LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin
LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin
Price: $195.00
$190.00/ piece
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LG LM340UW4‑SSA1 34 inch 3440×1440 UW‑QHD curved 21:9 IPS LCD module eDP 60pin for AW3418DW gaming monitor replacement
LG LM340UW4‑SSA1 34 inch 3440×1440 UW‑QHD curved 21:9 IPS LCD module eDP 60pin for AW3418DW gaming monitor replacement

LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin

Price: $195.00
$190.00/ piece
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LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin

Product Information Product Specifications
Model:
lm340uw4-ssa1
Brand:
LG
Application:
Industrial
Resolution:
3440×1440
Brightness:
300
Contrast Ratio:
1000:
Viewing Angle:
89/89/89/89
Ordering instructions
Quality:
test ok before ship it
RMA Policy:
RMA 6 month
Sample:
Paid Sample
Stock:
303
Stock Location:
China
Delivery:
WorldWide
Lead Time:
1-3 Days
Weight:
5.500 KG
Overview
LM340UW4‑SSA1 LG Display 34 Inch 3440(RGB)×1440 UW‑QHD Curved 21:9 IPS a‑Si TFT‑LCD LCM Module eDP 60Pin

 1. Product Overview

The LM340UW4‑SSA1 is original LG Display 34‑inch curved 21:9 ultra‑wide IPS TFT‑LCD complete LCM module with native 3440(RGB)×1440 UW‑QHD resolution.This is a curved gaming‑grade display module with integrated edge‑type WLED backlight system, AG25 anti‑glare 3H hard‑coated polarizer, symmetrical 89° four‑direction wide viewing angle, native 100Hz refresh rate. It is famous as original panel for Alienware AW3418DW curved gaming monitor, widely used for gaming monitor screen replacement, ultra‑wide monitor assembly and high‑end multi‑task commercial display projects.Zylcdshop supplies Grade A original LM340UW4‑SSA1 modules. Every unit passes pixel defect, brightness and aging inspection before shipment. We support sample trial and bulk factory orders, worldwide shipping, and provide datasheet, pin‑out definition for engineering development.

 2. Full Technical Specification Table

CategoryDetailed Parameter
Full ModelLM340UW4‑SSA1
ManufacturerLG Display
Diagonal Size34 Inch, Curved 21:9 Landscape
Native Resolution3440(W) × 1440(H) UW‑QHD, 109 PPI
Display Technologya‑Si TFT‑IPS, Transmissive Normally Black, Curved
Pixel ArrangementRGB Vertical Stripe
Typical Brightness300 cd/m²
Static Contrast Ratio1000:1 Typical
Viewing Angle (CR≥10)Left/Right/Up/Down: 89° / 89° / 89° / 89° Symmetrical
Color Performance8‑bit + Hi‑FRC, 1.07B Colors, 100% sRGB
G‑to‑G Response Time14ms Typical
Refresh Rate100Hz Native
Surface TreatmentAG25 Anti‑Glare Matte, 3H Hard Scratch Coating
Backlight ConfigurationEdge WLED (4Strings ×2CN), Complete LCM, NO onboard constant‑current driver IC, 30000hrs half‑brightness lifespan
Signal InterfaceeDP 4‑Lanes, 60‑Pin FPC Connector
Logic Supply VoltageDC 10.0V Typical
Active Area799.8(W) × 334.8(H) mm
Outline Dimension809.55(W) × 354.7(H) ×17.1(D) mm
Net Weight4.35 Kg Typical
Operating Temperature0℃ ~ +50℃
Storage Temperature-20℃ ~ +60℃
Humidity Range10%‑90% RH Non‑Condensing
Touch FunctionBare LCD Module, No Built‑in Touch (Support optical bonding service)
Compliance StandardRoHS
Compatible MonitorAlienware AW3418DW
Stock StatusIn Stock, Lead Time 1‑3 Working Days
Warranty Policy6 Months RMA Support

3. Compatibility & Replacement Note

LM340UW4‑SSA1 adopts 4‑lane eDP 60‑pin interface; it requires matching eDP driver board, external WLED constant‑current board for backlight brightness adjustment.It is original OEM panel for Alienware AW3418DW curved gaming monitor. When replacing broken screen, please verify eDP timing, pin‑definition, power sequence and mechanical curved mounting dimension before installation.We provide optional capacitive touch optical bonding service for custom ultra‑wide touch display projects. Datasheet and pin‑out diagram available upon request.

