The LG UltraGear 39GX950B-B is a 39 inch ultrawide 1500R curved monitor delivering next-gen performance through a 4th-generation Tandem OLED panel. Operating at a native 5K2K (5120x2160) resolution, its built-in processor features hardware-driven AI upscaling to provide a perfectly stabilised image without extra GPU load. At the centre of its capabilities is a Dual Mode refresh rate toggle, allowing seamless shifting between high-fidelity 5K2K at 165Hz and ultra-fast 330Hz at lower resolutions with a 0.03ms GtG response time. Fully optimised for professional workflows and immersive entertainment, it features VESA DisplayHDR True Black 500 certification, 1500 nits peak brightness, and 99.5% DCI-P3 color coverage. The monitor secures high-bandwidth connectivity via a full-speed DisplayPort 2.1 (UHBR20), dual HDMI 2.1 ports, and a USB-C port with 90W Power Delivery.
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Features
39-inch UltraGear™ Evo GX9, World's First 39" 5K2K OLED Gaming Monitor
The OLED Gamers Have Been Waiting for
This 39-inch 5K2K curved OLED gaming monitor delivers the sweet spot of size, speed, and detail. The 21:9 ultrawide display with 143 PPI provides sharp visuals across a wide workspace, while Dual-Mode refresh rates up to 330Hz and 0.03ms response time keep gameplay smooth and responsive. (Requires graphics card that supports up to 330Hz refresh rate support. Actual refresh rates may vary depending on computer graphics specifications and configurations.)
39 Inch curved 5K2K display delivers wide-screen gaming in impeccable detail
VESA DisplayHDR™ True Black 500 delivers deep blacks for stunning dark-scene detail
Dual Mode refresh rate: switch between 5K2K at 165Hz or 330Hz WFHD speed (Requires graphics card that up to 330Hz refresh rate support (QHD). Actual refresh rates may vary depending on computer graphics specifications and configurations. Graphics card available separately.)
Near-instant 0.03ms (GtG) response time helps keep motion sharp in fast gameplay
AI Sound separates voices and effects to highlight footsteps and gameplay cues
AI Scene optimisation detects content and adjusts picture settings automatically
Next-gen ports including DisplayPort 2.1 (Requires graphics card that supports DisplayPort 2.1 to achieve up to 330Hz refresh rate support. Actual refresh rates may vary depending on computer graphics specifications and configurations.) (UHBR20), HDMI 2.1, and USB-C (90W PD)
The World’s First 39" 5K2K OLED Gaming Monitor
This 39-inch 5K2K (5120x2160) UltraGear™ hits the sweet spot of size, resolution, and speed. The wide 21:9 format and 1500R curve expand your field of view, while the dense pixel count delivers crisp detail across every scene in the games you love. (Based on published specifications of OLED gaming monitors as of March 2026.)
AI Upscaling to 5K2K—No GPU Upgrade Required
UltraGear™ evo’s built-in processor uses AI Upscaling to enhance content toward the display’s 5K2K resolution (AI Upscaling requires an input source of at least Wide Full HD resolution. Sources below Wide Full HD are not supported. Upscaling performance may vary depending on source quality). It analyses the source signal to improve detail and clarity—helping games and video look sharper without requiring a GPU upgrade.
Next-Gen Brilliance with 4th Gen RGB Tandem OLED
4th Gen Primary RGB Tandem OLED delivers up to 335 nits typical brightness with improved power efficiency. Its advanced 4-stack RGB structure enhances contrast, sharpens detail, and keeps colour precise across every frame.
UL-Verified for a "Perfect" Visual Experience
Perfect Black: UL-verified Perfect Black delivers true black levels to enhance perceived brightness and contrast, whether it's bright or dark around you.
Perfect colour and 100% colour Fidelity: UL verified to deliver accurate colour expression even under varying lighting conditions, from low light to bright ambient environments.
UL-verified Perfect Reproduction: ensures game content is faithfully rendered on screen, preserving intended colour and detail. (This LG OLED panel has been certified with “Perfect Black”, “Perfect colour with 100% colour Fidelity” and “Perfect Reproduction”. Certificate Number: Perfect Black (OLED)- V183632, Perfect colour V569367 – “Perfect Reproduction” V756760 by UL.)
