Rhagymadrodd
This manual provides essential information for the safe and efficient use of your LG 40U990A-W 40-inch Ultrafine 5K2K WUHD Nano IPS Curved Monitor. Please read this manual thoroughly before operating the product and retain it for future reference.

Ffigur 1: Blaen view of the LG 40U990A-W Ultrafine 5K2K WUHD Monitor.
Gwybodaeth Diogelwch
Always follow these safety precautions to prevent electric shock, fire, or damage to the product:
- Peidiwch ag agor y monitor casing. Cyfeiriwch yr holl waith cynnal a chadw at bersonél gwasanaeth cymwys.
- Peidiwch ag amlygu'r monitor i law na lleithder.
- Sicrhewch awyru priodol o amgylch y monitor.
- Defnyddiwch y cebl pŵer a'r addasydd a gyflenwir gyda'r monitor yn unig.
- Ceisiwch osgoi gosod gwrthrychau trwm ar y llinyn pŵer.
- Datgysylltwch y plwg pŵer yn ystod stormydd mellt a phan na chaiff ei ddefnyddio am gyfnodau hir.
Cynnwys Pecyn
Gwiriwch fod yr holl eitemau yn bresennol yn y blwch:
- LG 40U990A-W Monitor
- Cebl Pŵer
- Cebl HDMI
- Cebl DisplayPort
- Cebl USB-C
Gosod
1. Cynulliad Corfforol
Carefully remove the monitor and stand components from the packaging. Attach the stand base to the stand neck, then secure the assembled stand to the monitor panel. Ensure all screws are tightened securely. Alternatively, the monitor supports VESA mounting for wall or arm installation (mounting hardware sold separately).
2. Cysylltu â Dyfeisiau
The LG 40U990A-W offers versatile connectivity options:
- Thunderbolt 5: Connect compatible devices for high-speed data transfer (up to 80Gbps), 96W power delivery, and 5K2K display output using a single cable. The monitor features two Thunderbolt 5 ports (one in, one out for daisy-chaining).
- HDMI2.1: Use the two HDMI 2.1 ports for connecting various multimedia devices.
- Dangosydd Arddangos 2.1: Connect to devices supporting DisplayPort 2.1 (UHBR 13.5) for high-resolution video.
- USB-C: Four downstream USB-C ports are available for connecting peripherals.
- RJ45 LAN: Ar gyfer cysylltedd rhwydwaith gwifrau.
- Jack Clustffon: Ar gyfer allbwn sain.

Ffigur 2: Cefn view illustrating the monitor's various input and output ports.
Figure 3: Thunderbolt 5 connection providing power, data, and display to a laptop.
3. Cysylltiad Pwer
Connect the power cable to the monitor's power input and then to a wall outlet. Press the power button (usually a joystick on the bottom center) to turn on the monitor.
Gweithredu'r Monitor
1. Basic Controls (On-Screen Display)
The monitor features a joystick button located at the bottom center for navigating the On-Screen Display (OSD) menu. Press the joystick to open the OSD, then move it up/down/left/right to select and adjust settings.
2. Display and Picture Settings
- 5K2K WUHD Resolution: The 5120x2160 resolution provides an expansive workspace.
- Nano IPS Black: This technology delivers deep blacks and vibrant colors with a 2000:1 contrast ratio.
- ArddangosfaHDR 600: Certified for VESA DisplayHDR 600, ensuring dynamic range and vivid highlights.
- DCI-P3 Color Gamut: Offers up to 99% DCI-P3 coverage for accurate and rich color reproduction.
- Cyfradd Adnewyddu 120Hz: Provides smooth visuals, beneficial for fast-paced content and precise workflows.
- Synhwyrydd Golau: The monitor includes an adaptive brightness feature that adjusts screen brightness based on ambient light conditions.
Figure 4: The 5K2K resolution provides ample screen space for detailed work.
Figure 5: DisplayHDR 600 ensures dynamic range and vivid highlights.
3. Nodweddion Uwch
- Cadwyn llygad y dydd: Connect two monitors and a laptop via Thunderbolt 5 and DisplayPort to expand your workspace.
