45" LG 45GX90SB-B
45" LG 45GX90SB-B
LG UltraGear 45GX90SB-B
45" curved OLED monitor for gaming, work and entertainment
The LG UltraGear 45GX90SB-B features an ultra-wide curved OLED display with a WQHD resolution of 3,440 × 1,440px and a 21:9 aspect ratio. MLA+ technology and the VESA DisplayHDR True Black 400 standard ensure high brightness, strong contrast and detailed colour rendering, even in dark scenes, while UL technologies help to reduce eye fatigue. This smart monitor is powered by a processor with AI functions and thanks to its 240Hz refresh rate and low 0.03ms response time, it provides a smooth, tear-free picture. The LG UltraGear 45GX90SB-B is powered by webOS, which offers a Gaming Hub, LG Channels and other streaming platforms. LG Shield technology helps protect your data and the system from security threats. The monitor has been designed with minimalism in mind, so it takes up minimal space on your desk.
45"
Screen Size
3,440 × 1,440 (WQHD)
Resolution (Resolution Type)
WOLED panel
Display Type
240Hz
Refresh Rate
0.03ms GtG
Response Time
Key Features of the 45" LG UltraGear 45GX90SB-B Monitor
- 800R curvature for a wider field of view and a more immersive gaming experience
- Micro Lens Array+ (MLA+) technology with a peak brightness of up to 1,300 nits
- VESA DisplayHDR True Black 400 and DCI-P3 98.5% colour gamut
- NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro to reduce screen tearing
- UL technologies designed for more comfortable viewing
- LG Gaming Hub with cloud gaming capabilities
- Dynamic Action Sync, Black Stabilizer and Crosshair gaming features for better in-game orientation
- LG Switch application for quick monitor customisation
- LG Shield technology for data and system protection
- webOS 26 smart system with support for streaming and cloud gaming
- AI Picture Pro and AI Sound Pro for image and sound optimisation
- USB-C with up to 65W of power for a connected device
- Height-adjustable stand with tilt and swivel options
- Elegant and minimalist borderless design of the OLED monitor
UltraWide WQHD monitor with a 21:9 aspect ratio
The ultra-wide LG monitor displays content in WQHD quality (3,440 × 1,440px) with a 21:9 aspect ratio, providing up to 34% more desktop space. You'll also appreciate this feature when watching films and series or playing certain games, where the wider field of view allows more content to be displayed on the screen.
OLED display with MLA+ technology and high brightness
Thanks to Micro Lens Array+ (MLA+) technology, the OLED display delivers high brightness, peaking at up to 1,300 nits. This technology optimises light efficiency and minimises light loss. The result is a bright and vivid picture with up to 37.5% higher brightness (SDR) compared to previous LG models with MLA technology.
Curved OLED monitor with 800R for a wider field of view
The LG UltraGear 45GX90SB-B will immerse you with its pronounced 800R curvature, which helps create a wider and more natural field of view. The curved display wraps around part of your field of view, bringing the on-screen action closer, which you'll especially appreciate when gaming and watching widescreen content.
Smart monitor with HDR picture
The VESA DisplayHDR True Black 400 standard ensures detailed black rendering even in dark scenes. With a contrast ratio of 1,500,000:1 and a DCI-P3 98.5% colour gamut, the monitor offers a wide range of colours and strong contrast. LG UltraGear series monitors are also equipped with UL-verified technologies that focus on more comfortable viewing and reducing some of the factors that cause eye fatigue.
- UL Flicker Free – reduces image flicker
- UL Discomfort Glare Free – helps to reduce unpleasant glare
- UL Low Blue Light – reduces the amount of blue light
Alpha 8 AI Gen3 processor for picture and sound optimisation
The smart monitor is powered by the next-generation alpha 8 AI Gen3 processor, which automatically optimises picture and sound performance. The result is consistent clarity and stability across a wide range of content and working environments.
AI Sound Pro
The AI Sound Pro feature adjusts the sound according to the type of content being played, helping to tailor its delivery to the specific situation. AI Surround Sound delivers immersive audio, and Virtual 11.1.2 creates a multi-dimensional sound experience, while AI Object Remastering automatically extracts and separates dialogue, music, and effects, then adjusts them for a clearer and more balanced delivery.
AI Picture Pro
AI Picture Pro technology helps to optimise the display and adapt the picture to different types of content. AI Super Upscaling intelligently analyses individual objects in the scene and then enhances them to ensure higher image quality. Dynamic Tone Mapping Pro provides balanced brightness and precise detail for each individual object.
