45-inch UltraGear™ GX9s, OLED Gaming Monitor powered by webOS

45GX90SB-B

UltraGear™ GX9s OLED gaming monitor displaying the webOS interface on a curved screen, set on a desk with stereo speakers.

This image highlights AI Picture Pro, showcasing advanced upscaling technology that enhances every frame with improved clarity, detail, and pixel-level precision.

This image highlights AI Sound Pro, showcasing optimized audio with enhanced clarity and balance for a more immersive and impactful sound experience.

This image highlights LG Shield security system with network encryption, data protection, and multi layer security visualization, emphasizing secure data storage, safe transmission, and award winning smart device security technology.

This image highlights a 45-inch UltraWide WQHD (3440x1440) display in a 21:9 aspect ratio, delivering an immersive gaming experience with a wider field of view.

"Planetary images appear brighter and clearer on LG OLED monitors. "

Knight in black armor with a bird in a medieval hall, highlighting DCI-P3 98.5% and DisplayHDR 400.

This image highlights UL-verified eye comfort technology, showcasing reduced eye strain with flicker-free display, low blue light, and minimized glare for a more comfortable viewing experience.

Motorcycle racing scene displayed on a gaming monitor, illustrating a 240Hz refresh rate for fluid gaming motion.

Racing scene from Assetto Corsa Competizione displayed on a gaming monitor, featuring Adaptive Sync support with NVIDIA G-SYNC and AMD FreeSync Premium for smooth, tear-free gameplay.

This image presents the connectivity options of an LG curved gaming monitor, including USB Type-C™ with PD 65W, DisplayPort 1.4 with DSC, and HDMI™ 2.1 ports, along with a laptop, keyboard, mouse, and headset setup for a versatile gaming and work environment.

Key Features

45-inch WQHD (3440x1440) OLED display
240Hz refresh rate/ 0.03ms (GtG) response time
webOS
AI Picture Pro / AI Sound Pro / LG Shield
NVIDIA® G-SYNC® Compatible / AMD FreeSync™ Premium Pro / VESA Certified AdaptiveSync
Hexagon lighting design with space-saving L stand

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

LG smart gaming monitor feature overview video showing 45 inch WQHD display for immersive gaming, OLED with MLA+ for vivid visuals, eye comfort technology, VESA DisplayHDR™ True Black 400 for deeper contrast, AI Picture Pro visual enhancement, AI Sound Pro immersive audio, alpha 8 AI Processor Gen3 performance, USB C connectivity for productivity, and LG Shield security technology across entertainment and office use scenarios.

The webOS-powered
smart gaming monitor

Introducing the smart gaming monitor, powered by webOS with AI, allowing you to relax during game breaks with effortless streaming¹⁾, including free LG Channels and numerous streaming options. Plus, access high-performance cloud gaming¹⁾ without a separate PC or console, all easily controlled with the remote²⁾ for added convenience.

The video shows a front-facing monitor on a desk, alternating between webOS images and gameplay visuals.

1) Internet connection and subscription to related streaming or cloud gaming services are required. Separate subscriptions or payments may be required, and they are not provided (purchased separately).

2) The remote control is included in the package.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*Supported services may differ by country.

*Applies only to content produced in a 21:9 aspect ratio. For streaming content, platform restrictions may apply.

The alpha 8 AI Processor 4K Gen3 performance visualization with glowing chip and light effects, highlighting high performance processing, AI driven picture and sound optimization, and advanced smart display technology. The alpha 8 AI Processor 4K Gen3 performance visualization with glowing chip and light effects, highlighting high performance processing, AI driven picture and sound optimization, and advanced smart display technology.

Alpha 8 AI Processor Gen3

High-performance processing made for advanced AI engines

The next-generation alpha 8 AI processor Gen3 automatically optimizes picture and audio performance, ensuring consistent clarity and stability across diverse content and work environments.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*This feature is available on webOS only and is supported on models running webOS26 or later.

