A curved monitor is an arc of a circle. Two measurements determine how it will work once placed on a desk: its width, which determines the desk depth required, and the position of the chair, which should be centered on the arc. Display settings come afterward and do not depend on the curvature. The following covers the aspects specific to a curved panel: how much space it takes up, stand orientation, arm mounting, and adding a second monitor alongside it. The choice of curvature itself is covered in our guide to choosing a curved monitor.
Panel width determines the required desk depth
A diagonal measured in inches says nothing about how much space a monitor occupies on a desktop. Width does. On JAPANNEXT curved models, it ranges from 818 to 948 millimeters.
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The 34-inch UWQHD curved monitor is 818 millimeters wide and 365 millimeters high, and weighs 6.9 kilograms.
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The 37.5-inch UWQHD+ is 898 millimeters wide and 461 millimeters high, and weighs 8.1 kilograms.
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The 39.7-inch WUHD is 948 millimeters wide and 420 millimeters high, and weighs 9.8 kilograms.
Width determines the viewing distance. The wider the panel, the farther your eyes need to be from it to take in both edges without turning your head. On a desktop 60 centimeters deep, a 39.7-inch monitor leaves about 45 centimeters between your eyes and the center of the image once the keyboard is in place: that is too close, and the edges fall outside the comfortable field of view. A 75- to 80-centimeter-deep desk brings both ends back into the viewing axis.
The rule to remember: measure the depth of the desktop before choosing the diagonal, not the other way around.
Sit at the center of the arc, never to the side
A curved panel is designed for a single viewing position located at the center of the arc. From this point, both edges are the same distance from your eyes as the center, and that is the entire benefit of the curvature.
If you sit one-third of the way across the width, you lose this benefit and introduce a drawback: the far edge moves away while the near edge moves closer and appears at an angle. On a 39.7-inch monitor, this offset represents more than 30 centimeters of difference between the two edges. The image remains readable, but the curvature works against your line of sight instead of helping it.
The rule: align your nose, keyboard, and the center of the panel on the same axis. Placing a curved monitor in the corner of a desk and turning it toward an off-center seat amounts to buying curvature without actually using its benefit.
What the stand allows — and what it does not
The stands supplied with JAPANNEXT curved models offer three adjustments, with similar ranges from one model to another.
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Swivel: 30 degrees to the left and 30 degrees to the right on all three models.
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Tilt: from -5 to +15 degrees on the 34- and 37.5-inch models, and from -5 to +20 degrees on the 39.7-inch model.
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Height: 130 millimeters of adjustment on the 34-inch model, 135 on the 37.5-inch, and 150 on the 39.7-inch.
Swivel is useful for bringing the panel toward your seat when the desk does not allow you to center it perfectly. It is not intended to share the image with someone sitting beside you: from another seat, the curvature produces exactly the drawback described above.
Adjust the tilt last, once the height has been set. On a curved panel, a steep tilt distorts the perception of straight interface lines because the horizontal curvature and vertical tilt combine. A curved monitor is better kept close to vertical than a flat monitor.
Portrait mode is not suitable for a curved panel
None of the curved models in the catalog specifies 90-degree rotation, and the geometry explains why. When turned on its side, the curvature stops surrounding the viewer and instead curves into the image at its center: the top and bottom of the column move closer to the eyes while the center moves farther away. The result distorts text lines instead of making them easier to read.
A workstation that needs a vertical column for coding or reading long documents is better served by using a flat monitor as a secondary display rather than rotating a curved one.
Arm mounting: what to check before buying
All four curved models in the catalog have a VESA 100x100 mounting pattern, meaning four mounting points spaced 100 millimeters apart in a square. This is the most common standard and makes the monitors compatible with most monitor arms on the market.
Two points should be checked on the arm's specifications before buying, neither of which is determined by the monitor itself.
The first is the weight range. The models weigh 6.9, 8.1, and 9.8 kilograms: an arm rated for 2 to 8 kilograms is suitable for the 34-inch model but cannot support the 39.7-inch model. An undersized arm does not necessarily break; it can gradually sag.
The second is depth clearance. The back of a curved panel is not flat: the mounting points sit farther back than the edges of the monitor. An arm with a short joint can hit the wall before the panel is at the right distance from your seat.
Adding a second monitor beside a curved one
The second monitor should not simply be placed flat in line with the first. It should be angled toward the seat so that its inner edge continues the arc of the curved monitor. Positioned parallel to the wall, it creates a sharp angle at the junction: your eyes move from a surface facing you to one that angles away.
Two reference points are useful for this setup. Align the top edges of the two panels, not the stands, whose heights may differ. And place the second monitor on the side of your non-dominant hand, because you will look at it less often: the curved monitor remains on the main axis.
The 34- and 37.5-inch models include a KVM switch, allowing you to control two computers with a single keyboard and mouse. On a two-computer workstation, this avoids adding another box to the desk. All curved monitors in the catalog feature a USB-C port delivering 65 watts, which powers a laptop through the same cable used for the image.