4. Core Product Advantages

  1. LG curved IPS ultra‑wide 21:9 gaming grade panel, symmetrical 89° full viewing angle, minimal color shift for gaming and multi‑window multitasking

  2. UW‑QHD 3440×1440 high resolution, 100% sRGB wide color gamut, great performance for game, video editing and office multi‑screen split display

  3. 100Hz native refresh rate, smooth motion playback for gaming and fast‑moving video content

  4. AG25 matte anti‑glare 3H hard‑coated polarizer, effectively reduce ambient light reflection for desktop gaming environment

  5. Edge‑lit WLED backlight, low power consumption, long service life

  6. Original OEM panel for Alienware AW3418DW, perfect mechanical matching for this monitor chassis

  7. Grade A original module, strict dead‑pixel, bright‑spot, mura and curved surface inspection before packing

  8. Sufficient spot inventory, support small sample trial and large‑volume factory wholesale with competitive price

  9. RoHS compliant, meet global consumer‑electronic environmental requirements

  10. Supply datasheet, pin assignment and driving reference for engineering development

 5. Typical Application Scenarios

  • Broken Alienware AW3418DW curved gaming monitor screen replacement & repair

  • 34‑inch 21:9 ultra‑wide curved gaming monitor assembly spare module

  • High‑end multi‑task office ultra‑wide display

  • Video editing & graphic design wide‑format display terminal

  • Indoor commercial ultra‑wide landscape digital signage

  • Compatible replacement for LG LM340UW4 series 34‑inch curved IPS LCD modules

6. Frequently Asked Questions

Q1: Does LM340UW4‑SSA1 need separate WLED driver board?

A1: Yes. This LCM has no onboard backlight constant‑current IC. External WLED driver board is required for brightness adjustment.

Q2: What signal interface does this LG curved panel use?

A2: 4‑lane eDP 60‑pin connector. LVDS driver board cannot drive this panel. Must use compatible eDP controller board.

Q3: Is LM340UW4‑SSA1 the original panel for AW3418DW?

A3: Yes, it is the original OEM curved IPS panel for Alienware AW3418DW gaming monitor. Please double‑check mechanical dimension before replacement.

Q4: What is native refresh rate?

A4: Native 100Hz, support 100Hz high‑speed display for gaming scenes.

Q5: Can I order sample unit?

A5: Yes, sample and bulk orders are acceptable. Contact us for quotation and request datasheet & pin‑out documents.


Related Products:

LG Display LCD PanelsMonitor Panels

Product Comparison
Model:
Size:
Resolution:
Brightness:
Contrast Ratio:
Viewing Angle:
Lamp Type:
Signal Interface:
Panel Type:
LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin

LM340UW4‑SSA1 LG 34" UW‑QHD IPS LCD Module 3440×1440 eDP 60Pin

lm340uw4-ssa1

3440×1440
300
1000:
89/89/89/89
LM340UW6-SSC1 LG Display 34 inch 3440*1440 tft lcd module

LM340UW6-SSC1 LG Display 34 inch 3440*1440 tft lcd module

LM340UW6-SSC1

3440(RGB)×1440, 21:9
450 cd/m² (Typ.)
1000:1 (Typ.) (TM)
89/89/89/89 (Typ.)(CR≥10)
WLED, 30K hrs, Without Driver
eDP (8 Lanes), HBR2 (5.4G/lane), 60 pins Connector
a-Si TFT-LCD, LCM
LM340UW6-SSA3 LG Display 34 inch  3440(RGB)×1440  tft display

