The new Flat TVs are based on LED technology. Here's how they work and how they go and especially because of the future may become the standard.
The LED system is not the only technology able to "turn on" screens and LCD TVs. There are other promising technologies such as OLED (Organic Light Emitting Diode) and SED.
The first uses special organic materials and promises lower fuel consumption, fast response times and better brightness, while the latter uses electron guns to illuminate the pixels made of phosphorescent particles.
In this case, a small transmitter, about the size of a nanometer, is placed behind each subpixel of the screen allowing the realization of ultra-thin panels.
The result of the LED technology offers many advantages: brilliant color and a richness of color that no other LCD TV is able to return.
This technology is complemented by an operating frequency of 100 Hz to provide smooth and without streaks sequences .. in short, all LCD screens have the credentials to rival those of plasma, current reference with regard to large-sized screens.
The screen with LED technology is not limited to be used only for TV but also for desktop or laptop computer monitors.
Almost all manufacturers of flat screens seem to want to adopt this technology profitable and promising.
The new MacBook Air uses LED technology for its 13.3-inch backlit screens with a resolution of 1280 x 800 pixels. LED technology reduces power consumption and completely replace the previous architecture for several years was used in the screens of personal computers.
How does an LED screen
When it comes to LED screens do not want a new image generation technology. A more appropriate term would be "based on the LCD screen LED backlighting" because the panel that produces the images is that of a conventional flat screen.
Inside the screen LED emitted light from 2160 small red LEDs, green and blue combine to form a white light. The light beam passes through a diffusion plate that ties it all together.
The most obvious advantage compared to conventional lamp is the best color quality: the neon of traditional LCD screens, it does not return, and a perfect white light must be corrected by using color filters that provide amazing results.
The white light illunina then the liquid crystal panel to form the final image.
The duration of the LCD screen based on LED technology is on the order of 100 thousand hours while that of a conventional screen is 50 thousand hours.
Thanks to LED technology can be built of thick-thin screens a couple of millimeters.