Content last revised on November 20, 2025
NL6448AC33-18: Engineering a 10.4-inch VGA Display for Long-Term Industrial Reliability
The NEC NL6448AC33-18 is a 10.4-inch a-Si TFT-LCD module engineered for consistent, reliable performance in demanding industrial and process control applications. It delivers proven durability through its robust construction and long-life components, ensuring operational stability across a wide range of environmental conditions. With key specifications of 10.4” | 640x480 VGA | 200 cd/m² Brightness | CCFL Backlight, this display provides excellent visual clarity and a long service life. Its design directly addresses the need for dependable human-machine interfaces (HMIs) where uptime is a critical operational metric. For industrial systems requiring a stable VGA interface and proven field performance, the NL6448AC33-18 offers a well-engineered solution.
Application Scenarios & Value
System-Level Benefits in Industrial Automation and Control
The NEC NL6448AC33-18 is optimized for environments where reliability and long-term service are paramount. Its features make it a strong candidate for integration into a variety of industrial equipment.
A primary application is in Human Machine Interfaces (HMIs) for industrial automation. Consider an HMI panel on a factory floor, subject to daily temperature shifts and continuous operation. The NL6448AC33-18's specified operating temperature of 0°C to 50°C ensures stable performance in such non-climate-controlled settings. Its 200 cd/m² brightness and anti-reflection surface treatment provide clear readability for operators under typical factory lighting.
What is the main benefit of its CCFL backlight? Its established technology and replaceable nature contribute to a lower total cost of ownership by simplifying maintenance for long-term deployments. The inclusion of an inverter simplifies the power system design for engineers. This makes the module suitable for legacy system upgrades and new designs prioritizing serviceability, such as in process controllers, factory automation PCs, and control system display terminals.
For systems that require a higher pixel density for more complex graphical user interfaces, the related NL10276BC24-21F offers a 1024x768 XGA resolution in a similar form factor.
Key Parameter Overview
Decoding the Specs for Environmental Resilience and Integration
The specifications of the NL6448AC33-18 are tailored for industrial utility, balancing performance with robustness. The contrast ratio, for instance, is a critical parameter for ensuring readability. A 150:1 ratio can be thought of as the difference in brightness between the deepest black and the brightest white the screen can produce; this level is effective for displaying clear text and schematics in typical control room environments.
The table below outlines the key functional parameters based on the official datasheet.
| Category | Parameter | Specification |
|---|---|---|
| Display Characteristics | Screen Size | 10.4 inches (26 cm) |
| Resolution | 640(RGB) x 480 (VGA) | |
| Aspect Ratio | 4:3 | |
| Pixel Arrangement | RGB Vertical Stripe | |
| Optical Performance | Display Mode | TN, Normally White, Transmissive |
| Brightness | 200 cd/m² (Typ.) | |
| Contrast Ratio | 150:1 (Typ.) | |
| Viewing Angle (L/R/U/D) | 45/45/30/20 (Typ.)(CR≥10) | |
| Display Colors | 262K (6-bit) | |
| Interface & Electrical | Signal Interface | CMOS (1 ch, 6-bit), 31 pins |
| Supply Voltage (VCC) | 3.3/5.0V (Typ.) | |
| Backlight System | CCFL (2 pcs) with Inverter | |
| Mechanical & Environmental | Outline Dimensions | 243 x 185.1 x 11.0 mm |
| Weight | 470g (Typ.) | |
| Operating Temperature | 0°C to 50°C | |
| Storage Temperature | -20°C to 60°C |
Download the NL6448AC33-18 datasheet for detailed specifications and performance curves.
Industry Insights & Strategic Advantage
Meeting the Demand for Durable HMIs in Established Systems
In the world of industrial displays, longevity and reliability often take precedence over cutting-edge resolution or features. The NEC NL6448AC33-18 serves a critical role in this segment. As industrial automation continues to rely on robust and maintainable systems, components with proven track records become strategic assets. This display, with its standard VGA resolution and CMOS interface, offers a direct integration path for a vast number of existing industrial controllers and embedded systems. The focus on a replaceable CCFL backlight is a key design choice that aligns with the industry's need for a low total cost of ownership and extended product lifecycles, a philosophy supported by manufacturers like NEC. For OEMs and system integrators, specifying a component like the NL6448AC33-18 mitigates the risks associated with unproven technology in applications where system failure is not an option.
Frequently Asked Questions (FAQ)
What makes the NL6448AC33-18 suitable for industrial environments over consumer-grade displays?
The NL6448AC33-18 is designed specifically for industrial use, featuring a wider operating temperature range (0°C to 50°C), a replaceable long-life CCFL backlight system, and robust construction intended for continuous operation. These features ensure higher reliability and serviceability compared to consumer displays, which are typically not rated for such conditions.
How does the replaceable CCFL backlight affect the Total Cost of Ownership (TCO)?
The ability to replace the backlight tubes extends the operational life of the entire display module without requiring a full replacement. This significantly lowers long-term maintenance costs and reduces downtime, directly improving the TCO for equipment expected to be in service for many years.
A Strategic Component for Reliable System Design
For engineering teams developing or maintaining industrial control systems, the NEC NL6448AC33-18 provides a stable and reliable display solution. To discuss how this module can fit into your specific application's requirements, or to inquire about its integration, please contact our technical support team for detailed, engineering-level assistance.
