Content last revised on January 11, 2026
Sharp LQ056T3BG01 | 5.6" 320x234 QVGA CCFL TFT LCD Module
The Sharp LQ056T3BG01 is a 5.6-inch a-Si TFT-LCD module engineered for applications where visual clarity and proven reliability are essential. Designed with a QVGA (320x234) resolution and utilizing a CCFL backlight, this display provides a stable, long-lifecycle imaging solution tailored for industrial control panels, medical diagnostic equipment, and specialized test instruments. It represents a robust solution for maintaining legacy systems and supporting new designs that demand established technology.
Technical Deep Dive: Why the LQ056T3BG01 is a Proven Solution
To appreciate the value of the Sharp LQ056T3BG01, it's essential to understand the engineering choices behind its performance. Two features stand out for system integrators.
QVGA Resolution and Clear Viewing
- Technical Principle: The LQ056T3BG01 utilizes an amorphous silicon (a-Si) Thin-Film Transistor (TFT) active matrix, supporting a 320x234 QVGA resolution. This standard industrial resolution is paired with a 200:1 contrast ratio and specific viewing angles (45/45/15/35 U/D/L/R) that are optimized for fixed-position viewing typically found in instrument panels.
- Application Value: For industrial instrumentation or legacy HMI panels, the QVGA resolution is sufficient for clear status readouts, textual information, and simple graphic interfaces. The display ensures that critical data remains legible and accurate, serving as a reliable interface for process control and monitoring.
The CCFL Backlight Advantage for Longevity
- Technical Principle: This module is illuminated by a CCFL (Cold Cathode Fluorescent Lamp) backlight, providing a uniform brightness of $250 \text{ cd/m}^2$. Unlike WLED backlights, CCFL is a proven industrial technology known for its stable chromaticity over long operating periods and is often required for legacy systems replacement.
- Application Value: In environments requiring visual consistency over decades (like medical or specialized test equipment), the CCFL backlight offers a predictable and long-lasting light source. Its use guarantees seamless compatibility and avoids the common issues associated with retrofitting modern LED drivers into older systems.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Model Name | LQ056T3BG01 |
| Screen Size | 5.6 inches |
| Resolution | 320(RGB)×234, QVGA |
| Operating Temperature | -10 ~ 70 °C |
| Brightness | 250 cd/m² (Typ.) |
| Contrast Ratio | 200:1 (Typ.) |
| Viewing Angle (U/D/L/R) | 45/45/15/35 (Typ.) |
| Signal Interface | Parallel RGB (TTL) |
| Backlight Type | CCFL (Requires external inverter) |
For complete specifications and detailed timing diagrams, please contact us for the official datasheet.
Application-Specific Value: Solving Real-World Challenges
- Industrial Automation (HMI Panels): In the world of industrial control systems, HMIs are the primary point of interaction. The durability and wide temperature range of the LQ056T3BG01 ensure it can withstand the electrical noise and physical rigors of a manufacturing plant, providing a stable and clear interface for process control and monitoring.
- Test and Measurement Instruments: Portable oscilloscopes, spectrum analyzers, and network testers require displays that can render data without ambiguity. The QVGA resolution of the Sharp LQ056T3BG01 on a compact 5.6" screen provides the proven stability needed for demanding visualization tasks in older or legacy equipment.
Frequently Asked Questions (FAQ)
- Does this display require an external backlight inverter?Yes, the LQ056T3BG01 comes with the CCFL lamp unit but requires an external high-voltage inverter circuit. This is standard for CCFL technology and gives designers flexibility in choosing an inverter that matches the system's power budget and dimming requirements.
- Is the LQ056T3BG01 suitable as a replacement for older QVGA displays?Yes. Due to its standard QVGA resolution, CCFL backlight, and common TTL interface, the LQ056T3BG01 is an ideal, reliable, and often necessary replacement for older or end-of-life displays in legacy industrial and medical systems.
The Sharp LQ056T3BG01 offers a proven, reliable, and high-performance foundation for your next project. To explore other models or discuss your specific requirements, browse our complete range of industrial LCD modules or reach out to our technical specialists today.