- LG Switch App: Customize your display settings, utilize a personalized picture wizard, and enable smart screen split features. Download the latest version from LG.com.
- Dual Controller: Manage multiple devices with a single keyboard and mouse.
- Built-in KVM: Switch between connected devices seamlessly.
- AMD FreeSync Premiwm Pro: For smooth, tear-free gameplay, ideal for creators who also game.
Figure 6: Daisy chain setup for enhanced multitasking efficiency.
Figure 7: The LG Switch App allows for display customization and smart screen management.
4. Sain
The monitor is equipped with dual speakers and Rich Bass technology for immersive sound.
5. Ergonomeg
The stand allows for various adjustments to optimize your viewing cysur:
- Tilt: Adjust the screen angle from -5° to 20°.
- Uchder: Adjust the screen height by up to 130mm.
- troi: Rotate the screen horizontally by ±20°.
Figure 8: Ergonomic stand adjustments for personalized viewing cysur.
Cynnal a chadw
1. Glanhau'r Sgrin
Sychwch y sgrin yn ysgafn gyda lliain meddal, di-flwff. Ar gyfer marciau ystyfnig, sychwch yn ysgafnampgolchwch y lliain gyda dŵr neu lanhawr sgrin arbenigol. Osgowch ddefnyddio cemegau llym neu ddeunyddiau sgraffiniol.
2. Gofal Cyffredinol
Keep the monitor away from direct sunlight, heat sources, and excessive dust. Do not block ventilation openings. When moving the monitor, handle it carefully to avoid damage.
Datrys problemau
Os byddwch chi'n dod ar draws problemau, cyfeiriwch at yr atebion cyffredin canlynol:
- Dim Arddangosfa: Ensure all cables (power, video) are securely connected. Check if the monitor is powered on and the correct input source is selected.
- Ansawdd Llun Gwael: Adjust resolution and refresh rate settings on your connected device. Check monitor OSD settings for brightness, contrast, and color. Ensure video cables are not damaged.
- Dim Sain: Verify that the audio cable (if used) is connected, and volume levels are adjusted on both the monitor and the connected device. Check the monitor's OSD for audio output settings.
- Connectivity Issues (Thunderbolt 5): Ensure you are using the Thunderbolt 5 cable included with the monitor. Confirm your device supports Thunderbolt 5 or DisplayPort 2.1 for full functionality (96W charging, 5K2K @120Hz).
For further assistance, consult the LG support websafle neu cysylltwch â gwasanaeth cwsmeriaid.
Manylebau
| Maint Sgrin | 40 modfedd |
| Datrysiad | 5120 x 2160 (5K2K WUHD) |
| Math o Banel | Nano IPS Black Curved (2500R) |
| Cyfradd Adnewyddu | 120Hz |
| Cefnogaeth HDR | VESA DisplayHDR 600 |
| Lliw Gamut | Hyd at 99% DCI-P3 |
| Cymhareb Cyferbyniad | 2000:1 (Nano IPS Black) |
| Cysylltedd | Thunderbolt 5 (x2), HDMI 2.1 (x2), DisplayPort 2.1 (x1), USB-C Down (x4), RJ45 LAN, Headphone Out |
| Cyflenwi Pŵer | Up to 96W via Thunderbolt 5 |
| Dimensiynau (WxHxD) | 37.3 x 24.2 x 10.2 modfedd (gyda stondin) |
| Pwysau | 31.1 pwys (gyda stondin) |
| Addasiadau Sefyllfa | Tilt (-5° to 20°), Height (130mm), Swivel (±20°) |
Gwarant a Chefnogaeth
Your LG 40U990A-W monitor is covered by a limited warranty. Please refer to the warranty card included in your product packaging for specific terms and conditions. For technical support, driver downloads, or service inquiries, visit the official LG websafle neu cysylltwch â gwasanaeth cwsmeriaid LG.
Fideo Cynnyrch Swyddogol:
Fideo 1: Dros benview of the LG 40U990A-W UltraFine Monitor, highlighting its key features and benefits for professional use.