LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel
LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel
Price: $195.00
$190.00/ piece
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LM340UW4‑SSA1 LG 34 Inch R1900 Curved WQHD IPS LCD Panel
LM340UW4‑SSA1 LG Curved LCD Screen Back Side 40Pin eDP Connecto
LM340UW4‑SSA1 LG 34 Inch R1900 Curved WQHD IPS LCD Panel
LM340UW4‑SSA1 LG Curved LCD Screen Back Side 40Pin eDP Connecto

LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel

Price: $195.00
$190.00/ piece
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LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel

Product Information Product Specifications
Model:
lm340uw4-ssa1
Brand:
LG
Application:
Industrial
Resolution:
3440(RGB)×1440, 21:9
Brightness:
300 cd/m² (Typ.)
Contrast Ratio:
1000:1 (Typ.) (TM)
Viewing Angle:
89/89/89/89 (Typ.)(CR≥10
Lamp Type:
4 strings × 2CN WLED, 30K hrs
Signal Interface:
eDP (8 Lanes), HBR1 (2.7G/lane) Connector
Panel Type:
a-Si TFT-LCD, LCM
Ordering instructions
Quality:
test ok before ship it
RMA Policy:
RMA 6 month
Sample:
Paid Sample
Stock:
185
Stock Location:
China
Delivery:
WorldWide
Lead Time:
1-3 Days
Weight:
3.500 KG
Overview

LM340UW4‑SSA1 Original LG Display 34 Inch 3440×1440 WQHD R1900 Curved IPS eDP LCD Panel

1. Product Overview

LM340UW4‑SSA1 is an a‑Si TFT‑LCD curved IPS module produced by LG Display, belonging to LM340UW4 series. It features 21:9 ultra‑wide aspect ratio, R1900 curvature, native WQHD 3440×1440 resolution, 100Hz refresh rate, edge‑lit WLED backlight, 8‑lane eDP HBR1 signal interface

Typical brightness 300 cd/m², 1000:1 contrast ratio, 99% sRGB color gamut, anti‑glare AG25% 3H hard‑coating surface. Widely used for Alienware AW3418DW and other brand 34‑inch curved gaming monitors OEM assembly and aftermarket repair, also fits ultra‑wide industrial display projects.

Zylcdshop keeps spot stock for LM340UW4‑SSA1, supports sample evaluation and bulk wholesale, provides original datasheet, pin definition and technical matching support for global buyers.

 2. Full Technical Specifications

ItemParameter
Model NumberLM340UW4‑SSA1
BrandLG Display
Screen Size34 inch
Aspect Ratio21:9
Native Resolution3440 × 1440 (WQHD)
Panel Typea‑Si TFT‑LCD, IPS Normally Black
CurvatureR1900 Curved
Brightness300 cd/m² (Typ.)
Contrast Ratio1000:1 (Typ.)
Color Gamut99% sRGB, 8bit+FRC 16.7M Colors
BacklightEdge‑type WLED, 30000hrs lifetime
InterfaceeDP 8‑lane HBR1, 40 Pins Connector
Refresh Rate100Hz
Response Time14ms G‑to‑G (Typ.)
Viewing Angle89/89/89/89 (CR≥10)
SurfaceAnti‑Glare AG25%, 3H Hard Coating
Active Area797.22 × 333.84 mm
Outline Dimension809.55 × 354.7 ×17.1 mm
Operating Temperature0℃ ~ +50℃
Storage Temperature-20℃ ~ +60℃
ComplianceRoHS compliant

3. Core Advantages of LM340UW4‑SSA1

  1. R1900 Curved 21:9 Ultra‑Wide IPS ExperienceR1900 gentle curvature brings immersive visual effect, 21:9 ultra‑wide screen for gaming, multi‑window office and content creation.

  2. Excellent Color Performance99% sRGB high color gamut, consistent color reproduction at wide viewing angles, suitable for gaming and graphic‑related scenarios.

  3. Anti‑Glare Matte SurfaceAG anti‑glare coating reduces ambient light reflection, perfect for bright‑light gaming room and office environment.

  4. Original LG A+ Grade QualityGenuine LG curved panel, stable optical performance, direct drop‑in replacement for AW3418DW and compatible curved monitors.

  5. Flexible Order & Technical SupportSupport 1pc sample order for monitor repair, competitive bulk‑order price. Supply datasheet and pinout diagram for engineering reference.

 4. Main Application Scenarios

‑ 34‑inch R1900 curved gaming monitor OEM & spare‑part replacement ‑ Alienware AW3418DW monitor screen repair & refurbishment ‑ Ultra‑wide 21:9 desktop display equipment ‑ Multi‑screen splicing, industrial ultra‑wide display terminal ‑ Custom simulation display project

5. Why Source LM340UW4‑SSA1 From Zylcdshop

We are professional distributor for LG, AUO, BOE, Innolux LCD panels.

  1. Spot inventory of LM340UW4‑SSA1, ship within 24 hours after payment

  2. Strict pre‑shipment full‑function testing, 12‑month quality warranty (exclude man‑made damage)

  3. Supply original datasheet, pin assignment and pre‑sales compatibility consultation

  4. Accept small sample & large‑volume bulk orders

  5. Multiple global logistics options and flexible B2B payment terms

 6. FAQ

Q1: What is the difference between LM340UW4‑SSA1 and LM340UW2‑SSA1?A1: They belong to LM340UW series, same resolution and curvature; differences lie in refresh rate, backlight and mechanical dimension. Please confirm exact model before purchasing.

