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)
First runner up: AOC V22 LCD monitor(LED lit)
AOC is very popular among the local masses, mainly due to the wide array of features they offer in their models. There is a lot of value added in the form of monitor attached candy like a webcam, attached mic and speakers allowing multimedia and chatting. As for this LED model, it comes with all that and off course an LED backlight. The design is gaudy and will stand out in a crowd due to its transparent plastic strip rimming around the bezel, and an aquamarine accent on its lower edge. Connectivity options are basic with single HDMI and VGA inputs for video. There is no DVI, and moreover there is no DVI to HDMI cable supplied, so that’s an extra expense for owners of graphics cards with only DVI outs. Also, there is a USB input. The native res is 1680 x 1050, 16:10, and this is my first gripe with the otherwise great looking monitor (16:9 is the preferred norm these days). Brightness is at 280 cd/m2 while contrast is rated at 100,000:1 dynamic. The response time is 2 ms (grey to grey). During our tests we got slight white level clipping, because the backlight is not the brightest. Greyscale wise we have a more or less neutral response, except for a bluish tinge at mid greys around 60 IRE. The colors were vibrant, with decent accuracy too. There was not too much saturation, except a tad bluish feel, which can be reduced in the menu. Backlight bleed is not a serious issue. Motion performance is very, very good. In Left For Dead 2, there were no motion blur issues or moiring.
Second runner up: Viewsonic VX1932wm-LED Lit LCD Monitor
At an MOP of Rs. 7,500, the monitor is priced alright for a 19-incher, but I must say I was expecting a little more juice in terms of candela output. It makes this list nonetheless, as the colors and detail are above average.
Published Date: May 11, 2010 01:30 pm | Updated Date: May 11, 2010 01:30 pm