Monitor with a smooth picture and fast response
With a 240Hz refresh rate and a 0.03ms (GtG) response time, the LG monitor provides a smooth display of fast motion with minimal blur. You will appreciate all these features, especially during competitive online gaming, where a fast reaction to what is happening on the screen matters.
NVIDIA G-SYNC and AMD FreeSync Premium Pro
NVIDIA G-SYNC Compatible and AMD FreeSync Premium Pro technologies contribute to a smoother picture and help to minimise screen tearing and other undesirable effects when gaming.
Smart gaming monitor with webOS and cloud gaming
The smart gaming monitor runs on the webOS system with AI integration, which offers a range of features including free LG Channels and other streaming options. You also get access to cloud gaming without needing a connected PC or games console. Individual games can be controlled using the remote control, which is included in the package.
LG Game Portal
The monitor features the Game Portal gaming platform, which offers a selection of games for gamepads and remote controls and supports personalised gaming. It allows you to track rankings and scores between players and provides access to a wide range of titles, from AAA games to party games. It also includes cloud gaming services such as GeForce NOW and Amazon Luna. Support for Xbox Cloud Gaming is planned for the future and its availability may vary by country, region and specific service.
Gaming features for faster reactions
The gaming monitor is equipped with features that make it easier to orientate yourself in the game and help you react faster to on-screen action:
- Dynamic Action Sync – helps reduce input lag when gaming
- Black Stabilizer – improves the visibility of details in dark scenes
- Crosshair – displays a target point in the centre of the screen
LG Switch
The LG Switch application is used to quickly customise the monitor for gaming and everyday use. It allows you to adjust picture and brightness settings or switch between preset modes using a keyboard shortcut. The desktop can be split into up to 11 different layouts and the application also allows you to quickly launch a video call platform.
LG Shield and certified security
A total of seven key LG Shield technologies help to protect your data. The technologies include secure data storage and management, secure cryptographic algorithms, software integrity, user authentication and access control, secure data transmission, security event detection, and secure updates.
Elegant and minimalist design of the LG UltraGear 45GX90SB-B
The LG UltraGear 45GX90SB-B smart gaming monitor features a borderless design and an adjustable base with swivel, tilt and height adjustment. The slim stand is designed to save space and helps you make efficient use of your desk space.
Connectivity of the LG UltraGear 45GX90SB-B gaming monitor
- 2× HDMI 2.1
- DisplayPort 1.4
- USB Type-C (PD 65W)
- 4-pole headphone output with microphone support
Monitor technical specifications
- Dimensions with stand: 993 × 542–662 × 339 mm (W×H×D)
- Dimensions without stand: 993 × 457 × 218 mm (W×H×D)
- Weight with stand: 13.5kg
- Weight without stand: 8.9kg
- Contrast ratio: 1,500,000:1
- Reading mode
- FPS counter
- Factory-calibrated colours
Package contents
- LG UltraGear 27GX790B-B Monitor
- Stand
- Remote control
- HDMI cable
- Power adapter
- DisplayPort cable
- USB-C cable
- Documentation
Colour gamut
Determines how accurately the monitor can display colours. sRGB is ideal for web, films or games. DCI-P3/Adobe RGB is appreciated by graphic designers or professionals at work. The higher the value, the better the monitor displays colours.
Maximum brightness
The value, given in nits or cd/m², determines the brightness level of the monitor. A brightness of over 400 nits is key for HDR content and readability in sunlight, while standard office monitors are fine with values over 250.
Refresh rate and response time
The refresh rate (Hz) determines the number of frames displayed per second, so the higher the value, the smoother the image and the less eye strain. A lower response time (ms) eliminates motion blur. 144Hz+ is ideal for gaming, while values around 75Hz are suitable for office monitors.Specifications
Display diagonal and resolution
Construction
Panel and screen technology
Aspect Ratio
Backlight and colour
Connection
Colour gamut
Features and functions
Colour
Dimensions and weight
Packaging
Power outlet type
Energy specifications
| Code: | WK060a2c6c3 |
| Warranty: | 24 months |
| Links: | Producer's Website: |
| Manufacturer information |
LG electronics INC. Alfred-Herrhausen-Allee 3-5, 65760 Eschborn, Germany, [email protected], +49 6196 7883000 
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