Monitors

micro-led-monitors-connect-like-puzzle-pieces-in-hp-multi-monitor-concept

Micro LED monitors connect like puzzle pieces in HP multi-monitor concept

woman using a tri-monitor setup

Enlarge / Yes, there are bigger monitors, but is there a better way to have a tri-monitor setup?

In a technical disclosure published this month, HP explored a Micro LED monitor concept that would enable consumers to easily use various multi-monitor configurations through the use of “Lego-like building blocks.” HP has no immediate plans to make what it has called “composable Micro LED monitors,” but its discussion explores a potential way to simplify multitasking with numerous displays.

HP’s paper [PDF], written by HP scientists and technical architects, discusses a theoretical monitor that supports the easy addition of more flat or curved screens on its left, right, or bottom sides (the authors noted that top extensions could also be possible but they were “trying to keep the number of configurations manageable”). The setup would use one 12×12-inch “core” monitor that has a cable to the connected system. The computer’s operating system (OS) would be able to view the display setup as one, two, or multiple monitors, and physical switches would let users quickly disable displays.

  • The illustration shows a monitor made of a core unit and two extension panels viewed as three monitors (left), two monitors (middle), and two monitors with different orientations (right).

  • This illustration shows two core units and two extensions used to make dual, triple, and quadruple-display setups.

Not a real product

HP’s paper is only a technical disclosure, which companies often publish in order to support potential patent filings. So it’s possible that we’ll never see HP release “composable Micro LED monitors” as described. An HP spokesperson told me:

HP engineering teams are constantly exploring new ways to leverage the latest technologies. The composable Micro LED monitors within the technical disclosure are conceptual, but HP has turned past concepts like this into commercially viable products and solutions.

There’s also growing interest in making multi-monitor workspaces easier to set up and navigate, including by speedier connectivity, enhanced port selection, improved docks, and thinner displays. In January, Samsung teased a concept called The Link that showed thin, 32-inch, 4K LED monitors daisy-chained together “without a separate cable.” Samsung originally said the monitors would connect via pogo pins but later redacted that.

As you’ll see, there’s a lot more that would need to be worked out than what’s in HP’s concept in order to make a real product.

Adjustable multi-monitor setups

HP’s paper goes deeper into how monitors, connected via pogo pins or RFID readers and tags, might enable different single and multi-monitor setups depending on the user’s need.

HP’s concept connects extensions to the core monitors “in a similar way to a jigsaw” and also uses magnets to help alignment. The authors explain:

The core-to-extension connection includes an electrical connection, allowing seamless connectivity to the core unit. They will only physically connect in ways that will function correctly as displays. The magnets in the passive connection covers and extension edges are strong enough to hold adjacent displays together, but not strong enough to support the weight of an extension.

The authors provide various examples of how users might be able to construct different sized monitors with different panels. Suggested users include a video editor who might use a bigger screen for video with a smaller one for editing tools. The paper also touches on further potential innovations, like using different types of tech, such as eInk, for extension displays.

  • An illustration depicting the backside of connected core units (dark gray) with display extensions (light gray).

  • Different-sized configurations.

Like with any multi-monitor setup, bezels or visible seams where the displays connect could distract users. The paper suggests an ideal solution as one that uses “rays originating from pixels near the boundary between adjacent panels” to “propagate across the boundary without any distortion caused by reflection or refraction.”

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amd-stops-certifying-monitors,-tvs-under-144-hz-for-freesync

AMD stops certifying monitors, TVs under 144 Hz for FreeSync

60 Hz is so 2015 —

120 Hz is good enough for consoles, but not for FreeSync.

AMD's depiction of a game playing without FreeSync (left) and with FreeSync (right).

Enlarge / AMD’s depiction of a game playing without FreeSync (left) and with FreeSync (right).

AMD announced this week that it has ceased FreeSync certification for monitors or TVs whose maximum refresh rates are under 144 Hz. Previously, FreeSync monitors and TVs could have refresh rates as low as 60 Hz, allowing for screens with lower price tags and ones not targeted at serious gaming to carry the variable refresh-rate technology.

