REVIEW: Dell U2711 Part 5
We will test the actual behaviour of the regulator in the course of the test. The option to establish the colour model displayed manually is unusual (the monitor distinguishes between YPbPr and RGB, which is not quite correct). Finally, the many image modes of the DELL U2711 can be selected via two additional switches. In the first instance, the monitor distinguishes between "Graphics" and "Video". Especially for use with the computer, the "Graphics" variant should be selected here, via which the two colour space limiting image modes ("sRGB" and "AdobeRGB") can be activated. Access to the RGB-Gain regulator for precise adjustment of the white point in the course of a software calibration is only possible in "Custom Color" mode.
In the modes which can be used for computer usage, most of the options in this menu point are greyed out. The interpolation behaviour can be controlled at three levels. Here, "Fill" always scales the signal to the entire panel surface, "Aspect" gives rise to justified display and "1:1" forces pixel-precise display.
A "Sharpness" regulator changes the image sharpness, even in pixel-precise display. Especially in the "Video" modes, additional options are available, regardless of the concrete selection. Under these are a noise reducer and also a dynamic contrast regulator, which showed its negative side when video signals were being played back – even if it was deactivated or greyed out (more information here in the "Video signal processing" section). If an analogue RGBHV signal is played back, the user can carry out additional fine tuning and change the position of the image.
Audio Settings, PBP Settings, Other Settings, Personalize
The last four menu options include rudimentary audio settings, access to the Picture-in-Picture function and adjustment option for the ISD itself (including menu display duration and language). When the frame is connected via DVI-D, DisplayPort or D-Sub VGA, the Picture-in-Picture function shows the image from another signal input. The summary of the pre-menu can be adjusted for direct access using the "Personalize" option.
No screen manager software is included with the DELL U2711.
The LG H-IPS panel used in the model promises pleasant image quality, together with the WCG-CCFL backlight. Unfortunately, the DELL U2711 also has to do without the A-TW polariser, which is no longer in production, but which effectively suppressed the small number of negative aspects of this panel type (the appearance of dark hues beyond the angle).
With the electronics used, the DELL U2711 ranks amongst those monitors which focus especially closely on electronic image editing. Although it is not possible to carry out a hardware calibration on the model, the 12-Bit LUT and high internal computing precision should ensure that hue losses are low in the course of a calibration if the monitor’s factory settings are close to neutral.
The fact that an 8-Bit panel is used (real 10-Bit panels are also very rare) only has slight effects for workflow in 8-Bit quality. Before actual panel control, a dithering level was used in all displays with similarly powerful technology. This also applies for the 10-Bit variant. Consistent work with 10 Bits per channel would only become possible at all when the model was connected via DisplayPort or HDMI and with support from the graphics card, operating system, driver and application.
Test picture for testing grey gradient.
In the factory settings, we could see absolutely no banding in colour and grey gradients. Slight snowiness in dark hues indicates that an FRC solution is used, which combines spatial and temporal dithering. This side effect is no longer irritating even from a short distance and is no more pronounced on the DELL U2711 than on other, high-quality monitors.
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