REVIEW: Asus VS229H Part 6

Responsiveness

We have measured the VS229H in native resolution at 60 Hz via the DVI port. In order to carry out the measurement, the monitor was reset to the factory setting.

Response time and manner of acceleration

The response time is calculated for the black-white transition and the best grey-to-grey shift. In addition, we list the average for our 15 measurement points.

Asus quantified a reaction time of 14 milliseconds in the data sheet. We measure the fastest grey-to-grey shift with 14.8 milliseconds and black to white with 13.7 milliseconds. Averaging 21.7 millisecond over all, the response time (back and forth) for our 15 measured values is a little longer, but quite typical for an IPS panel.

Slightly longer response times, very neutral manner of acceleration.

The OSD does not contain an overdrive option. Only the OSD of the version VS229H-P features a menu item dubbed "Trace Free," with which the reaction time can be adjusted from 0 and 100.

The measured brightness trends show restrained acceleration that at all measuring points works very neutral and without overshoots. Because of that, response times turn out to be a little longer than what would be technically possible, but brightness changes are completed after only one frame.

Latency

The latency is determined as sum of the signal delay time and half the average frame rate time. With the VS229H, we measure an extremely short signal delay of only 0.9 milliseconds.

Until the desired brightness is reached, another 10.7 milliseconds are passing – on average. But yet is the mean total latency with 11.6 milliseconds absolutely suitable for gaming.

Backlight

The LED backlight of the VS229H is PWM-controlled. In order to set brightness levels below 100 per cent, short dark periods are inserted. At 140 cd/m² in the workplace, we measure a switching frequency of 240 Hz and a duty cycle of 55 per cent.

Possibly, very sensitive people may therefore perceive a backlight flickering.

The backlight is PWM controlled.

Subjective assessment

The practice test does not reveal unusual ghosting or motion blur. Perhaps ambitious players may be more careful here, as the IPS panel does not have the fast response times of a TN variant.

Sound

Sound signals are solely processed at the HDMI input of the VS229H. Since no speakers are installed, playback is possible at the headphone output only.

If the HDMI output is selected and active, volume can be controlled via the system settings of the OSD.

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