LG Smart Gaming Monitor showcasing AI Picture Pro visual enhancement with a cinematic scene of a child watching a movie, highlighting improved brightness, contrast, and color detail for a more lifelike and immersive viewing experience.

AI Picture Pro, upscales every frame with pixel precision

Enjoy your LG Smart Monitor without compromising visual quality. AI Super Upscaling intelligently analyzes individual objects within a scene and enhances them to deliver improved picture quality, while Dynamic Tone Mapping Pro ensures balanced brightness and precise detail for each object. AI Picture Pro optimizes overall image quality, creating a clearer, more immersive viewing experience on webOS.

LG Smart Gaming Monitor demonstrating AI Sound Pro with a cinematic concert scene on screen, highlighting immersive audio optimization, clear dialogue, and balanced sound performance for an enhanced home entertainment experience.

AI Sound Pro, fine-tunes your sound for impact

AI Surround Sound delivers immersive, room-filling audio with Virtual 11.1.2 Ch, creating a multi-dimensional sound experience. AI Object Remastering automatically extracts and separates dialogue, music, and effects, then remasters them for enhanced voice clarity and richer musical expression—so every word is heard clearly and each genre stays true to its original intent. Within webOS, AI Sound Pro intelligently balances sound to support a clear and immersive listening experience.

*AI Picture Pro will work with any copyright-protected content on OTT services.

*Image quality of upscaled content will vary based on the source resolution.

*AI Super Upscaling and Dynamic Tone Mapping Pro apply to smart gaming monitor equipped with the α8 processor.

*This feature is available on webOS only and is supported on models running webOS26 or later.

*Feature availability, functions, and the timing of application may vary by country, region, and language.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via USB-C or HDMI) are available. There is no fee to create an LG Account.

LG Smart Gaming Monitor highlighting LG Shield security system with network encryption, data protection, and multi layer security visualization, emphasizing secure data storage, safe transmission, and award winning smart device security technology.

LG Shield,
security you can trust

LG Shield’s 7 core technologies ensure your data stays safe with secure data storage

and management, secure cryptographic algorithms, ensured software integrity, user

authentication and access control, secure data transmission, security event detection

and response, and secure update management.

Discover more about LG Shield

*LG Shield certification may vary depending on model.

*The CES Innovation Awards are based upon descriptive materials submitted to the judges. CTA did not verify the accuracy of any submission or of any claims made and did not test the item to which the award was given.

*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via HDMI) are available. There is no fee to create an LG Account.

The Gaming Portal is now open

The Gaming Portal is a gaming-friendly platform that offers a tailored experience, with options to select menus for gamepads or remote controls and support for personalized gamification. You can track rankings and points among players, while easily accessing a wide range of titles, from AAA to social games. With partnerships with leading cloud gaming services like GeForce NOW, Amazon Luna, and soon Xbox Cloud, along with native webOS app games, it allows gaming without the need for external consoles or devices, delivering the ultimate gaming experience.

A curved monitor showcases a gaming dashboard with vibrant game icons, including action, puzzle, and cloud gaming apps. A cosmic, glowing portal graphic surrounds the screen, enhancing the sci-fi vibe.

*Support for the Gaming Portal may vary by country.

*Support for cloud gaming services and games within Gaming Portal may vary by country.

*Some gaming services may require a subscription and gamepad.

45-inch UltraWide WQHD for immersive gaming

Step into an expansive field of view with a 45-inch WQHD (3440×1440) curved OLED display. With a vertical height similar to that of a 16:9 (2560×1440) display, the 21:9 ultra-wide screen provides a 34% wider workspace for a more immersive viewing experience, delivering deep engagement across a variety of games.

