I
Thirty-two by nine
The width of two QHD displays with no seam between them. 5120 × 1440 pixels, wrapped at 1800R so the far edges sit as close to your eyes as the centre.
Réf. N49·240
Alter Ego · 49-inch curved QD-OLED monitor, 240 Hz
Nocturne 49
Our flagship. A 49-inch QD-OLED panel curved to 1800R, at 5120 × 1440 and 240 Hz. Every pixel makes its own light and switches fully off, so black on Nocturne is simply the absence of light.
0.03msGrey-to-grey
1.5M:1Contrast
240HzRefresh
Best for Movies, games and dark rooms
Made in limited, numbered batches · Waitlist open
Made in limited, numbered batches
Waitlist members are offered a unit first, with no commitment
1-year limited warranty and a named advisor
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The reverse
Ribbed, ventilated and finished as carefully as the front. HDMI 2.1, two DisplayPort 1.4, and USB-C carrying 90 W of power, with a built-in KVM to run two computers from one keyboard.
III
From above
The curve, seen from above. A tripod base keeps the footprint narrow at 14.2 inches deep, and the column lifts 120 mm.
Specifications
Nocturne 49
Figures from the panel specification. Typical values are labelled typical.
Display
- Panel
- 49″ QD-OLED, curved 1800R
- Resolution
- 5120 × 1440 (Dual QHD), 32:9
- Refresh rate
- 240 Hz, Adaptive-Sync / FreeSync
- Response time
- 0.03 ms grey-to-grey
Picture
- Contrast
- 1,500,000:1
- HDR
- DisplayHDR True Black 400
- Brightness
- 250 cd/m² typical
- Colour
- 99% DCI-P3 · 99% Adobe RGB · 100% sRGB
- Colour depth
- 10-bit, 1.07 billion colours
Connectivity
- Video
- 1 × HDMI 2.1 · 2 × DisplayPort 1.4 · 1 × USB-C
- USB-C power
- 90 W
- USB
- 2 × USB-A 3.0 · 1 × USB-B upstream
- Features
- KVM switch · Picture-in-picture / by-picture
- Audio
- Speakers 2 × 5 W + 10 W · headphone out
Ergonomics
- Height
- 120 mm travel
- Tilt
- −5° to +20°
- Swivel
- ±20°
- Wall mount
- VESA 100 × 100
Dimensions
- With stand
- 47.2 × 14.2 × 22.6 in (W × D × H)
- Without stand
- 47.2 × 6.7 × 14.4 in
- Weight
- 20.9 lb
In the box
- Contents
- Power cable · DisplayPort cable · USB-C cable · Manual
- Warranty
- 1 year, limited
Nocturne 49, questions
All questionsIs Nocturne 49 good for gaming?
Yes. It refreshes at up to 240 Hz with 0.03 ms grey-to-grey response and supports Adaptive-Sync and FreeSync, on a 49-inch 1800R QD-OLED panel.
Can Nocturne 49 connect to a laptop with one cable?
Yes. Its USB-C port carries picture, data and up to 90 W of power to a laptop.
Can Nocturne 49 be used with two computers?
Yes. A built-in KVM switch lets one keyboard and mouse control two computers, and picture-by-picture can show both side by side.
Does Nocturne 49 have speakers?
Yes: two 5 W speakers and a 10 W speaker, plus a headphone output.
Can Nocturne 49 be wall or arm mounted?
Yes. It uses a VESA 100 × 100 mount.
How do I care for the OLED panel?
Hide static taskbars, use a dark theme where you can, and let the display sleep when you step away. See the Journal article Living with an OLED display.
Deciding? Nocturne 49 vs Horizon 49 · Nocturne 49 vs Solitaire 27 · Atelier 40 vs Nocturne 49
Further reading
Journal
The Maison · 9 October 2026
What is Alter Ego? A display maison, explained
Alter Ego makes a small collection of premium monitors and releases them in limited allocations. Here is what that means, and why we work this way.
Design · 9 October 2026
The case against RGB
Alter Ego displays carry no colour-changing RGB effects. Why we left them out, and what we put in their place.
Design · 9 October 2026
The object on the desk
A display spends years in front of you and in view of everyone who walks into the room. Notes on designing a monitor to be looked at, not only looked through.
