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Asus VS239H characteristics


The Good IPS screen available. Looking for a little, you can pick it up for $ 170. A decent warranty period.

The Bad Buttons can be frustrating. Display too sharply. Not great for self-contained HDMI input. Limited pixel policy.

The Bottom Line The VS239H is a standard monitor that does the job, though with a cheaper IPS screen rather than a lower TN. If you have basic needs, this may be for you – just be aware of the limited pixel policy.

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7.5 Overall

Quick access

  • Specs at a glance
  • Stand and ergonomics
  • Connections
  • Buttons and OSD
  • Performance
  • Warranty
  • Conclusion

Thanks to the implementation of E-IPS, obtaining good quality images does not necessarily require a bank robbery at first.

Asus’ VS239H is a beast that delivers 23 inches of IPS technology, has 1920 horizontal pixels and 1080 vertical ones. You are not going to find unnecessary entrances or extra fancy features here – this is a monitor designed to meet the basic needs of most people while giving a decent picture.

(Credit: Craig Simms)

Specs at a glance

Size 23 inches
Resolution 1920×1080
Aspect ratio 16:9
Pixel pitch 0.265
Panel technology IPS
Viewing angles
(10:1 contrast)
H: 178°
V: 178°
Response time 14ms — although Asus doesn’t mention what method it used to measure.
Max vertical refresh 60Hz
Connections DVI, HDMI, VGA, 3.5mm line out
Accessories DVI, VGA, power cables

Stand and ergonomics

Unless you are Dell, most monitor manufacturers do not offer the full range of motion on their stands, offering tilt only. Asus is no exception here. You won’t find any cable management either, although the horizontal angle ports do in some way reduce clutter.

The Asus stand is extremely simple.
(Credit: Craig Simms)

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Power line, HDMI, DVI, VGA and 3.5mm.
(Credit: Craig Simms)

Buttons and Screen Display (OSD)

Asus mounts its buttons under the monitor, marking them on the front of the screen. You will have to manage your muscle memory, especially in the dark – buttons are not very special.

It is easy to win this, sellers: front button attachment, highlight them and make the menu contextual.
(Credit: Craig Simms)

OSD is an easy-to-use, managed menu, with categories on the left and options on the right. Asus doesn’t really deviate from the basic formula of brightness, contrast, sharpness and a couple of presets. We recommend skipping them all, setting the monitor to Standard mode from the Wonderful menu item, then clicking on the Color section and adjusting the RGB value yourself via the Color Temperature option.

Simple OSD for direct monitor.
(Credit: Craig Simms)


LCD tests Lagom.nl

After calibrating to a target brightness of 140 cd / m² using X-Rite i1Display 2, Eye-One Match 3 and adjusting with HCFR, the VS239H went through Lagom.nl LCD tests.

Image tests
Contrast Sharpness Gamma Black level White saturation Gradient
Pass Too sharp Pass Pass Pass Very slight banding towards the dark end of the scale.

The Asus screen goes through image tests, only slightly tripping over gradients and rendering the image too sharp. The OSD screen prevents sharpening if you do not use a VGA port, so nothing can be done here.

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Inversion pixel walk tests
Test 1 Test 2a Test 2b Test 3 Test 4a Test 4b Test 5 Test 6a Test 6b Test 7a Test 7b
Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass

The VS239H – the only monitor we tested to pass all pixel inversion tests – typically fails between four and four. Although there is very little movement throughout the picture, there is no visible flicker.

Input lag

Measured against the Samsung SyncMaster 975p CRT and using the Canon 40D at a shutter speed of 1/320, an average of more than 60 photos were taken with StoppUhr. The delay time was very low – the Asus VS239H will make a decent gaming monitor if you are not set to 120 Hz.

HDMI performance

Although the monitor may have an HDMI port, there is no guarantee that it will display the image as expected. We plugged in the PlayStation 3 and tested it for 24x and fate, and ran the HQV Blu-ray test to see how well it handles the intertwined source and noise.

24p capable Understands YUV Mission: Impossible III
scene 11 judder test
Mission: Impossible III
scene 14 judder test
No Yes Judder Judder
HQV noise
HQV video
resolution loss
HQV jaggies
HQV film
resolution loss
HQV film
resolution loss —
stadium score
Total score
out of 100
0 0 0 0 0 0

Although the 1080i looks subjectively better, if it is softer on Asus than on other monitors, it does not pass any of the HQV tests. 24p is also not supported – this is the best-kept monitor for games; a standalone video player is unlikely to do well unless it has built-in custom filters.

Viewing angles

Viewing angles were made using the Canon 40D in spot metering, with only shutter time adjusting for good exposure.

Viewing angles are better than TN, as you would expect from an IPS monitor, but the horizontal is not as good as the premium IPS panels.
(Credit: Craig Simms)

Light bleed

In our sample, there were two points of apparent light, bleeding on the right side, when a completely black screen was displayed.

It is important to note that the effects of light bleeding are likely to vary from monitor to monitor, regardless of size.

Power consumption

We measured energy using a Jaycar digital energy meter. It is important to note here that due to the limitations of the meter, the measurements are limited to 1 W or more and reported in 1 W increments.

All measurements, screen brightness and contrast were set to 100 percent and the test image was shown.

Juice Box
Maximum power draw 27W
Power-saving mode

The Asus monitor is quite economical, considering its size, and properly goes into power save / shutdown modes.


Asus covers the VS239H with a three-year warranty. Although quite competitive, its defective pixel policy is not, requiring more than three bright points or more than five dark points before it is satisfied with a warranty request.


The VS239H is a standard monitor that does the job, though with a cheaper IPS screen rather than a lower TN. If you have basic needs, this may be for you – just be aware of the limited pixel policy.

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