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Display Back Shell
  • Display Back Shell

Display Back Shell

A Display Back Shell is a protective housing component designed to shield the rear portion of electronic display panels, typically found in smartphones, tablets, monitors, and other digital devices. Constructed from advanced polymer composites or lightweight metals like 6061-T6 aluminum alloy, these shells provide structural integrity while maintaining minimal weight (typically 15-30 grams for mobile devices). Modern back shells incorporate EMI shielding with attenuation ratings of 30-60 dB across the 1-10 GHz frequency range, thermal management features with thermal conductivity coefficients of 3-5 W/mK, and precision tolerances of ±0.1mm for perfect fitment.
  • Product Details

Comprehensive Guide to Display Back Shell: Features, Applications, and Maintenance

Our Display Back Shell is a high-performance protective back cover designed for smartphones, tablets, monitors, and other electronic devices. Manufactured from advanced polymer composites or lightweight metals like 6061-T6 aluminum alloy, these back shells provide structural integrity while maintaining minimal weight (15–30 g for mobile devices). Modern designs incorporate EMI shielding (30–60 dB attenuation across 1–10 GHz), thermal management (3–5 W/mK conductivity), and precision tolerances (±0.1 mm) to ensure a perfect fit.


Key Material Specifications

  • Polymer Option: High-grade PC-ABS blend with V-0 flame-retardant rating

  • Metal Option: Anodized aluminum with 500–600 HV hardness for superior scratch resistance

  • Lightweight yet durable, optimized for structural integrity and minimal bulk



Key Advantages

  1. Lightweight and Strong
    Constructed from advanced polymer composites or 6061-T6 aluminum alloy, weighing only 15–30 g, with a rigidity improvement of 40–60%. Bending tests show deflection reduced from 2.5 mm to 1.0 mm.

  2. Enhanced Thermal Management
    Incorporates phase-change materials to lower peak temperatures by 8–12°C, with premium models using vapor chamber technology for thermal conductivity up to 10,000 W/mK, preventing overheating and extending component lifespan.

  3. Effective EMI Shielding
    Features multi-layer conductive coatings and Faraday cage structures that provide 30–60 dB EMI attenuation and reduce RF leakage by 85–90% at 2.4GHz and 5GHz, ensuring stable connectivity.

  4. Versatile Applications
    Suitable for consumer electronics (0.5 mm design, ≥75% wireless charging efficiency), industrial displays (IP67/IP69K compliance), automotive displays (UL94 V-0 rating), and medical equipment (silver-ion antimicrobial coating).

  5. Low Maintenance and Durability
    Easy to clean with isopropyl alcohol, featuring DLC coatings with 2,000–3,000 HV hardness and a low friction coefficient. Optional sacrificial coatings offer a 5-year recoat interval for extended wear resistance.

  6. Precision and Customization
    Maintains ±0.1 mm tolerance for a perfect fit with devices, with OEM/ODM support available for tailored solutions in bulk orders, meeting specific industry needs.


Technical Features & Performance


1. Structural Reinforcement

  • Increases device rigidity by 40–60%

  • Three-point bending test shows deflection reduction from 2.5 mm to 1.0 mm under 50N load

  • Ribbed reinforcement pattern enhances impact resistance; deformation<0.3% from="" 1.5="" m="" drop="">

2. Thermal Management

  • Phase-change materials with 150–200 J/g latent heat reduce peak temperatures by 8–12°C

  • Premium models feature vapor chamber technology with thermal conductivity up to 10,000 W/mK

3. EMI Protection

  • Multi-layer shielding combines 1–5 μm conductive coatings with Faraday cage structures

  • Reduces RF leakage by 85–90% at 2.4GHz and 5GHz, critical for WiFi and Bluetooth


Application Scenarios


Mobile Devices

  • 0.5 mm thin-wall molding maintains sub-7 mm device profile

  • MIL-STD-810G compliant protection

  • Ceramic-reinforced shells improve Qi wireless charging efficiency (>75% at 15W)

Industrial Displays

  • Meets IP67/IP69K standards with 500-hour salt spray resistance

  • Operating temperature: -40°C to 85°C

  • Anti-reflective coating: surface reflectance<1% 550="" at="" nm="">

Automotive Displays

  • UL94 V-0 flammability rating, 5% glass fiber reinforcement

  • Dimensional stability from -40°C to 105°C

  • Compliant with ECE R94 for 15G dashboard crash impact

Medical Equipment

  • Silver-ion antimicrobial coating (50–100 ppm) reduces 99.9% MRSA & E. coli (ISO 22196)

  • Withstands 10,000 hospital-grade disinfectant cycles


Maintenance Procedures


Cleaning

  • Use 70% isopropyl alcohol on lint-free microfiber cloths (GSM 300–350)

  • Wiping pressure<5n, avoid="" abrasive="" cleaners="">1 μm particle size

Thermal Maintenance

  • Clean active cooling vents every 500 hours with dry compressed air (<30 psi="">

  • Inspect thermal interface materials (TIM) annually if thermal resistance >0.5°C-cm²/W

Structural Inspection

  • Verify mounting screw torque every 2,000 hours (M2 screws: 0.6–0.8 Nm)

  • Use CMM to check warping; flatness deviation<0.15 mm="">

Storage

  • Maintain 15–25°C, 40–60% RH

  • For long-term storage (>6 months), use VCI packaging (0.5–1.0 mg/cm²) to prevent oxidation


Advanced Protection Techniques

  • Sacrificial coatings (50–75 μm) with 5-year recoat interval for high-wear areas

  • DLC (Diamond-Like Carbon) coatings: 2,000–3,000 HV hardness, friction coefficient<0.1<>

  • Quarterly 4-wire Kelvin testing ensures grounding resistance<0.1>

  • Optical displays: maintain anti-glare performance 60–120 gloss units (ASTM D523, 60°)


Why Choose Our Display Back Shell

  • High-quality materials: polymer or anodized aluminum options

  • Precision engineering: ±0.1 mm tolerances for perfect fit

  • EMI & thermal management: reliable protection for sensitive electronics

  • Multi-sector applications: mobile, industrial, automotive, and medical devices

  • B2B ready: OEM/ODM, customizable solutions, bulk supply




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