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LG34U640B Menu Photo & Video Television Audio GPS Computers Printers Luggage Home & Garden LG 34U640B 34-Inch UltraWide WQHD (3440 x 1440) Curved Monitor, Black Catalog #: LG34U640B
MFG Part #: 34U640B
Condition: Brand new, USA Warranty
21:9 UltraWide Replaces a Dual-Monitor Setup4000:1 VA Contrast Delivers Depth IPS Can't MatchUSB-C Single-Cable Docking144Hz + FreeSync Premium for Real Gaming99% DCI-P3 for Professional Color WorkDual Controller KVM PRODUCT INFORMATION LG 34U640B 34-Inch UltraWide WQHD (3440 × 1440) Curved Monitor, Black Product Description: The LG 34U640B-B is a 34-inch curved UltraWide monitor that combines a spacious 3440 × 1440 WQHD resolution, a fast 144Hz refresh rate, and USB-C single-cable connectivity with 65W laptop charging — creating a versatile workstation display that's equally capable of powering productive multi-app workflows, delivering vivid color-accurate creative work, and providing smooth, immersive gaming from one sleek, narrow-bezel panel. The 21:9 UltraWide WQHD resolution gives you 33% more horizontal screen real estate than a standard 16:9 QHD monitor, letting you comfortably arrange three application windows side by side — a code editor alongside a browser and terminal, a timeline with preview and bins in video editing, or a spreadsheet next to email and chat — without the bezels and alignment hassle of a dual-monitor setup. The subtle 1800R curvature wraps the expansive 34-inch display gently toward your peripheral vision, keeping the edges of the screen equidistant from your eyes for a more natural, comfortable viewing experience that reduces eye strain during long work sessions. The VA panel delivers a rich 4000:1 static contrast ratio — four times deeper than typical IPS panels — producing inky blacks, bright whites, and exceptional shadow detail that makes movies, photos, and dark-themed interfaces look dramatically more vivid. Color performance is impressive: 99% sRGB and 99% DCI-P3 coverage with 1.07 billion displayable colors (10-bit via FRC) ensure accurate, vibrant reproduction across professional workflows, photo editing, and everyday media consumption. HDR10 support adds expanded brightness and contrast range for compatible content. The 144Hz refresh rate paired with a 5ms gray-to-gray response time transforms this from a productivity monitor into a capable gaming display. AMD FreeSync Premium synchronizes the panel's refresh rate with compatible AMD and NVIDIA graphics cards, eliminating screen tearing, stuttering, and input lag during fast-paced gameplay. The combination of ultrawide field of view, smooth 144Hz motion, and the immersive 1800R curve creates a gaming experience that flat 16:9 monitors simply cannot replicate. USB Type-C connectivity is the standout convenience feature. A single USB-C cable delivers display signal (DP Alt Mode), data transfer to the monitor's USB hub, and up to 65W of Power Delivery laptop charging — meaning you plug one cable into your laptop and get a fully connected, fully charging workstation instantly. The built-in Dual Controller (KVM) feature lets you control two connected PCs with a single keyboard and mouse, switching between them and even dragging files across systems — ideal for users who work between a desktop and laptop or personal and work machines. Additional connectivity includes two HDMI 2.0 inputs, one DisplayPort 1.4 input, two USB downstream ports (hub), and a 3.5mm headphone jack. The tilt-adjustable (-5° to +15°) and height-adjustable (80mm) stand provides ergonomic flexibility, and VESA 100 × 100mm compatibility supports wall mounts and monitor arms. Reader Mode reduces blue light for comfortable extended reading, and Flicker Safe technology eliminates on-screen flicker to reduce eye fatigue. LG's On-Screen Control software and Split Screen utility provide easy access to picture presets and multitasking window layouts. Product Features: - 34″ UltraWide WQHD (3440 × 1440) – 21:9 aspect ratio with 33% more horizontal space than 16:9 QHD for true side-by-side multitasking
- 1800R Curved VA Panel – Immersive curvature with 4000:1 contrast for deep blacks and exceptional shadow detail
- 144Hz Refresh Rate + 5ms GtG – Smooth, responsive visuals for gaming, streaming, and fast-paced content
- AMD FreeSync Premium – Tear-free, low-latency gaming with compatible AMD and NVIDIA GPUs
- 99% sRGB + 99% DCI-P3 Color Coverage – Accurate, vibrant color for professional creative work and media
- 1.07 Billion Colors (10-bit) – Smooth gradients and banding-free tonal transitions
- HDR10 – Expanded contrast and brightness range for supported content
- USB-C with 65W Power Delivery – Single-cable display, data, and laptop charging via DP Alt Mode
- Dual Controller (KVM) – Control two PCs with one keyboard and mouse; drag-and-drop files across systems
- 2× HDMI 2.0 + DisplayPort 1.4 – Connect up to three video sources simultaneously
- USB Hub (2× Downstream) – Connect peripherals through the monitor
