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Is AOC C4008UV8 safe for office


The Good The AOC C4008VU8 has a large amount of screen real estate and can display up to four sources at a time. The color goes beyond the typical sRGB color gamut and has decent color accuracy for everyday needs.

The Bad There are noticeable differences in the angles – including the top, bottom and sides when you sit in front of it – plus it is high and the stand does not allow you to raise or lower it. There is no adaptive refresh rate support, but the sight is visible and only one of the HDMI inputs is version 2.0, all disappointing for PC gaming.

The Bottom Line For a multi-core monitor in tight places, the 40-inch AOC C4008VU8 4K UHD display may be correct. But in general it is not a knockout for money.

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7.9 Overall

  • Design
  • Features
  • Performance

I admire the big 4K monitors. When I work, I have more windows and applications open than my operating system normally can, and there is nothing like this for working with photos (except maybe a big one 8K monitor ).

When I decided to review the 40-inch curved AOC display, it was because I had mistakenly noted in my notes that it was worth $ 600 and wanted to see if it was a good deal for the big budget screen. Specifications sounded great for the money: a huge 10-bit UHD (3,840×2,160) panel with a nice selection of connectivity options, built-in speakers and four USB ports.

Much later, I realized that it actually costs about $ 900. I was ambiguous about this at $ 600, and even more so at a higher price. (It looks like the price in Australia is $ 899; I don’t think it’s available in the UK, but by comparison, the price in the US directly turns to about 682 pounds.)

A forty-inch 16: 9 display is typically for commercial purposes, such as signage and conference rooms. There are not many of this particular size, and there are only two I can find curves – and the curve makes no sense at all for commercial applications. But size is also an amazing fit for personal use. (And the C4008VU8 also boasts impressive features to the only one I found, the Philips BDM4037UW, so there is basically only one.)

The main characteristics of the manufacturer

Price (MSRP) $899.99, AU$899
Panel type VA
Backlight type LED
Size (diagonal) 40
Curve radius 3000R
Resolution 4K UHD (3,840×2,160)
Aspect ratio 16:9
Pixel pitch (mm) 0.23
Maximum gamut 85 percent NTSC (equal to about 84 percent Adobe RGB)
Rotates vertically No
Typical brightness (nits) 300
Sync standard None
Maximum vertical refresh rate (at HD or higher resolution) 60Hz
Gray/gray response time (milliseconds) 5
Release date April 2017

Everything is accessible

Overall it is quite well designed. The monitor is easy to install; the arm of the stand joins and you just twist the base with your thumb. Be prepared to remove the protective plastic from each surface, which took me about 10 minutes.

The connectors are all visible and easy to get to the back, so at least we can cross one of our pets off the list – except you don’t care what the backrest looks like with everything just hanging out because there’s no cable management. I also like the single joystick that you press to turn on and off and use to navigate the OSD menu. However, you cannot reset the right access left / left / up / down. And the menu is stretched to fit at the bottom, which is weird and annoying.

You can connect it to up to five video sources and display up to four video sources simultaneously on screen or with one picture in a picture. Flexibility is good, especially if you want to connect sources such as Blu-ray players, and is a VGA connector for legacy hardware. It also has a new Bright Frame feature that allows you to define a rectangle on the screen with different brightness settings to highlight or clear this area. However, this does not work in conjunction with displaying multiple inputs, so you cannot use it to highlight a specific source window.

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HDMI 1 x 1.4, 1 x 2.0
DisplayPort 2 x 1.2
USB Type-A (out) 4 x USB 3.0
USB 3.0 (in) 1
Built-in speakers 2 x 5w
Headphone jack/audio in Yes/Yes

AOC sells its 3000R curvature radius as a “deep curve”, which is not the case. But it is good: if it were as deep as depicted in the marketing illustrations of the company, it would be quite unsuitable. It’s actually a pretty thin curve. When you normalize it – adjusting the screen size and aspect ratio – the curve is roughly comparable to that Samsung CF791 .

A 4K monitor with room to spare

Apart from the PIP / PBP capabilities, there is not a ton of distractions on the OSD. There are a few presets – eco mode settings – but all they seem to do is change the brightness and adjust the RGB balance very slightly to varying degrees. There is a recharge mode to speed up the game refresh rate, but I didn’t notice much difference – there are still many ghosts.