AMD also boosted the refresh-rate requirements for its higher AdaptiveSync tiers, FreeSync Premium and FreeSync Premium Pro, from 120 Hz to 200 Hz.

Here are the new minimum refresh-rate requirements for FreeSync, which haven’t changed for laptops.

Laptops Monitors and TVs
FreeSync Max refresh rate: 40-60 Hz < 3440 Horizontal resolution:

Max refresh rate: ≥ 144 Hz
FreeSync Premium Max refresh rate: ≥ 120 Hz < 3440 Horizontal resolution:

Max refresh rate: ≥ 200 Hz≥ 3440 Horizontal resolution:

Max refresh rate: ≥ 120 Hz
FreeSync Premium Pro FreeSync Premium requirements, plus FreeSync support with HDR FreeSync Premium requirements, plus FreeSync support with HDR

AMD will continue supporting already-certified FreeSync displays even if they don’t meet the above requirements.

Interestingly, AMD’s minimum refresh-rate requirements for TVs go beyond 120 Hz, which many premium TVs currently max out at, due to the current-generation Xbox and PlayStation supporting max refresh rates of 120 frames per second (FPS).

Announcing the changes this week in a blog post, Oguzhan Andic, AMD FreeSync and Radeon product marketing manager, claimed that the changes were necessary, noting that 60 Hz is no longer “considered great for gaming.” Andic wrote that the majority of gaming monitors are 144 Hz or higher, compared to in 2015, when FreeSync debuted, and even 120 Hz was “a rarity.”

Since 2015, refresh rates have climbed ever higher, with the latest sports targeting competitive players hitting 500 Hz, with display stakeholders showing no signs of ending the push for more speed. Meanwhile, FreeSync cemented itself as the more accessible flavor of Adaptive Sync than Nvidia’s G-Sync, which for a long time required specific hardware to run, elevating the costs of supporting products.

AMD’s announcement didn’t address requirements for refresh-rate ranges. Hopefully, OEMs will continue making FreeSync displays, especially monitors, that can still fight screen tears when framerates drop to the double digits.

The changes should also elevate the future price of entry for a monitor or TV with FreeSync TV. Sometimes the inclusion of FreeSync served as a differentiator for people seeking an affordable display and who occasionally do some light gaming or enjoy other media with fast-paced video playback. FreeSync committing itself to 144 Hz and faster screens could help the certification be aligned more with serious gaming.

Meanwhile, there is still hope for future, slower screens to get certification for variable refresh rates. In 2022, the Video Electronics Standards Association (VESA) released its MediaSync Display for video playback and AdaptiveSync for gaming, certifications that have minimum refresh-rate requirements of 60 Hz. VESA developed the lengthy detailed certifications with its dozens of members, including AMD (a display could be MediaSync/AdaptiveSync and/or FreeSync and/or G-Sync certified). In addition to trying to appeal to core gamers, it’s possible that AMD also sees the VESA certifications as more appropriate for slower displays.

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The 5 most interesting PC monitors from CES 2024

Dell UltraSharp 40 Curved Thunderbolt Hub Monitor (U4025QW)

Enlarge / Dell’s upcoming UltraSharp U4025QW.

Scharon Harding

Each year, the Consumer Electronics show brings a ton of new computer monitor announcements, and it’s often difficult to figure out what’s worth paying attention to. When it comes to the most interesting models this year, there were two noteworthy themes.

First of all, my complaint in 2022 about there not being enough OLED monitors was largely addressed this year. CES revealed many plans for OLED monitors in 2024, with a good number of those screens set to be appropriately sized for desktops. That includes the introduction of 32-inch, non-curved QD-OLED options and other smaller screens for people who have been waiting for OLED monitors in more varied form factors.

Secondly, with more people blending their work and home lives these days, CES brought hints that the line between gaming monitors and premium monitors used for general or even professional purposes will be blurring more in the future. We’re not at the point where the best productivity monitor and ideal gaming monitor perfectly align in a single product. But this week’s announcements have me imagining ways that future monitors could better serve users with serious work and play interests.