- Tilt + Height Adjustable Stand – -5°/+15° tilt, 80mm height adjustment for ergonomic positioning
- VESA 100 × 100mm – Compatible with wall mounts and monitor arms
- Reader Mode + Flicker Safe – Blue light reduction and flicker-free technology for all-day comfort
- On-Screen Control + Split Screen – LG software for easy presets and multitasking layouts
- Virtually Borderless Design – Slim bezels maximize screen area and minimize distraction
Product Size34 inchesPanel TypeVACurvature1800RResolution3440 × 1440 (UWQHD / WQHD)Aspect Ratio21:9Refresh Rate144HzResponse Time5ms (Gray-to-Gray)Brightness300 cd/m²Contrast Ratio4000:1 (Static)Color Depth1.07 Billion Colors (8-bit + FRC)Color Gamut99% sRGB, 99% DCI-P3HDRHDR10Viewing Angles178° H / 178° VAdaptive SyncAMD FreeSync PremiumUSB-CYes (DP Alt Mode + 65W PD + Data)HDMI2× HDMI 2.0DisplayPort1× DisplayPort 1.4USB Hub2× USB DownstreamAudio Output3.5mm Headphone JackBuilt-In SpeakersNoKVM / Dual ControllerYes (control 2 PCs, drag-and-drop files)Eye CareReader Mode, Flicker SafeSoftwareOn-Screen Control, Split ScreenStand AdjustmentsTilt (-5° to +15°), Height (80mm)VESA Mount100 × 100mmBezel DesignVirtually BorderlessDimensions (without stand, W × H × D) 31.8″ × 14.3″ × 5.5″ (809 × 362 × 139mm)Dimensions (with stand, W × H × D)~31.8″ × 18.7″ × 9.0″Weight (without stand)12.3 lbs (5.6 kg)Weight (with stand)17.0 lbs (7.7 kg)ColorBlackUse CaseProductivity, content creation, photo/video editing, gaming, multi-app workflows, single-cable laptop docking IN THE BOX - LG 34U640B-B 34" UltraWide Curved Monitor (Black)Stand (base + neck)HDMI CableDisplayPort CableUSB-C CablePower Cord / AdapterQuick Setup Guide
Terms & Conditions Shipping & Handling Policy Please note that - depending on your geographic location - not all methods are available. Make sure to select the appropriate method referring to the table below which indicates the cheapest available shipping method for your location.
Your address Cheapest shipping method Continental US Physical Addresses Standard Flat Rate Shipping Service Note: Usually ships free* via Fedex thus this option is not available to PO Box addresses Continental US PO Box Expedited Flat Rate Shipping Service Note: Will ship out via USPS Parcel Post APO / FPO Military Addresses Overnight Flat Rate Shipping Service Note: Will ship out via USPS Parcel Post, shipping time is not guaranteed Alaska, Hawaii, Puerto Rico Overnight Flat Rate Shipping Service Note: Usually ships via Fedex Express, shipping time is not guaranteed *NOTE: Free shipping is only available to any physical address (not a PO Box) that is located in the lower 48 states. Shipping charges will apply if your address does not meet this criteria. Failure to select the appropriate method will result in order processing delays as we await the payment of the additional shipping charge due. Our billing department will attempt to contact you to process the payment and ship your order. If payment is not made within 5 days after your order was placed, we will cancel and refund the transaction.
* Sellers are not responsible for service transit time. This information is provided by the carrier and excludes weekends and holidays. Note that transit times may vary, particularly during peak periods. International customers - Please note that we are not the party collecting the shipping & handling nor the import charges (duties and taxes) FAQ How Long Does It Generally Take To Process An Order?
It takes one to two business days for us to process an order (prior to shipping it). Once the order has shipped, your estimated time of arrival will be determined by your selected shipping method and your local FedEx guidelines for delivery.What Should I Do If An Item Is Missing From My Order?
First, verify that you've received a box for each tracking number associated with your order. If all boxes have been delivered but you're still missing an item, check the packing material for small items. Do All Of The Products You Sell Carry A Warranty?
All merchandise is brand new, factory fresh and includes the manufacturer's USA warranty unless clearly stated otherwise. Items in Certified Refurbished condition include a 2-year extended warranty backed by All-state. Items in seller refurbished condition are backed at minimum by a 90 day warranty. Items in Used or Open-box condition sold at closeout prices are sold as-is and do not always include a warranty.Can The Signature On My Package Be Waived?
We apologize, but for security purposes, we cannot waive the signature on a package. You can make arrangements to pick up a package from the shipping terminal. Payment, Returns & Checkout Information - Return Policy
You may return merchandise purchased from Buydig for a refund or a replacement, provided that the procedures and requirements referred to in our return policy are followed. All product returns require a return authorization number (RA). A RA number must be issued within 30 calendar days after the date of purchase; it will be valid for 14 calendar days after it is issued.
