Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement
Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement
Price: $100.00
$95.00/ piece
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Tianma TM121TDSG04 12.1 inch XGA TFT LCD module front view
Tianma TM121TDSG04 12.1
Tianma TM121TDSG04 12.1 inch XGA TFT LCD module front view
Tianma TM121TDSG04 12.1

Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement

Price: $100.00
$95.00/ piece
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Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement

Product Information Product Specifications
Model:
TM121TDSG04
Brand:
TIANMA
Application:
Industrial
Ordering instructions
Quality:
test ok before ship it
RMA Policy:
RMA 6 month
Sample:
Paid Sample
Stock:
2000
Stock Location:
China
Delivery:
WorldWide
Lead Time:
1-3 Days
Weight:
1.500 KG
Overview

Product Overview

The Tianma TM121TDSG04 is a premium 12.1-inch a-Si TFT-LCD module (LCM) engineered specifically for demanding industrial and medical environments. Delivering a classic XGA resolution of 1024×768 pixels with a standard 4:3 aspect ratio, this display ensures perfect compatibility with legacy and modern control systems. Designed for high reliability and long LED backlight lifespan, it serves as the ideal direct replacement for aging screens in HMI (Human Machine Interface) panels, CNC machines, and medical equipment. At ZYLCDShop, we guarantee authentic Tianma industrial modules with strict quality testing.

Technical Specifications

SpecificationDetails
Model NumberTM121TDSG04
BrandTianma
Screen Size12.1 inches (diagonal)
Panel Typea-Si TFT-LCD, LCM (Liquid Crystal Module)
Resolution1024(RGB) × 768 pixels (XGA)
Aspect Ratio4:3 (Standard Industrial Format)
Display Colors16.7M (Typical via LVDS/RGB Interface)
ApplicationIndustrial HMI, Medical Devices, CNC, Marine/Aviation
ConditionOriginal / New Replacement

Applications

Thanks to its robust build and classic XGA 1024x768 resolution, the Tianma TM121TDSG04 12.1-inch TFT LCD module is widely used as an exact replacement part for:

  • Industrial Automation: HMI (Human Machine Interface) operator panels, PLC control screens, and CNC machine displays.

  • Medical Equipment: Patient monitors, ultrasound machines, and laboratory testing instruments requiring accurate color reproduction.

  • Commercial & Marine: Point of Sale (POS) terminals, marine navigation displays, and aviation instrumentation.

(Note: Please verify your original screen's model number and interface pin definition before purchasing to ensure plug-and-play compatibility.)

Why Buy From ZYLCDShop?

  • Authentic Tianma Modules: We supply 100% genuine Tianma industrial LCM displays, ensuring long-term reliability.

  • Industrial Grade QC: Every TM121TDSG04 module is tested for pixel defects, backlight uniformity, and signal stability.

  • Safe Global Shipping: Professional anti-static and shock-proof packaging ensures your fragile industrial LCD arrives intact.

Frequently Asked Questions (FAQ)

Q: Why is the 1024x768 (XGA) resolution preferred for industrial HMI?

A: The 1024x768 XGA resolution with a 4:3 aspect ratio is the long-standing industry standard for control software and legacy SCADA systems. Using this exact size and resolution prevents UI scaling issues and black borders on your machine's interface.

Q: Is the Tianma TM121TDSG04 suitable for 24/7 continuous operation?

A: Yes, as an industrial-grade LCM, it is designed with high-durability LED backlights capable of extended operational lifespans, making it ideal for factory floors and medical environments requiring 24/7 uptime.

Q: Does this 12.1-inch LCD module include a touch screen?

A: This item is the TFT-LCD LCM (display panel and backlight unit). It does not include the outer touch digitizer glass. If your equipment uses a touch overlay, you can typically transfer your existing touch panel to this new LCD module.

Q: Do you offer B2B wholesale pricing for factory maintenance teams?

A: Absolutely. ZYLCDShop supports industrial clients, system integrators, and repair facilities. Please contact our sales team for volume discounts and long-term supply agreements for the TM121 series

Product Comparison
Model:
Size:
Resolution:
Brightness:
Contrast Ratio:
Viewing Angle:
Lamp Type:
Signal Interface:
Panel Type:
Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement

Tianma TM121TDSG04 12.1 Inch Industrial HMI LCD Screen 1024x768 Replacement

TM121TDSG04

TM121TDSG04 is a Display screen Product from TIANMA.According to TIANMA's product specification sheet,TM121TDSG04 display has a resolution of , Contrast Ratio is ,Viewing Angle is ,Lamp Type is ,Signal Interface is ,Brightness is .Based on its characteristics, this model is recommended for application in Industrial and other products.The weight of TM121TDSG04 after packaging is 1.500KG.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
flight_takeoff Shipment
  • 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.

timer

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

public

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

gpp_good

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

inventory_2 On Hard-to-Find Models & Price

"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
4.8 out of 5
11 Reviews
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4 star
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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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