For now, here are the most intriguing monitors from CES 2024.

Dell UltraSharps hit 120 Hz

  • Dell started adding 120 Hz models to its UltraSharp series.

    Scharon Harding

  • This monitor is VESA DisplayHDR 600-certified.

    Dell

  • Ports include Thunderbolt 4 with 140 W power delivery. There’s also a pop-out box of ports by the monitor’s chin.

    Dell

Dell UltraSharp monitors have long attracted workers and creatives and, with their USB-C connectivity, even Mac users. The last few CES shows have shown Dell attempting to improve its lineup, with the most landmark innovation being the introduction of IPS Black. With CES 2024, though, Dell focused on improved video resolution.

Dell’s UltraSharp 40 Curved Thunderbolt Hub Monitor (U4025QW), pictured above, is a 39.7-inch ultrawide with a 5120×2160 resolution and a 120 Hz refresh rate. As most monitors are aimed at workers still using 60 Hz, this is a big step up for people with systems capable of supporting 11,059,200 pixels at 120 frames per second. Such speeds have been relegated to gaming monitors for a while, but with TVs moving to higher refresh rates (with encouragement from gaming consoles), more people are becoming accustomed to faster screens. And with other attributes, like a 2500R curve, we wouldn’t blame workers for doing some light gaming on the U4025QW, too.

But Dell says the refresh rate boost is about increasing eye comfort. The UltraSharp U4025QW is one of two monitors with 5-star certification from TÜV Rheinland’s new Eye Comfort program, which Dell helped create, a Dell spokesperson told me last month at a press event.

According to TÜV, the certification program “is no longer limited to the old low-blue-light or flicker-free labels” and now “covers a broader range of safety indicators, such as ambient brightness, color temperature adjustment and regulation, and brightness.” New requirements include brightness and color temperature control for different ambient lighting. Dell’s ultrawide covers this with an integrated ambient light sensor.

The certification also requires a minimum 120 Hz refresh rate, which is probably where Dell got the number from. A Dell spokesperson confirmed to Ars that the use of IPS Black didn’t impact the monitor’s ability to get TÜV certifications and that it could have theoretically earned five stars with another panel type, like VA.

Dell announced bringing 120 Hz to the UltraSharp lineup in November when it debuted two 24-inch and two 27-inch UltraSharp monitors with 120 Hz refresh rates. At CES, Dell proved this upgrade wasn’t a fluke relegated to its smaller UltraSharps and went all in, bringing the refresh rate to a top-line ultrawide 5K Thunderbolt 4 monitor.

The U4025QW has an updated version of ComfortView Plus, which uses hardware to lower blue light levels. I’ve seen it function without making colors turn yellowish, as some other blue-light-fighting techniques do. After not significantly updating ComfortView Plus since its 2020 release, Dell now says it’s using a “more advanced LED backlight” to reduce blue light exposure from 50 percent to under 35 percent.

The effects are minimal, though. Dell-provided numbers claim the reduced blue light exposure could reduce eye fatigue by 8 percent after 50 minutes, but we should take that with a grain of salt. It’s nearly impossible to quantify how well blue light reduction techniques work from person to person.

The UltraSharp U4025QW releases on February 27, starting at $2,400.

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portable-monitors-could-make-foldable-screen-gadgets-finally-make-sense

Portable monitors could make foldable-screen gadgets finally make sense

  • Asus plans to release this foldable OLED monitor in 2024. Electronics retailer Abt Electronics captured footage of it on display at CES.

  • The monitor has a metal chassis and glossy coating.

  • The monitor could help workers quickly add more screen space to setups.

  • In its video, Abt Electronics showed off different angled views of the monitor.

  • Like other foldables, the crease can seemingly catch reflections and glare when the device is bent.

  • Port selection.

  • The portable monitor will come with a sleeve.

