LCD All-in-One Product Structure, Functionality, and Assembly

Shenzhen Fangcheng Teaching Equipment Co.

Training on LCD All-in-One Products: Structure and Working Principles

Introduction

• Shenzhen Fangcheng Teaching Equipment Co. specializes in developing innovative and high-performance LCD all-in-one machines, designed for smart teaching and human-computer interaction.
• Goal: To become the leading global supplier of teaching equipment.

Overview of the Infrared LCD Integrated Machine

• What is it?
  • An advanced, intelligent human-computer interaction system.
  • Combines:
    • Image display
    • Sound output
    • Touch control
    • Computer functionality
• How does it work?
  • Utilizes an infrared touch frame equipped with a dense X-Y matrix of infrared beams.
  • When a touch object (e.g., finger) interrupts the beams:
    • The system detects the interruption and sends signals to determine X and Y coordinates.
    • The intelligent control system processes the coordinates and triggers the corresponding screen functions for seamless human-computer interaction.

Key Components of the LCD System

1. Backlight and LCD Screen

• Backlighting ensures screen visibility and brightness.
• Two main backlight types used in LCD modules:
  1. DLED (Direct Lighting) Technology
     • Advantages: Low cost, excellent heat dissipation.
     • Disadvantages: Slightly thicker body, moderate uniformity.
  2. ELED (Edge Lighting) Technology
     • Advantages: Slim body design, superior uniformity.
     • Disadvantages: Higher cost, limited heat dissipation.

2. DLED LCD Module Assembly Steps

• Assembly process for various models:
  1. FC65 T6-D01W
     • Specs: 10×16 matrix with 160 lamp beads.
     • Optical Layers: Reflector + diffuser + dual brightness enhancement films.
     • Brightness: Standard 400 nits.
  2. FC75 T6-D02W
     • Specs: 8×20 matrix with 160 lamp beads.
     • Optical Layers: Similar to above.
     • Brightness: Standard 400 nits.
  3. FC85/86 T6-D02W
     • Specs: 10×24 matrix with 240 lamp beads.
     • Optical Layers: Includes a DOP layer for improved performance.
     • Brightness: Standard 400 nits.

Common Faults and Picture Analysis

• Understanding and diagnosing common issues through:
  • Picture quality analysis.
  • Identifying faults caused by irregular backlighting or faulty touch frames.

Company Vision

• Mission: To lead the global market in teaching equipment by delivering innovative and reliable LCD solutions.
• Slogan: “To Be the Best Supplier of Teaching Equipment!”