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3.5 Inch Square Industrial LED Backlight Module 2700K-3500K Warm White

Product Specification
Place of Origin: CHINA
Brand Name: Weishibo
Certification: IMQ/ROHS
Model Number: Customizable
Minimum Order Quantity: 500
Price: 0.1-0.5USD
Payment Terms: L/C,D/A,D/P
Supply Ability: 500K per month
Product Details
Highlight:

3.5 Inch LED Backlight

,

2700K LED Backlight

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3500K led back lighting

Name: 3.5 Inch Square Industrial LED Backlight Module
Material: PVC/PMMA
Optical Film: Diffuser Film, Upper And Lower Brightness Enhancement Film (BEF), Reflective Film, Light-shielding Adhesive
LED Bead Packaging: SMD LEDs (0603/0805/2835/3014, Etc.), Edge-lit / Direct Backlight Strips
Light-Emitting Mode: Edge-lit Backlight, Direct-lit Backlight
Color Temperature: Warm White (2700K-3500K), Pure White (4000K-4500K), Cool White (6000K-7000K), Colored Light (Red / Green / Blue / Multicolor)
Brightness: Cd/㎡ (nit), The Standard Brightness Ranges From 300 To 1000 Cd/㎡, And High-brightness Models Can Reach Over 1500 Cd/㎡
Uniformity: ≥80% (industry Standard), High Uniformity Models ≥90%, No Dark Areas, Light Spots Or Shadows
Perspective: Full View, Front View, Narrow View
Emission Color: Monochrome, Two-color, RGB Full-color
Operating Voltage: DC 3V/5V/12V/24V (5V And 12V Are The Most Commonly Used)
Operating Current: Single-channel / Full-board Rated Current (mA/A)
Power: Overall Board Power Consumption (W)
Wiring Method: Pad Routing, FPC Flexible Cable, Terminal Connection, Direct Wire Outlet
Light Guide Process: Screen Printing, Laser Dot Marking And Etching Light Guide
Assembly Structure: Integrated Patch, Split Module, Fixed With Iron Frame / Plastic Frame
Waterproof Rating: IP30 (Standard Indoor), IP54/IP65 (Outdoor / Humid Environments)
Surface Treatment: Matte, High-transparency, Scratch-resistant, Anti-glare
Operating Temperature: -20℃ ~ +60℃ (Standard), Wide Temperature Version: -30℃ ~ +70℃
Storage Temperature: -30℃ ~ +70℃
Service Life: Regular Version: Over 50000H, Highlight Version: Over 30000H
Border: Borderless, Narrow Bezel, Wide Bezel
Light Shielding: Built-in Vinyl Light Blocking And Fully Edged Light Blocking On All Sides
Accessories: Adhesive Tape (3M Adhesive), Double-sided Tape, Fixing Foam, Thermal Pad
Applicable Panels: Compatible With LCD Screens, Segment Code Screens, Dot-matrix Screens And Touch Screens
Panel Type: Light Guide Plate (LGP), Uniform Light Plate, Backlight Module (including Light Guide, Diffusion, Brightness Enhancement And Light Bar)
Product Description

3.5 Inch Square Industrial LED Backlight Module | 600 cd/m² with FPC Connector

 
Product Overview
 
 
This 3.5-inch square industrial-grade LED backlight module is engineered for compact industrial control and instrumentation applications, delivering reliable, uniform illumination for small-format square LCD panels. Featuring an optimized brightness of 600 cd/m², it provides clear, glare-free readability in indoor industrial environments. The FPC (Flexible Printed Circuit) PIN output enables vibration-resistant, space-saving installation, while its precision dimensions (71.62×69.96×3.98mm outer size, 61.86×62.00mm viewing area) ensure seamless compatibility with standard 3.5-inch square industrial LCD panels. Ideal for compact industrial HMI, control panels, process indicators, and small-scale instrumentation systems.
Key Specifications

Diagonal Size: 3.5 Inches (Square Format)

Overall Dimensions: 71.62 × 69.96 × 3.98 mm

Viewing Area (VA): 61.86 × 62.00 mm

Brightness: 600 cd/m² (Optimized for Indoor Industrial Use)

Connection: FPC (Flexible Printed Circuit) PIN Output (Yellow flat cable)

Light Source: Side-Emitting LED with precision-engineered square light guide plate (LGP)

Typical Applications: Compact industrial HMI, control panels, process indicators, small-scale instrumentation, and factory automation sub-displays

 
Core Features & Benefits
 
 
✅ Optimized 600 cd/m² Brightness for Industrial Environments
 
Calibrated to deliver a balanced 600 cd/m² luminance, this backlight ensures crisp, legible readouts without causing eye strain during extended operation in factory and industrial settings. It is perfectly suited for indoor control rooms and equipment enclosures.
✅ Precision Square Dimensional Compatibility
 
Engineered with exact square outer and viewing area dimensions, this module fits standard 3.5-inch square industrial LCD panels without any modifications. This reduces integration costs, shortens production lead times, and simplifies equipment retrofitting.
✅ Vibration-Resistant FPC Connector Design
 
The flexible FPC PIN output provides superior shock and vibration absorption compared to rigid connectors, significantly reducing connection failures in dynamic industrial environments. The compact yellow flat cable allows for flexible routing in space-constrained enclosures.
✅ Robust Industrial-Grade Construction
 
Built with a reinforced frame and mounting tabs, this backlight withstands continuous operation and mechanical stress common in industrial environments. The high-efficiency side-emitting LED design ensures long lifespan, low power consumption, and consistent performance across wide temperature ranges.

✅ Uniform, Flicker-Free Illumination

 

The precision-machined square light guide plate delivers perfectly even light distribution across the entire viewing area, eliminating hotspots and brightness variations. The flicker-free LED driver design also reduces operator eye strain during prolonged monitoring.

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