Foldable screens have been bending their way into consumer gadgets over the last few years. But with skepticism about durability, pricing, image quality, and the necessity of such devices, foldable screens aren’t mainstream. With those concerns in mind, I haven’t had much interest in owning a foldable-screen gadget, even after using a foldable laptop for a month. However, the foldable portable monitor that Asus is showing at CES in Las Vegas this week is an application of foldable OLED that makes more sense to me than others.

Asus’ ZenScreen Fold OLED MQ17QH announced on Tuesday is a 17.3-inch portable monitor that can fold to a 12.5-inch size. The monitor has 2560×1920 pixels for a pixel density of 184.97 pixels per inch. Other specs include a 100 percent DCI-P3 coverage claim and VESA DisplayHDR True Black 500 certification.

When I think of the ways I use portable monitors, foldability makes more sense than it does with other device types. For example, I love working outside when possible, and an extra 17.3-inch screen that’s easy to carry would make long work sessions with an ultraportable laptop more feasible. The Fold OLED’s 17.3 inches is near the larger size for a portable monitor, but the fold and comparatively light weight should make it feel more transportable than similarly sized monitors that don’t fold in half.

Regarding dimensions and weight, Asus compares the monitor to a 13-inch thin-and-light laptop. The monitor weighs 2.58 lbs—that’s notable heft for something meant to be lugged around (the smaller Lenovo ThinkVision M14 weighs 1.3 pounds, for comparison). But 2.58 lbs is still on the lighter side for a 17-inch-class monitor (Asus’ 17-inch ROG Strix XG17AHP is 3.88 lbs), and Asus’ foldable is similarly thin.

Asus credits a “waterdrop-style hinge” for the monitor’s thin size. It’s 0.38 inches (9.7 mm) thick when unfolded, which should translate to about 0.76 inches (19.4 mm) when the monitor is folded shut.

It feels more natural for a portable monitor to add a fold for easy transport, since portability is right in the device category’s name.

Plus, a portable monitor doesn’t have the same types of component and cooling concerns as computing devices like laptops and phones do.

Crease concerns

I haven’t seen Asus’ foldable monitor in person, so I can only speculate on image quality. The monitor is still being finalized, but based on images and video from people who’ve seen the ZenScreen Fold OLED in person at CES and my experience using foldables, I expect the display to show a crease that picks up reflections and/or glare when bent. But considering that a portable monitor will typically be open flat, this doesn’t matter the same way it would with other types of foldable devices.

However, what matters is whether that crease is still visible when the monitor’s flat. A portable monitor is likely to be viewed from different angles, which could make even a slight crease pop. For what it’s worth, The Verge reported that the Asus monitor’s crease seemed to “disappear” when flat, but I remain highly cautious.

Asus’ monitor announcement showed confidence that “you’ll hardly be able to tell that there’s a hinge behind the display” when it’s open because of the waterdrop-style hinge, which is the same hinge type that the Samsung Galaxy Z Fold 5 uses, as pointed out by The Verge. The hinge type reportedly makes for a looser feel when the device is closed. Samsung Display has claimed that this puts less stress on the display and minimizes the gap seen when the foldable is shut. Asus’ announcement noted that the foldable monitor’s hinge uses “hundreds of parts,” which “all but eliminat[e] the gap.”

A close-up of the hinge, shown on-video by Abt Electronics.

Enlarge / A close-up of the hinge, shown on-video by Abt Electronics.

Like with any other foldable, though, durability remains a concern. A portable monitor may be moved around frequently, and Ars has seen firsthand how fragile a foldable screen can be, including with those small-gap designs.

Speaking of different viewing angles and visibility outdoors (and in bright rooms), the use of OLED suggests that this monitor won’t be as bright as some LCD portable monitors. That could limit visibility, depending on your use case.  Asus hasn’t shared a brightness spec for the ZenScreen Fold.

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nvidia’s-g-sync-pulsar-is-anti-blur-monitor-tech-aimed-squarely-at-your-eyeball

Nvidia’s G-Sync Pulsar is anti-blur monitor tech aimed squarely at your eyeball

What will they sync of next? —

Branded monitors can sync pixels to backlighting, refresh rate, and GPU frames.