Perfect Black technology delivers black levels ≤0.24nit up to 500lux
Perfect Colour technology delivers colour consistency levels >99% up to 500lux
Perfect Reproduction technology delivers content coverage >95% up to 500lux
Deeper Detail with VESA DisplayHDR™ True Black 500
VESA DisplayHDR™ True Black 500 reveals rich blacks and nuanced shadow detail—even in dark scenes. Combined with a 1.5M:1 contrast ratio, up to 98.5% (typical) DCI-P3 colour, and Delta E≤2 accuracy, visuals appear vivid, precise, and true to the creator’s intent.
High 143 PPI for Sharp, Detailed Visuals
With a sharp 143 PPI pixel density, in-game text, HUD elements, and fine visual details appear crisp and easy to read. The added clarity also improves everyday tasks like writing, web browsing, and working with text-heavy documents.
Five UL Certifications. One Clear Advantage for Eye Comfort.
This UltraGear™ OLED display is five times UL-certified5—for Discomfort Glare Free, Flicker-Free, Low Blue Light, Reduced Blue Light, and Reduced Circadian Stimulating Blue Light. Combined with a matte anti-glare finish, the display helps reduce distractions, keep your view crisp, and maintain visual comfort—so you can stay focused and perform at your best, even during extended gaming sessions.
More Room to Create with 5K2K Ultrawide
The expansive 21:9 5K2K display with 143 PPI delivers sharp detail across a wide creative workspace. Edit video, retouch photos, and manage timelines on one seamless screen—while keeping documents, research, and multiple windows visible at the same time.
Dual Mode: 5K2K 165Hz for Detail or WFHD 330Hz for Speed
Switch between 5K2K resolution at 165Hz for cinematic AAA titles and Wide Full HD at 330Hz for ultra-responsive competitive gaming. VESA Certified Dual-Mode lets you optimise resolution and refresh rate to match the way you play. (Requires graphics card that up to 330Hz refresh rate support (QHD). Actual refresh rates may vary depending on computer graphics specifications and configurations. Graphics card available separately.)
Near-Instant 0.03ms (GtG) Response Time
With a near-instant 0.03ms (GtG) response time, pixels transition incredibly fast—helping reduce ghosting and keep fast-moving gameplay clear and responsive.
NVIDIA® G-SYNC® Compatible & AMD FreeSync™ Premium Pro
Minimise screen tearing and stuttering with NVIDIA® G-SYNC® compatibility (NVIDIA® G-SYNC® Compatible supports variable refresh rate on GeForce GTX 10 Series and higher GPUs on Display Port, and GeForce RTX 30 Series and higher GPUs on HDMI 2.1.) and AMD FreeSync™ Premium Pro. These adaptive sync technologies help keep gameplay smooth and responsive by matching the monitor’s refresh rate to your GPU—so fast action stays clear with reduced blur and ghosting.
Future-Ready Connectivity for High-Performance Gaming
DisplayPort 2.18 (UHBR20), USB Type-C with 90W power delivery, and HDMI 2.1 provide the connectivity modern gaming setups demand. DP 2.1 delivers the ultra-high bandwidth needed for high-resolution, high-refresh-rate gameplay, while USB-C supports display, data, and charging through a single cable. HDMI 2.1 ensures stable connections with consoles and other devices. (Requires graphics card that supports DisplayPort 2.1 to achieve up to 330Hz refresh rate support. Actual refresh rates may vary depending on computer graphics specifications and configurations.)
AI Sound Enhances Voices and Key Audio Cues
The AI Sound setting analyses on-screen action and separates voices, sound effects, and background audio. AI Sound helps keep team comms clear while highlighting important gameplay cues—like approaching footsteps or nearby action—through speakers or connected headphones.
AI Scene optimisation Adapts to Your Content
The AI Scene optimisation setting detects what’s on screen and automatically adjusts picture settings like colour temperature and sharpness. It helps optimise the display across preset modes such as Office, Animation, Movie, Game, and Sports.
OLED Care Helps Maintain Your Display
OLED Care helps maintain your OLED display’s long-term performance. Built-in maintenance features, including Pixel Cleaning, help keep the OLED panel operating at its best for consistent image quality over time.
OLED Protection: 2-Year Limited Warranty & Panel Care Tools
Rest easy knowing your OLED monitor is built to last. The 2-year limited warranty covers key components, including the OLED panel. And OLED Care tools such as pixel cleaning keep your display sharp, for reliable top-tier performance. Please see Warranty Information on this page for all warranty details.
