Nanjing Weishi Bo Electronics Co., Ltd
| Material | PVC/PMMA |
| Waterproof Rating | IP30 (Standard Indoor), IP54/IP65 (Outdoor / Humid Environments) |
| Accessories | Adhesive tape (3M adhesive), double-sided tape, fixing foam, thermal pad |
| Brightness | cd/㎡ (nit), the standard brightness ranges from 300 to 1000 cd/㎡, and high-brightness models can reach over 1500 cd/㎡ |
| Operating current | Single-channel / Full-board Rated Current (mA/A) |
| Light guide process | Screen printing, laser dot marking and etching light guide |
| Wiring method | Pad routing, FPC flexible cable, terminal connection, direct wire outlet |
| Panel Type | Light Guide Plate (LGP), Uniform Light Plate, Backlight Module (including light guide, diffusion, brightness enhancement and light bar) |
| Payment Terms | L/C,D/A,D/P |
| Packaging Details | Blister packaging |
| Operating temperature | -20℃ ~ +60℃ (Standard), Wide temperature version: -30℃ ~ +70℃ |
| Light-emitting mode | Edge-lit backlight, Direct-lit backlight |
| perspective | Full view, front view, narrow view |
| Assembly structure | Integrated patch, split module, fixed with iron frame / plastic frame |
| Applicable Panels | Compatible with LCD screens, segment code screens, dot-matrix screens and touch screens |
| Color temperature | Warm White (2700K-3500K), Pure White (4000K-4500K), Cool White (6000K-7000K), Colored Light (Red / Green / Blue / Multicolor) |
| Power | Overall Board Power Consumption (W) |
| Delivery Time | 15-25 working days |
| Supply Ability | 500K per month |
| LED bead packaging | SMD LEDs (0603/0805/2835/3014, etc.), edge-lit / direct backlight strips |
| Storage temperature | -30℃ ~ +70℃ |
| border | Borderless, narrow bezel, wide bezel |
| light shielding | Built-in vinyl light blocking and fully edged light blocking on all sides |
| Uniformity | ≥80% (industry standard), high uniformity models ≥90%, no dark areas, light spots or shadows |
| Operating Voltage | DC 3V/5V/12V/24V (5V and 12V are the most commonly used) |
| Optical film | Diffuser film, upper and lower brightness enhancement film (BEF), reflective film, light-shielding adhesive |
| Emission Color | Monochrome, two-color, RGB full-color |
| Name | 3.5 Inch Square Industrial LED Backlight Module |
| Surface treatment | Matte, high-transparency, scratch-resistant, anti-glare |
| service life | Regular version: over 50000H, Highlight version: over 30000H |
| Model Number | Customizable |
| Certification | IMQ/ROHS |
| Place of Origin | CHINA |
| Brand Name | Weishibo |
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Product Specification
| Material | PVC/PMMA | Waterproof Rating | IP30 (Standard Indoor), IP54/IP65 (Outdoor / Humid Environments) |
| Accessories | Adhesive tape (3M adhesive), double-sided tape, fixing foam, thermal pad | Brightness | cd/㎡ (nit), the standard brightness ranges from 300 to 1000 cd/㎡, and high-brightness models can reach over 1500 cd/㎡ |
| Operating current | Single-channel / Full-board Rated Current (mA/A) | Light guide process | Screen printing, laser dot marking and etching light guide |
| Wiring method | Pad routing, FPC flexible cable, terminal connection, direct wire outlet | Panel Type | Light Guide Plate (LGP), Uniform Light Plate, Backlight Module (including light guide, diffusion, brightness enhancement and light bar) |
| Payment Terms | L/C,D/A,D/P | Packaging Details | Blister packaging |
| Operating temperature | -20℃ ~ +60℃ (Standard), Wide temperature version: -30℃ ~ +70℃ | Light-emitting mode | Edge-lit backlight, Direct-lit backlight |
| perspective | Full view, front view, narrow view | Assembly structure | Integrated patch, split module, fixed with iron frame / plastic frame |
| Applicable Panels | Compatible with LCD screens, segment code screens, dot-matrix screens and touch screens | Color temperature | Warm White (2700K-3500K), Pure White (4000K-4500K), Cool White (6000K-7000K), Colored Light (Red / Green / Blue / Multicolor) |
| Power | Overall Board Power Consumption (W) | Delivery Time | 15-25 working days |
| Supply Ability | 500K per month | LED bead packaging | SMD LEDs (0603/0805/2835/3014, etc.), edge-lit / direct backlight strips |
| Storage temperature | -30℃ ~ +70℃ | border | Borderless, narrow bezel, wide bezel |
| light shielding | Built-in vinyl light blocking and fully edged light blocking on all sides | Uniformity | ≥80% (industry standard), high uniformity models ≥90%, no dark areas, light spots or shadows |
| Operating Voltage | DC 3V/5V/12V/24V (5V and 12V are the most commonly used) | Optical film | Diffuser film, upper and lower brightness enhancement film (BEF), reflective film, light-shielding adhesive |
| Emission Color | Monochrome, two-color, RGB full-color | Name | 3.5 Inch Square Industrial LED Backlight Module |
| Surface treatment | Matte, high-transparency, scratch-resistant, anti-glare | service life | Regular version: over 50000H, Highlight version: over 30000H |
| Model Number | Customizable | Certification | IMQ/ROHS |
| Place of Origin | CHINA | Brand Name | Weishibo |
| High Light | 3.5 Inch LED Backlight ，2700K LED Backlight ，3500K led back lighting | ||
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.
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
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.
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.
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.
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.
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.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler
Year Established:
2019
Total Annual:
10000000-15000000
Employee Number:
300 people~500 peopl
Ecer Certification：
Verified Supplier
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