Removal or alteration of a product's upc number, serial number or upc/serial number sticker will automatically void your Buydig Return Policy. Products that are returned to Buydig with a missing, damaged or altered serial number will be refused RMA service and returned to you.
- Refunds
Refunds are applied to the payment method used at the time of purchase 2-5 days after receipt of the returned merchandise.
- Exchanges
If you purchased a product from Buydig that you wish to exchange for an alternative, you can return the item for a refund and simply place a new order for the item you desire. We do not apply a refund credit to your new purchase
- Defective Item
An item that was discovered to be defective upon receipt can be replaced with the same model only. You may also return a defective item for a refund.
- Damaged Items
All Packages are inspected for damage before they ship from our warehouse. If your package has been damaged in transit, please contact us immediately. We must be informed of all shipping related claims within 1 business day after the date of receipt. We do not issue refunds for returns of damaged merchandise. An item that was discovered damaged upon receipt will be replaced with the same model only.
- International Customers
Please be advised that our products are intended for a US market. If it is to be used outside of the US, please check in advance that it will work. Returns on international orders require the customer pay the return shipping.
If an item you received is defective, we will certainly replace the item with a new one. We will ship the replacement product to you at our cost, and use every good measure to ensure that the replacement order is processed quickly.
- Replacement
We will send a product replacement after the authorized return has completed our receiving/inspection process. The replacement will ship within four business days following our receipt of your return. Please allow additional processing time after Holidays. Although it is our goal to ship a replacement as quickly as possible, we do not send replacements before we receive and inspect the returned merchandise.
To receive a replacement more quickly, you may place a new order for the same item, and we will issue a refund for the full value of the returned product upon completion of our return process.
- Returning Items
If you do not have the return form, we will provide it together with your RA number. Please fill in the requested information on our product return form, and carefully follow the instructions for return.
All returned merchandise must be in original condition, and must include the original factory box (UPC bar codes and serial numbers must be intact) and factory packaging (e.g. foam, plastic, wrappings, etc.), peripherals (e.g. battery, charger, cords, straps, etc.), included warranty cards (without markings), and all instruction booklets and paperwork. The RA number or any other inscriptions must not be written or printed on the product box or packaging. We will not process the return if any of these conditions are not followed.
Retuned merchandise that is lost or damaged during transit is solely the shipper's responsibility. It is important save the tracking information and to properly insure all merchandise being returned to Buydig.
- Television Returns
Buyers Remorse for TVs in Brand New condition:
If you are not 100% satisfied with your TV purchase, you may return it within 30 days from delivery for a full refund, less return shipping fees. Please note that a 15% restocking fee may apply. All returned TVs must be in their original box and include all packing material, manuals, and accessories.
Damages: Were here to help!
For Common Deliveries (FedEx, UPS):
Please inspect the TV and report any damages (e.g. cracked screen, scratches, dents, etc.) within 2 days by contacting us at 1.800.617.4686
For Special Handling/Freight deliveries:
Please open and inspect the TV prior to signing for it. If the TV is cracked or damaged, please refuse delivery and contact us immediately at 1.800.617.4686.
Please note damage claims will be denied for the following:
TVs with over 60 minutes of recorded usage
TVs that have been moved from the original delivery address
All damage claims must be made within two (2) days of delivery. We will issue a refund and cover all shipping costs.
- International Returns
The customer is responsible for paying for return shipping should they decide to return the product.
- Return Exception
Every item we sell is BRAND NEW and under manufacturer's warranty, unless clearly stated otherwise. Although we have a very flexible return policy on most of the items we sell, due to manufacturer restrictions, there are certain items on which we cannot accept returns. The manufacturer will generally repair or replace the item so long as it is under warranty.
Restricted products include: - A/V Furniture
- Apple iPods
- Consumables, including but not limited to, recordable media, film, tapes, batteries, paper, and ink
- Drones - All defects can be handled under the manufacturer's warranty. For DJI brand drones, call DJI at 818-235-0789 and obtain a case number for the defect prior to requesting an RMA. Please note only Dead on Arrival units out of the box will be returnable to us (with a valid case number). DJI will NOT authorize any returns to us if there are any signs of use like dirt, grass stains, nicks or any signs of use. For these situations, the Return Authorization would need to be handled directly between the customer & DJI
- Mattresses
- Mobile Phones
- Opened Software
- Personal Body Massagers
- Opened packages of Apparel, Bedding or Linens
- Used Cookware
- BBQ Grills
- Shavers
- Special order items
- Resellers & Bulk Orders Policy
Buydig does not ship to resellers and reserves the right to limit quantities and orders to all customers. Copyright 2026 BuyDig. All Rights Reserved  |
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