REVIEW: BenQ EW2430 Part 2

Contents:IntroductionScope of supplyOptics and mechanicsTechnologyOperating noisePower ConsumptionConnectionsOperationOSDPicture qualityGreyscale and black screenBrightness, contrast and black levelBrightness distributionViewing anglesColour reproductionMeasurements and calibrationColour space comparison3D colour space comparisonColorimetric testssRGB profile accuracyUGRA testInterpolationResponsivenessLatencySoundDVD and VideoVideo signal processingSupported refresh ratesDeinterlacingScalingOverscanColour models and signal levelsRatingConclusion

Power Consumption

Brightness Manufacturer Measured EU 2010 Efficiency Operation maximum 100 % 65 W * - - - Factory setting 100 % - 33,4 W - - 140 cd/m² 32 % - 21,1 W - 3,5 cd/W Operation minimum 0 % - 14,3 W - - Standby mode - 0,5 W 0,3 W 2,0 W - Off - - 0,0 W 1,0 W -

* see next paragraph

With 33.4 watts in the factory setting and 21.1 watts at workaday conditions, the power consumption of the EW2430 is similar to its numerous colleagues with the same AUO panel. With 3.5 cd/W, efficiency, as expected, is lower than that of TN devices, which in some cases emit 30 per cent more light per watt. Consumption values are measured without the audio portion and USB hub. Even with audio amplifiers fully utilized and USB hub in use, we cannot reach the maximum consumption of 65 watts as specified by BenQ.

The standby consumption of only 0.3 watts even complies to the forthcoming EU directive, becoming effective in 2013. When turned off, consumption of the monitor decreases to zero.

Connections

When it comes to image inputs, the EW2430 is very well equipped: While a pair of HDMI and one DVI-D inputs serve for digital sources, a VGA connector covers analogue signals. Three jack connectors qualify for both audio input and output, as well as a headphone. The USB upstream port is situated next to the other jacks on the bottom of the rear side, whereas the four downstream ports are applied in the centre of the left side.

As many as three digital inputs, plus VGA.

Operation

The BenQ EW2430 model is operated with five button keys, which are located in the lower right corner of the far side of the display. The mechanical keys work very reliably with a noticeable pressure point. Printed on the front panel frame quite unobtrusively, the non-illuminated lettering in low ambient light is no longer legible.

Front lettering, control keys on the back.

OSD

Displayed in the top menu bar, the symbols of the five sub-menus have the form of tabs. The tab of the currently active sub-menu is highlighted green, the lower part lists relevant options.

OSD main menu.

The OSD opens upon pressing the menu button, sub-menus and options are activated by pressing the enter key. For selection and most settings, two arrow keys are responsible. Once activated, an item is left by jumping back one level with the help of the menu button. Though this is functional, it is not always very intuitive.

OSD menu Figure 1 and Figure 2.

The OSD - not least due to the relatively small number of options - appears clear and understandable, with single items being distributed conclusively.

Contents:IntroductionScope of supplyOptics and mechanicsTechnologyOperating noisePower ConsumptionConnectionsOperationOSDPicture qualityGreyscale and black screenBrightness, contrast and black levelBrightness distributionViewing anglesColour reproductionMeasurements and calibrationColour space comparison3D colour space comparisonColorimetric testssRGB profile accuracyUGRA testInterpolationResponsivenessLatencySoundDVD and VideoVideo signal processingSupported refresh ratesDeinterlacingScalingOverscanColour models and signal levelsRatingConclusion

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