Motion blur demonstration of G-Sync Pulsar, with

Enlarge / None of this would be necessary if it weren’t for your inferior eyes, which retain the colors of pixels for fractions of a second longer than is optimal for shooting dudes.

Nvidia

Gaming hardware has done a lot in the last decade to push a lot of pixels very quickly across screens. But one piece of hardware has always led to complications: the eyeball. Nvidia is targeting that last part of the visual quality chain with its newest G-Sync offering, Pulsar.

Motion blur, when it’s not caused by slow LCD pixel transitions, is caused by “the persistence of an image on the retina, as our eyes track movement on-screen,” as Nvidia explains it. Prior improvements in display tech, like variable rate refresh, Ultra Low Motion Blur, and Variable Overdrive have helped with the hardware causes of this deficiency. The eyes and their object permanence, however, can only be addressed by strobing a monitor’s backlight.

You can’t just set that light blinking, however. Variable strobing frequencies causes flicker, and timing the strobe to the monitor refresh rate—itself also tied to the graphics card output—was tricky. Nvidia says it has solved that issue with its G-Sync Pulsar tech, employing “a novel algorithm” in “synergizing” its variable refresh smoothing and monitor pulsing. The result is that pixels are transitioned from one color to another at a rate that reduces motion blur and pixel ghosting.

Nvidia also claims that Pulsar can help with the visual discomfort caused by some strobing effects, as the feature “intelligently controls the pulse’s brightness and duration.”

  • The featureless axis labels make my brain hurt, but I believe this chart suggests that G-Sync Pulsar does the work of timing out exactly when to refresh screen pixels at 360 Hz.

    Nvidia

  • The same, but this time at 200 Hz.

    Nvidia

  • And again, this time at 100 Hz. Rapidly changing pixels are weird, huh?

    Nvidia

To accommodate this “radical rethinking of display technology,” a monitor will need Nvidia’s own chips built in. There are none yet, but the Asus ROG Swift PG27 Series G-Sync and its 360 Hz refresh rate is coming “later this year.” No price for that monitor is available yet.

It’s hard to verify how this looks and feels without hands-on time. PC Gamer checked out Pulsar at CES this week and verified that, yes, it’s easier to read the name of the guy you’re going to shoot while you’re strafing left and right at an incredibly high refresh rate. Nvidia also provided a video, captured at 1,000 frames per second, for those curious.

Nvidia’s demonstration of G-Sync Pulsar, using Counter-Strike 2 filmed at 1000 fps, on a 360 Hz monitor, with Pulsar on and off, played back at 1/24 speed.

Pulsar signals Nvidia’s desire to once again create an exclusive G-Sync monitor feature designed to encourage a wraparound Nvidia presence on the modern gaming PC. It’s a move that has sometimes backfired on the firm before. The company relented to market pressures in 2019 and enabled G-Sync in various variable refresh rate monitors powered by VESA’s Display port Adaptive-Sync tech (more commonly known by its use in AMD’s FreeSync monitors). G-Sync monitors were selling for typically hundreds of dollars more than their FreeSync counterparts, and while they technically had some exclusive additional features, the higher price points likely hurt Nvidia’s appeal when a gamer was looking at the full cost of new or upgraded system.

There will not be any such cross-standard compatibility with G-Sync Pulsar, which will only be offered on monitors with a G-Sync Ultimate badge, and then further support Pulsar, specifically. There’s always a chance that another group will develop its own synced-strobe technology that could work across GPUs, but nothing is happening as of yet.

In related frame-rate news, Nvidia also announced this week that its GeForce Now game streaming service will offer G-Sync capabilities to those on Ultimate or Priority memberships and playing on capable screens. Nvidia claims that, paired with its Reflex offering on GeForce Now, the two “make cloud gaming experiences nearly indistinguishable from local ones.” I’ll emphasize here that those are Nvidia’s words, not the author’s.

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