LM340UW6-SSA3 LG Display 34 inch 3440(RGB)×1440 tft display

LM340UW6-SSA3

3440*1440
400
1000:1
89/89/89/89
WLED
60 pins
a-Si TFT-LCD, LCM
LM340UW6-SSA2  LG Display  34 inch lcd display screens

LM340UW6-SSA2 LG Display 34 inch lcd display screens

LM340UW6-SSA2

3440*1440
400
1000:1
89/89/89/89
WLED
60 pins
a-Si TFT-LCD, LCM
lm340uw4-ssa1 is a Display screen Product from LG.According to LG's product specification sheet,lm340uw4-ssa1 display has a resolution of 3440×1440, Contrast Ratio is 1000:,Viewing Angle is 89/89/89/89,Lamp Type is ,Signal Interface is ,Brightness is 300.Based on its characteristics, this model is recommended for application in Industrial and other products.The weight of lm340uw4-ssa1 after packaging is 5.500KG.We have made every effort to minimize weighing variances; however, we cannot guarantee absolute accuracy.
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Original Factory-Sealed Panels

Every unit is sourced directly from AUO Optronics through Zhiyan's first-hand supply channel. No refurbished, no B-grade. Factory seal intact.

100% Original | Factory Sealed
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100% Pre-Ship Testing & 6-Month RMA

Each panel passes through our six-step quality chain—incoming, display, appearance, interface, packaging, and tracking. Backed by a 6-month RMA.

Test OK Before Ship | RMA 6 Months
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99 Units In Stock · Ships in 1–3 Days

Stocked in our Shenzhen Longhua warehouse. Standard lead time 1–3 business days; quotations returned within 24 hours.

99 In Stock | Lead Time 1-3 Days
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Worldwide Shipping with Full Tracking

DHL, FedEx, UPS and TNT available. ESD-safe packaging. Typical door-to-door delivery: 5–7 business days globally.

DHL · FedEx · UPS · TNT | Worldwide

Quality issue? Return freight is on us. Damaged in transit? We cover it in full.

Why 1,000+ Engineers Trust Zhiyan Since 2013

factory 18 Years of Industrial LCD Supply Chain Expertise

  • warehouse 30,000+ m² ready-to-ship warehouse with tens of millions of dollars of LCD inventory on hand
  • category 100,000+ LCD models covered — from mainstream panels to discontinued & hard-to-find EOL models
  • groups 200+ staff, including a dedicated engineering team of 10+ for pre-sales matching and after-sales support
  • handshake Direct factory sourcing from Kyocera, KOE, and NANYA; long-standing supply partnerships across Taiwan and South Korea
  • sync One-stop service: sourcing → evaluation → testing → packaging → global logistics → technical support

fact_check 6-Step Inspection — No Panel Ships Untested

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  • done_all Every panel is visually inspected, electrically powered-on tested, and interface-verified before packing
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  • verified What you see is what you get — product consistent with description, or return freight on us

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LUCID Registration Certificate
  • check TÜV Rheinland On-Site Verified Supplier (Alibaba.com Verified Supplier, Cert. No. 139632585_T) — factory audit covering production capacity, quality assurance & R&D
  • check EU Authorized Representative (EC REP) appointed — EUREPSTAR GmbH, Germany, valid 2025–2027, CE technical files maintained
  • check CITEO Registered (France, packaging EPR compliance, ID: FR293377_01SEXD)
  • check Der Grüne Punkt Licensed (Germany, VerpackG packaging compliance, Reg. No. DE4833497804557)
  • check All panels RoHS 2.0 compliant, lead-free, mercury-free WLED backlight
  • check Registered company: Shenzhen Zhiyan Optoelectronics Co., Ltd. — VAT/Reg. No. 91440300MA5GQNC36C

precision_manufacturing Trusted Across 13+ Industries Worldwide

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Replacement screens & bulk supply for POS/ATM manufacturers

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Custom display solutions: touch bonding, brightness, cables, OEM labeling

Send us your LCD model number, application and quantity — our engineers will recommend a compatible solution within 24 hours.

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Transportation damage covered by us — zero risk on your side

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