This animated monitor shows the display growing from QHD to WQHD.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

Bright OLED with MLA+

The brilliant OLED features Micro Lens Array+ (MLA+) technology, enhancing brightness (1300nit, peak) and performance by optimizing light efficiency and minimizing light loss. This results in bright and vibrant images with up to 37.5% higher brightness (SDR) compared to our previous models with MLA.

*Among LG OLED gaming monitors with MLA+. SDR brightness is 37.5% higher than our previous models (27GR95QE, 45GR95QE) based on published specifications.

**45GX90SB offers a peak brightness of 1300 nits, measured under internal test conditions. Actual brightness may vary by usage environment.

***Images have been simulated to enhance feature understanding, and may differ from actual use experience.

The ideal curvature 800R
for immersive gaming

Immerse in the 800R curve for a consistent FOV (Field of View) on a desk designed to match natural sight, placing you at the core of its curvature. With a consistent 90-degree viewing angle across the entire screen, it delivers vivid, distortion-free graphics as you explore the gaming universe.

An animated video transitioning from a front view to a top view of a curved monitor.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*The viewing experience may vary depending on the distance from the screen and the user's posture.

Bright highlights and clear detail in the darkness

Experience unparalleled depth and vibrant realism with VESA DisplayHDR true black 400, delivering detailed black expression even in the darkest scenes. With a 1.5M contrast ratio, DCI-P3 98.5% (typical) color gamut ensures that colors are displayed with realistic detail, just as originally intended.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*1.5M:1 is the contrast ratio at 25% APL (Average Picture Level) value which is given as a percentage and refers to the value between the black level and the reference level for white.

Less eye strain
with UL-verified eye comfort tech

LG UltraGear's UL-verified advanced eye comfort technologies minimize frustrating reflections and are designed with visual comfort in mind, delivering crystal-clear gaming performance with consistent clarity. With UL verifications in key areas—reducing screen flicker, minimizing discomfort glare, and limiting harmful blue light exposure—these technologies promote visual comfort and contribute to a smoother gaming experience, whether you’re gaming in bright environments or LED-lit rooms.

UL verifications for Flicker Free, Discomfort Glare Free, and Low Blue Light on UltraGear OLED gaming monitor (45GX90SB).

*All pictures shown are simulated for illustration purpose only.

*LG WOLED has been verified as Flicker-Free, Discomfort Glare Free, and Low Blue Light by UL.

*Certificate Number: Flicker-Free Display (OLED) - A196009, Discomfort Glare Free - V563481 (conditions of UGR less than 22), Low Blue Light Hardware Solution Platinum - V745051.

*The above feature may vary depending on the user’s computing environment or conditions.

Racing game scene of extremely fast rapid 240Hz refresh rate and 0.03ms (GtG) response.

Fluid gaming motion with
240Hz refresh rate

To bring you a rapid 240Hz refresh rate and a swift 0.03ms (GtG) response, reducing reverse ghosting for crystal-clear, fluid visuals. Dive into more immersive gameplay with every frame.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

Smooth motion that keeps you immersed

Minimize tears and lags with NVIDIA® G-SYNC® compatible and AMD FreeSync™ Premium Pro technology. Experience significantly reduced screen tearing and stuttering for smooth visuals with minimized motion blur and ghosting.

UltraGear gaming monitor (45GX90SB) delivers smooth, tear-free racing gameplay with NVIDIA G-SYNC and AMD FreeSync Premium Pro.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*The performance of the feature is compared to the models not applying the sync technology.

*Errors or delays may occur depending on the network connection.

Versatile connectivity for multi‑device setups

Connect your laptop to the monitor with a USB-C cable for up to 65W power delivery, eliminating the need for a separate adapter. Enjoy WQHD resolution and a 240Hz refresh rate via DP 1.4 or HDMI 2.1, ensuring your gaming remains uninterrupted.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

*To work properly, the USB-C cable is required to connect the USB-C port to the monitor.

*It supports up to WQHD@240Hz refresh rate. To work properly, a graphic card that supports DP 1.4 or HDMI 2.1 cable is required.

