Tianma NL6448BC26-26 | High-Reliability 8.4-inch VGA Display for Industrial Applications
The Tianma NL6448BC26-26, formerly from NEC, is an 8.4-inch a-Si TFT-LCD module engineered for long-term performance and reliability in demanding industrial environments. It delivers consistent, high-quality VGA resolution visuals, making it an ideal display solution for legacy system maintenance, targeted upgrades, and new designs where proven durability is paramount. This display isn't just a component; it's a commitment to operational continuity.
- Proven VGA Resolution: The 640x480 pixel format provides crisp, clear imagery perfectly suited for traditional Human-Machine Interfaces (HMIs), control systems, and monitoring equipment.
- Exceptional Durability: With an extremely wide operating temperature range of -30°C to 80°C and a vibration resistance of 2.0G, this module is built to withstand harsh industrial conditions.
- Long-Life LED Backlight: Featuring a robust and replaceable WLED backlight system rated for 70,000 hours, the NL6448BC26-26 minimizes maintenance cycles and total cost of ownership.
- High Visual Performance: A typical brightness of 500 cd/m² and a 1000:1 contrast ratio ensure excellent readability, while the 80/80/80/80 viewing angles provide clarity from all perspectives.
- Flexible Integration: It supports both 3.3V and 5.0V power supply voltages and utilizes a standard 6-bit CMOS digital interface for straightforward system integration.
Key Parameters Overview
Designed for engineers who require precise, reliable data for system integration, the NL6448BC26-26 offers a well-balanced set of specifications for a variety of industrial uses. For comprehensive technical details, you can Download the Datasheet.
| Parameter | Specification |
|---|---|
| Screen Size | 8.4 inches (21 cm) |
| Resolution | 640(H) x 480(V) [VGA] |
| Display Technology | a-Si TFT-LCD, Normally White, Transmissive |
| Brightness | 500 cd/m² (Typical) |
| Contrast Ratio | 1000:1 (Typical) |
| Viewing Angle (L/R/U/D) | 80°/80°/80°/80° (Typical) |
| Interface | CMOS (1 ch, 6-bit) |
| Backlight | White LED (WLED), 70,000-hour lifetime, Replaceable |
| Operating Temperature | -30°C to +80°C |
| Outline Dimensions | 200.0 x 152.0 x 8.7 mm (Max) |
Technical Deep-Dive: Engineering for Longevity
The NL6448BC26-26 is engineered from the ground up for endurance. Its foundation is a proven a-Si TFT (Amorphous Silicon) panel structure, a technology renowned for its stability and cost-effective reliability in the industrial sector. This mature platform ensures consistent performance and mitigates the risks associated with newer, less-proven technologies in critical applications.
A key feature is its long-life WLED backlight system. Designed for a typical lifetime of 70,000 hours, it directly addresses a major pain point in industrial equipment: display longevity. Furthermore, the backlight is replaceable, offering a significant advantage for long-term maintenance strategies and extending the service life of the entire host system. This design choice underscores a deep understanding of the needs of displays in heavy machinery and other long-deployment scenarios.
Application Scenarios & Value Proposition
The robust feature set of the Tianma NL6448BC26-26 makes it an exceptional choice for a wide range of applications where uptime and reliability are non-negotiable.
- Industrial Control Panels & HMIs: Its wide operating temperature, high contrast, and standard VGA resolution are ideal for factory automation and process control systems that operate in challenging thermal environments.
- Test and Measurement Equipment: The clear, stable image and reliable CMOS interface ensure that critical data from oscilloscopes, spectrum analyzers, and other instruments is displayed accurately and consistently.
- Medical Instrumentation: For non-diagnostic monitoring and equipment interfaces, its long-term availability and reliable performance make it a stable choice, simplifying supply chain management for devices with long life cycles.
- Transportation and Kiosks: The excellent viewing angles and durable construction lend themselves well to in-cabin displays, ticketing machines, and information kiosks where readability from multiple angles is essential.
Engineer's FAQ
What is the primary advantage of the CMOS interface on the NL6448BC26-26?
The 6-bit CMOS parallel interface is a highly standard, straightforward digital connection. Its main advantage lies in its simplicity and ease of implementation, especially for drop-in replacements in legacy systems that were originally designed with this interface. It eliminates the need for redesigning the host controller to accommodate more complex interfaces like LVDS, saving significant engineering time and cost during system repairs or upgrades. For a broader overview of display technologies, explore The Ultimate Guide to TFT-LCD.
How does this display compare to a similar model like the NL6448BC20-30?
While both are high-quality industrial displays, they serve different needs. The NL6448BC26-26 is an 8.4-inch display with a CMOS interface and 500-nit brightness. In contrast, a model like the NL6448BC20-30 is a 6.5-inch display often featuring a higher brightness (e.g., 600 nits) and an LVDS interface. You would choose the NL6448BC26-26 for its larger size and direct compatibility with CMOS systems. You might opt for an LVDS model when designing a new, more compact system or if the application requires the superior noise immunity of a differential interface. For expert guidance on your specific application, it is always best to contact our technical team.