Q2: What interface does LM340UW4‑SSA1 adopt?A2: It uses 8‑lane HBR1 eDP interface, requires matching eDP driver board, cannot work with LVDS solution directly.

Q3: Is LM340UW4‑SSA1 touch screen?A3: Standard version is non‑touch; touch overlay can be added for custom projects.

Q4: Can I order one piece for monitor repair?A4: Yes, 1‑piece sample is available for testing; better unit price for bulk quantity.


If you are searching for original LG LM340UW4‑SSA1 34‑inch 3440×1440 WQHD R1900 curved IPS eDP LCD panel for gaming monitor OEM or repair projects, please contact us for latest wholesale price, datasheet and technical consultation. We also supply other LG LM340UW series curved display modules.

Related Products:Original LG Display

Product Comparison
Model:
Size:
Resolution:
Brightness:
Contrast Ratio:
Viewing Angle:
Lamp Type:
Signal Interface:
Panel Type:
LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel

LM340UW4‑SSA1 LG 34 Inch 3440×1440 Curved IPS eDP LCD Panel

lm340uw4-ssa1

3440(RGB)×1440, 21:9
300 cd/m² (Typ.)
1000:1 (Typ.) (TM)
89/89/89/89 (Typ.)(CR≥10
4 strings × 2CN WLED, 30K hrs
eDP (8 Lanes), HBR1 (2.7G/lane) Connector
a-Si TFT-LCD, LCM
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
lm340uw4-ssa1 is a a-Si TFT-LCD, LCM Display screen Product from LG.According to LG's product specification sheet,lm340uw4-ssa1 display has a resolution of 3440(RGB)×1440, 21:9, Contrast Ratio is 1000:1 (Typ.) (TM),Viewing Angle is 89/89/89/89 (Typ.)(CR≥10,Lamp Type is 4 strings × 2CN WLED, 30K hrs,Signal Interface is eDP (8 Lanes), HBR1 (2.7G/lane) Connector,Brightness is 300 cd/m² (Typ.).Based on its characteristics, this model is recommended for application in Industrial and other products.The weight of lm340uw4-ssa1 after packaging is 3.500KG.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

inventory_2 Incoming
monitor Display Test
visibility Appearance
settings_input_component Interface
view_in_ar Packaging
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  • done_all Every panel is visually inspected, electrically powered-on tested, and interface-verified before packing
  • inventory_2 Anti-static, shock-proof professional packaging for international transit
  • verified What you see is what you get — product consistent with description, or return freight on us

verified_user Verified by Third Parties, Compliant in Your Market

Alibaba Verified Supplier Certificate
CITEO Membership Certificate
Der Grüne Punkt License
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

Industrial Automation

HMI panels & factory control displays for automation integrators

Medical Devices

Auxiliary diagnostic & monitoring displays for medical device makers

POS/ATM

Replacement screens & bulk supply for POS/ATM manufacturers

Marine Electronics

Marine navigation display modules

Repair Market

EOL & obsolete panel sourcing for global repair centers

Embedded / OEM

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.

local_shipping In Stock. Tested. Shipped in 1–3 Days.

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1–3 day lead time for in-stock items; same-day dispatch available in some cases

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Worldwide shipping via express couriers, full tracking from warehouse to door

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Every order follows the same chain: Warehouse → QC → Packaging → Shipping → You

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Transportation damage covered by us — zero risk on your side

What Buyers Say — 4.8/5 from Verified Orders

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local_shipping On Delivery

"My package arrived at the expected date (6 days after the purchase) and in good condition."
— Verified Buyer, Nov 2025

"Fast shipping, good communication, goods as described, will buy again."
— Verified Buyer, Aug 2025

support_agent On Service

"The communication with customer service was very smooth, the logistics speed was also fast, the product was consistent with the description."
— Verified Buyer, Aug 2025

"Fast delivery, competitive price, excellent support."
— Verified Buyer, Aug 2025

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"Good price for things hard to find!"
— Verified Buyer, Aug 2025

"Excellent quality, affordable price, worth recommending."
— Verified Buyer, Nov 2024

Join engineers and buyers from industrial automation, medical and marine industries — get your quotation within 24 hours.

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Comprehensive Score
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J***********t
Sep 14, 2026
(5/5)
Happy with the LM12S401 CSTN display. Exactly the 12.1" Sharp panel we needed to repair our factory control unit. Plugged in and powered up straight away. Fast shipping.
P************k
Nov 10, 2025
(5/5)
My package arrived at the expected date (6 days after the purchase) and in good condition
O***********E
Sep 29, 2025
(5/5)
Very nice and sharp in the choice
L***********A
Sep 12, 2025
(5/5)
ALL AS PLANNED OK
a****k
Aug 28, 2025
(5/5)
Fast delivery, Comptetive price Excellent support
R********a
Aug 25, 2025
(5/5)
Perfect and easy.
R************z
Aug 21, 2025
(5/5)
Fast shipping, good communication, goods as described, will buy again.
G*************i
Aug 15, 2025
(5/5)
Good price for things hard to find!
y****m
Aug 15, 2025
(5/5)
Product arrived earlier than expected. Price was also very reasonable.
H*******e
Aug 12, 2025
(4/5)
The communication with customer service was very smooth, the logistics speed was also fast, the product was consistent with the description, and it was a good shopping experience.
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