*The graphics card is NOT included in the package.

*USB-C, DP, and HDMI cables are included in the package.

LG Switch app

Easy to optimize
effortlessly with LG Switch

The LG Switch app helps optimize your monitor for work and everyday use on a PC. Manage windows and smart functions with your keyboard and mouse, switch between PC and webOS with shortcut keys, and arrange apps within a single input using mapped hotkeys.

Download

*Images have been simulated to enhance feature understanding and may differ from actual use experience.

*LG Switch app is a PC-only application.

*Window arrangement and multi-window features are available within a single input via the LG Switch app.

*An LG Account and acceptance of the relevant Terms and Conditions are required to access network-based smart services and features, including streaming apps and webOS features. Without an LG Account, only external device connections (e.g. via HDMI) are available. There is no fee to create an LG Account.

Dynamic Action Sync

Reducing input lag with Dynamic Action Sync, gamers can catch critical moments in real-time and respond quickly.

Black Stabilizer

Black Stabilizer enhances visibility in dark scenes, revealing hidden details and improving clarity for smoother navigation through shadowy environments or sudden light changes.

Crosshair

The target point is fixed in the center to enhance shooting accuracy.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

Sleek and streamlined design for gaming

Experience our space-efficient 4-side virtually borderless design featuring a fully adjustable base with swivel, tilt, and height. A clutter-free slim stand and wide-range swivel adjustment are designed to minimize desk space usage and eliminate dead space efficiently, while adding a sleeker, more refined look to your setup.

4-side virtually

borderless design

Swivel

Tilt

Height

Curved gaming monitor displaying an action-adventure game in a vibrant gaming setup with purple lighting and a PC tower nearby.

*Images have been simulated to enhance feature understanding, and may differ from actual use experience.

2-YEAR WARRANTY

2 years from the date of original retail purchase and internal and functional parts only,

including OLED Display Panel.

*Limited warranty. Terms and conditions may vary by country.

All Spec

INFO

Product name
LG UltraGear
Year
2026

DISPLAY

Aspect Ratio
21:9
Contrast Ratio (Typ.)
1500000:1
Curvature
800R
Brightness (Min.) [cd/m²]
250cd/m²
Brightness (Typ.) [cd/m²]
275cd/m²
Color Bit
10bit
Color Depth (Number of Colors)
1.07B
Color Gamut (Min.)
DCI-P3 94% (CIE1976)
Color Gamut (Typ.)
DCI-P3 98.5% (CIE1976)
Contrast Ratio (Min.)
1200000:1
Surface Treatment
Anti-Glare, Low-Reflection of the front polarizer
Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)
Panel Type
OLED
Pixel Pitch [mm]
0.303 x 0.303mm
Refresh Rate (Max.) [Hz]
240
Resolution
3440 x 1440
Response Time
0.03ms (GtG)
Size [cm]
113
Size [Inch]
44.5

POWER

AC Input
100~240V (50/60Hz)
Type
External Power(Adapter)
DC Output
20V, 13.5A

MECHANICAL

Display Position Adjustments
-1~15º/120mmt/-10~10º
Borderless Design
4-Side Virtually Borderless Design

DIMENSIONS/WEIGHTS

Dimension in Shiping (W x H x D) [mm]
1143 x 301 x 550mm
Dimension with Stand (W x H x D) [mm]
992.7 x 661.7 x 338.6mm(UP) / 992.7 x 541.7 x 338.6mm(Down)
Dimension without Stand (W x H x D) [mm]
992.7 x 457 x 218mm
Weight with Stand [kg]
13.5Kg
Weight without Stand [kg]
8.9Kg
Weight in Shipping [kg]
18.9Kg

