System Overview

The Fiber‑Optic Display Core is the primary optical engine of the FOS‑WDP‑S1 Smart Wall Display Panel. It distributes light from high‑brightness RGB LED or laser injection modules through a dense micro‑fibre optical matrix embedded in an index‑matched resin, producing a uniform, high‑resolution illuminated display surface.

Positioned beneath the capacitive touch layer and above the intermediate structural plate, the display core forms the central optical component of the entire system.

• Uniform light distribution
• High optical efficiency
• Excellent colour reproduction
• Low optical loss
• High mechanical stability
• Long‑term UV resistance
• Low yellowing and shrinkage
• Passive thermal compatibility

Global Dimensions

• Core Width: 2000 mm
• Core Height: 1200 mm
• Core Thickness: 10.0 mm
• Display Coverage: Full active display area
• Construction: Solid laminated optical core

Core Materials

Optical Fibre Matrix

• Material: PMMA / Glass Micro‑Fibres
• Configuration: Uniform micro‑fibre grid
• Arrangement: Continuous full‑panel matrix
• Purpose: Transport light uniformly across the display surface

Optical Resin

• Material: Index‑matched optical resin
• UV stable, low yellowing, low shrinkage
• High optical clarity
• Bubble‑free casting
• Function: Encapsulates fibre matrix while maintaining efficient transmission

Display Core Structure

• Front Surface: Precision polished optical finish
• Internal Structure: Embedded micro‑fibre array
• Rear Surface: Structural bonding interface
• Layer Thickness: 10.0 mm
• Surface Flatness: High‑precision laminated surface

Fibre Array Architecture

• Grid Type: Uniform rectangular matrix
• Coverage: Entire active display area
• Light Direction: Edge‑to‑face transmission
• Optical Coupling: Index‑matched resin
• Fibre Density: High‑density micro‑fibre arrangement

Light Injection System

• Placement: Top and bottom edges
• Light Sources: RGB LED arrays or RGB laser arrays
• Control: Mainboard CPU
• Driver Type: Constant‑current driver ICs
• Cooling: Micro‑heatsinks and thermal pads
• Connections: Flexible Printed Circuits (FPC)

Optical Performance

• High brightness
• Uniform illumination
• Minimal light leakage
• Minimal internal reflection
• High colour consistency
• Low optical distortion
• Wide viewing angle
• High contrast

Bonding Interfaces

• Upper Bond: Optically Clear Adhesive (OCA) → Capacitive Touch Layer
• Lower Bond: Structural Adhesive → Intermediate Structural Plate
• Alignment: Precision optical registration
• Assembly Tolerance: ±0.20 mm

Thermal Characteristics

The optical core is designed for passive thermal operation with minimal distortion.

• Primary Cooling: Passive conduction
• Heat Path: LED/Laser Modules → Thermal Pads → Rear Structural Plate → Ambient Air

Mechanical Specifications

• Core Thickness: 10.0 mm
• Construction: Rigid laminated optical assembly
• Edge Finish: Precision machined
• Corner Radius: 2 mm
• Maximum Panel Warp: ≤0.5 mm

Electrical Interface

The optical core contains no active electronics.

• Interfaces limited to LED/Laser modules
• FPC connections
• Driver PCB interfaces
• Control via Mainboard CPU

Internal Optical Path

• RGB LED / Laser Arrays
• Light Injection Couplers
• Micro‑Fibre Matrix
• Index‑Matched Resin
• Front Optical Surface
• Viewer

Environmental Specifications

• Operating Temp: 0°C to 50°C
• Storage Temp: −20°C to 70°C
• Humidity: 10%–90% RH
• UV Stability: High
• Moisture Resistance: High
• Service Life: > 50,000 hours

Manufacturing Process

1. Manufacture precision mould
2. Prepare micro‑fibre matrix
3. Position fibres in mould
4. Inject index‑matched resin
5. Vacuum degas
6. Cure under controlled conditions
7. Machine external dimensions
8. Polish front and rear surfaces
9. Inspect fibre alignment
10. Install light injection couplers
11. Install LED/Laser modules
12. Optical inspection
13. Bond to structural assembly
14. Final QA

Quality Assurance

• Optical clarity
• Resin transparency
• Fibre alignment
• Uniform illumination
• Transmission efficiency
• Surface flatness
• Dimensional accuracy
• Bonding quality
• Thermal stability

Serviceability

Serviceable Components

• LED/Laser edge modules
• Flexible Printed Circuits
• Driver PCBs

Non‑Serviceable Components

• Optical fibre matrix
• Resin core
• Laminated optical assembly

The display core is a factory‑manufactured optical assembly and is not field‑repairable.

Material Specification

Performance Characteristics

• High optical transmission efficiency
• Uniform full‑panel illumination
• Stable colour reproduction
• Low internal scattering
• Low attenuation
• Passive thermal compatibility
• High structural rigidity
• Long operational lifespan

System Integration

• MBP‑002 — Front Optical Assembly
• MBP‑003 — Capacitive Touch Subsystem
• MBP‑005 — Light Injection System
• MBP‑006 — Intermediate Structural Plate
• MBP‑009 — Mainboard & CPU Subsystem
• MBP‑015 — Power & Thermal Management

Design Requirements

• Full‑panel optical transmission
• Uniform illumination
• High transparency
• Minimal thermal distortion
• Long‑term optical stability
• High mechanical strength
• Compatibility with laminated assemblies
• Reliable integration with LED/Laser injection system