Light-Emitting Diode (LED) Monitors
Light-emitting diode (LED) computer monitors do not use cold-cathode technology and fluorescent technology. Instead, light diodes illuminate the screen in one of two different ways, or a combination of both. White LED lights are clustered around the rim of the screen and diffuse evenly, called edge lighting. LED lights are also spaced evenly behind the screen, and they are either not controlled or are controlled with a "local dimming" option. If you are looking for an LED monitor, look for this local dimming on/off option. Note that LED is different from OLED, which is a quality and mechanism unique to LG TV screens.
LED Advantages
The advantage of LED backlighting is an even better energy savings, the best on the market, in fact. LED also offers better color quality, clarity, and faster refresh rates. The local-dimming option found in some models allows fine tuning of color, especially in the black-and-white ranges. When the black-and-white range is clearer, it provides a better contrast to the true colors, and therefore, a more dynamic and realistic image. LED monitors offer even thinner construction than LCD monitors because of the LED lights around the edge of the panel.
What to Look For In LED
Previous incarnations of LED monitors had some issues with poor viewing angles, so many people could not sit around and view the images easily. Newer models are incorporating anti-glare technologies to improve viewing angles, but you should be aware that LED monitors may still have deficits in viewing angles compared to LCD monitors. In addition, as this technology is new, durability over time is yet unknown.
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