ACCESSORY

Adapter
YES
Display Port
YES
HDMI (Color/Length)
Black / 1.8m
Power Cord
YES

CONNECTIVITY

DisplayPort
YES(1ea)
DP Version
1.4 (DSC)
HDMI
YES(2ea)
Headphone out
3-pole (Sound Only)
USB-C (Data Transsmission)
YES
USB-C (Max. Resolution at Hz)
3440x1440@240Hz
USB-C (Power Delivery)
65W
USB Downstream Port
YES(2ea/ver2.0)
USB Upstream Port
YES(via USB-C)

FEATURES

RGB LED Lighting
Hexagon Lighting
Smart Energy Saving
YES
User Defined Key
YES
VESA DisplayHDR™
DisplayHDR™400 TRUE BLACK
VRR
YES
Auto Brightness
YES
PIP
YES
PBP
2PBP
NVIDIA G-Sync™
G-SYNC Compatible
HDR Effect
YES
HDR 10
YES
FPS Counter
YES
Dynamic Action Sync
YES
Crosshair
YES
Color Weakness
YES
Color Calibrated in Factory
YES
Black Stabilizer
YES
AMD FreeSync™
FreeSync Premium Pro

SOUND

Bluetooth Connectivity
YES
Speaker
7W x2

Are OLED gaming monitors worth it?

Yes, many gamers feel that they're absolutely worth it. OLED gaming monitors combine cutting-edge display technology with blazing-fast performance, delivering a viewing experience that’s just as responsive as it is beautiful. With LG, you’re getting more than just OLED. You’re getting displays engineered for gamers, with high refresh rates, adaptive sync, and sleek, immersive designs. For players who take their gaming seriously, OLED isn’t just a luxury—it’s a competitive upgrade.

What is the best LG OLED Gaming Monitor?

The best LG OLED gaming monitor depends on your gaming preferences, including refresh rate, response time, and display resolution.

The LG UltraGear evo GX9 (39GX950B) is our most advanced OLED gaming monitor to date. As the world’s first 39-inch 5K2K curved OLED gaming monitor, it features a 1500R curved ultrawide design and delivers exceptional contrast and clarity with perfect blacks. Its 39-inch ultrawide format offers a balance of immersion and usability. The GX9 supports Dual Mode, allowing gamers to switch to WFHD at up to 330Hz for ultra-fast FPS gameplay or WUHD (5120×2160) at up to 165Hz for visually rich RPG and open-world experiences.It also features AI Upscaling technology that lets you enjoy 5K2K at 165Hz without frame drops, even without a high‑end graphics card. In addition, AI Scene Optimization automatically detects your usage scenario and adjusts the picture settings for optimal image quality.

With LG’s own DQ‑C2 chipset, the monitor is equipped with AI Sound technology that makes sound effects, background music, and voices feel even more realistic.

The monitor supports DisplayPort 2.1 and two HDMI 2.1 ports for flexible, high-performance connectivity.

In addition to the GX9, LG UltraGear also offers high-performance gaming monitors in a range of sizes and display technologies.

For gamers seeking a larger-format experience, the UltraGear evo G9 (52G930B) features the world’s largest 52-inch curved 5K2K ultrawide display with a 240Hz refresh rate, delivering expansive visuals and high-speed performance.

For more detailed guidance on choosing the right UltraGear gaming monitor, visit the Gaming Monitor Buying Guide.

What are the differences among the 3 Modes in the "OLED Screen Move" feature in UltraGear gaming monitors?

The different modes serve to prevent burn-in of the monitors by adjusting the screen little by little (at least 8 pixel units) and is divided into 4 modes depending on the direction and amount of movement.

It moves a set amount and in a set direction every minute, except for 2 minutes at the initial start.

Mode 1 & Mode 3 move in the horizontal and vertical directions and draw a rectangle.

Mode 1 moves longer than Mode 3.

Mode 2 & 4 move once in the upward direction at first, then move diagonally and draw a diamond.

Mode 2 moves longer than Mode 4.

Mode 2 has the greatest movement.

Experience this product around you.