Regular readers of tech2 will know that “LED monitor” means that the backlight is LED, and the monitor display panel is still LCD. Now that that confusion is out of the way we should proceed. Slowly but surely, after LED backlights have taken over notebooks' screen lighting responsibilities, we are seeing them appear more frequently in every LCD monitor brand's latest endeavors. LED backlights claim better contrast, and moreover better power efficiency, than the regular CCFl backlights, that used to be the norm for LCD screens.
One thing about LEDs that is different from CCFL backlight is that the latter can diffuse very well, to show different levels of brightness. But LEDs use Pulse Width Modulation to show that they are dimming in brightness, meaning that the light actually is emitting at its full brightness whenever on, and to actually show different levels of brightness, the light is put on and off at fast flicker rates. So if you need a darker image, it is put off for longer periods. But of course the human eye cannot see this happen, it’s all above the fusion threshold of the human eye. These are 3 of our favorite LED-lit LCD monitors released in the very recent past.
Winner : BenQ V2200 LCD Monitor (LED lit)
Publish date: May 11, 2010 1:30 pm| Modified date: December 18, 2013 6:17 pm