PxlTouch

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

Introduction

  • PxlTouch Ltd. 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, and 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 (examples):

    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 via:

    • 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: https://pxltouch.com/

  • Slogan: "To Be the Best Supplier of Teaching Equipment!"

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September 27, 2025
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