There are three gamma mode parameters on the monitor that are not so well called Gamma1, Gamma2 and Gamma3. I’m not sure why – they are everyone average 2, 1.9 and 1.7, although the gray white dots vary greatly and none of them are useful. And the guide is pretty useless if you want to know what a particular installation is doing (for example, eco-mode Sport – Sport mode). There are clock, phase and controls for overclocking, though you probably want to do this. through the software, if any. Clear Vision enhances low resolution images.

Unpacking marketing

At least one of the marketing requirements is true: tests confirm that it can display 100 percent of the colors in the sRGB range – it goes beyond the green and red – and about 83 percent of Adobe RGB, which is larger than a typical general-purpose monitor. One of the unique monitor modes is Dynamic Color Boost (DCB), which essentially oversaturates memory colors – blues, greens and skin tones. I don’t find it very enjoyable, but YMMV.

The AOC says it’s a 10-bit panel, and since there’s no way to test 10-bit versus 8-bit + FRC, we’ll have to take her word for it. It displays 10-bit test gradients in Photoshop more smoothly than an 8-bit display when connected to a workstation card, but it just eliminates that it’s an 8-bit panel.

The center contrast is very high, in part because the display provides dark, dark colors in most of the brightness ranges, even when dynamic contrast is off. Brightness comes out to about 285 nits; the default brightness in the default settings is about 250. Even with the default “warm” setting, the white dot varies significantly in the brightness range, but it’s always relatively cool – in sRGB settings it’s about 6,900 KB. You can get it below by following the blue channel through the menu.

However, the company also emphasizes that “the VA panel has wide viewing angles, allowing users to enjoy consistent color uniformity and accuracy at any angle.” This is true only when you are sitting at a distance from the TV from the monitor. Using it as a desktop display, the only place that looks right is what you look directly at. Of course, you can see and use areas beyond the axes, but the uniformity and accuracy of the viewing angle is nothing to boast about. The contents of the outermost areas of the screen are apparently washed away. But this is typical of VA panels; I only call it because the AOC does. I didn’t see any flicker, although I usually don’t (C4008VU8 uses direct backlight control, not PWM, so theoretically you shouldn’t see any).

In addition, the uniformity is not great, and noticeable vignetting (darkness) on the sides of the screen. There is a uniformity option on the screen, but it looks worse.

That’s why where you sit relative to the screen matters, and it’s complicated by the height of the display; too much of it around the corner. Therefore, the inability to raise or lower the display becomes a problem. You can tilt it slightly forward and slightly backward, but that’s it.

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You might think that all this screen real estate would make it great to work with, but the low-contrast out-of-the-way viewing that represents most of the display, the height and the distraction of rough text – despite the above average pixel density of about 110 pixels per inch, you can see the individual pixels at a working distance, or at least I can – it just doesn’t work for me. If it were a TV, the optimum viewing distance would be just over 3 feet / 0.9 meters, which does not work in many settings. For example, I sit no more than 26 inches / 66 cm from my largest displays at work, and it feels far away. And many couples aren’t even deep enough to sit that far back.

But this might be a good idea if, in addition to using it as a PC display, you also want to view 4K UHD videos from a further distance back in tight space, given its low input lag (approximately 14 milliseconds after Bodnar sensor), this can make a good console partner.

However, in PC-based fast gaming, it’s not as bad as I initially thought it would be – even without the adaptive update, I didn’t have much of a tear in Doom, playing at 1440p to reach plus 120 frames per second. frame rate, but it depends on the game engine. I had problems stuttering with Bioshock Infinite in 4K, but it could have been my system (GTX 1080) combined with the game. In any case, the height of the monitor forced me to ride Skylines in BI somewhat tedious, perhaps because too much movement occurred in my vertical peripheral star. And it looks good, despite the out-of-the-box restriction.

Also tiny, tinny, echo speakers shoot from behind. They are better than nothing at best.

Not for everyone

Even if it wasn’t $ 900, I think the C4008VU8 meets a relatively narrow set of needs. If you need a thing that does dual work as a PC or console monitor and TV in a relatively small space – think in a dormitory or in a Manhattan studio – and your budget can go so far, you may like it. Otherwise, I recommend choosing something from the 32- or 34-inch range if you like it larger but less expensive.

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