TV Information |Lcd | Samsung | Sony | Philips | Terms of use | Contact Us