Content last revised on November 21, 2025
NL3224AC35-06: A Robust 5.5-inch QVGA Display Engineered for Extreme Operating Temperatures
A Compact Display Built for Demanding Industrial Environments
The NEC NL3224AC35-06 is a 5.5-inch a-Si TFT-LCD panel engineered for long-term reliability in applications where temperature extremes are a critical operational factor. With its exceptional operating temperature range, this display provides a stable and dependable human-machine interface (HMI) solution for equipment deployed in harsh indoor and outdoor settings. Key specifications include a 320x240 QVGA resolution, 250 cd/m² brightness, and a robust CCFL backlight with an integrated inverter. Its design prioritizes durability and consistent performance over a wide thermal spectrum, ensuring readability and operational integrity. For systems requiring robust performance in challenging thermal conditions, the NL3224AC35-06 offers a proven and reliable display core.
Application Scenarios & Value
Ensuring Uptime in Uncontrolled Thermal Environments
The standout feature of the NEC NL3224AC35-06 is its wide operational temperature range of -30°C to 85°C. This makes it an excellent fit for industrial control panels, unheated warehouses, and outdoor-adjacent equipment where ambient temperatures can fluctuate dramatically. Consider a portable diagnostic tool used in automotive garages or on construction sites; it must function reliably whether in a freezing winter morning or a hot summer afternoon. The NL3224AC35-06's ability to operate flawlessly in these conditions prevents costly downtime and ensures that critical data is always accessible to the operator. This broad thermal resilience, coupled with a vibration resistance of 3.0G, solidifies its suitability for mobile and ruggedized applications. While this QVGA model is ideal for compact interfaces, for applications demanding higher pixel density in a similar form factor, the NL6448BC20-30 provides a VGA resolution alternative.
Key Parameter Overview
Core Specifications for System Integration
The following table outlines the key performance metrics of the NL3224AC35-06, based on the official manufacturer's documentation.
| Parameter | Specification |
| Screen Size | 5.5 inch |
| Resolution | 320(RGB)×240 [QVGA] |
| Display Technology | a-Si TFT-LCD, TN, Normally White, Transmissive |
| Brightness | 250 cd/m² (Typ.) |
| Contrast Ratio | 85:1 (Typ.) |
| Viewing Angle | 50/50/25/25 (Typ.)(CR≥10) (L/R/U/D) |
| Response Time | 16 (Typ.)(Tr+Td) ms |
| Parameter | Specification |
| Signal Interface | Analog RGB + Composite Video |
| Supply Voltage | 9.5V (Typ.) |
| Backlight System | CCFL with integrated inverter |
| Operating Temperature | -30°C to 85°C |
| Storage Temperature | -40°C to 95°C |
Download the NL3224AC35-06 datasheet for detailed specifications and performance curves.
Frequently Asked Questions (FAQ)
What is the primary benefit of the -30°C to 85°C operating temperature range?
This wide range ensures operational reliability for equipment deployed in environments without climate control, such as outdoor kiosks, agricultural machinery, or industrial freezers, directly enhancing system uptime and reducing failures from thermal stress.
Does the NL3224AC35-06 include its own backlight driver?
Yes, the module incorporates a CCFL backlight complete with an inverter. This simplifies system integration by eliminating the need for an external backlight driver, reducing both design complexity and component count.
What type of video signals does this display accept?
The NL3224AC35-06 supports both Analog RGB and Composite Video inputs, offering flexibility for interfacing with a variety of legacy and industrial video sources. This dual-signal capability is advantageous for retrofitting older systems or for new designs that require versatile input options.
Is this display suitable for applications with significant vibration?
With a vibration tolerance of 3.0G (29.4 m/s²), the display is engineered to withstand the mechanical stresses common in portable equipment, vehicle-mounted systems, and factory floor machinery, contributing to its overall mechanical robustness.
Technical Deep Dive
Design Considerations for Reliability in Harsh Environments
The engineering choices behind the NEC NL3224AC35-06 reflect a clear focus on durability. The specified storage temperature range of -40°C to 95°C is a testament to the robustness of its materials and construction. Think of this range as the display's ability to survive in a powered-down state inside a vehicle that goes from a freezing overnight low to a scorching peak temperature under direct sun. The materials are selected to resist the expansion and contraction that can cause delamination or connection failures in less robust displays. Furthermore, the inclusion of an anti-glare and hard coating (2H) surface treatment serves a dual purpose: it enhances readability in variable lighting conditions and provides a degree of physical protection against incidental contact and abrasion in the field. These features collectively reduce the total cost of ownership by improving field reliability and extending the product's operational life.
Industry Insights & Strategic Advantage
Meeting the Demand for Legacy System Support and Ruggedization
In an industry often focused on the latest high-resolution displays, the NEC NL3224AC35-06 holds a strategic position for maintaining and upgrading long-life industrial equipment. Many established systems in manufacturing, automation, and test & measurement rely on controllers with Analog RGB or composite video outputs. Sourcing a replacement display with these native inputs and an industrial-grade temperature specification is a significant challenge. The NL3224AC35-06 directly addresses this need, providing a path to extend the life of valuable capital equipment without requiring a complete control system overhaul. Its design aligns with the principle of maximizing asset utilization, a key concern in industrial operations. This focus on backward compatibility and extreme environment durability ensures its continued relevance in sectors where reliability is a far more critical metric than pixel density. For more information on industrial display technologies, see this guide to TFT-LCDs in industrial applications or explore display solutions from leading manufacturers like NEC.
Engineering Support
Our engineering team is available to provide further technical details and integration support for the NL3224AC35-06. For detailed specifications, performance curves, and mechanical drawings, please refer to the official datasheet. Contact us to discuss your specific application requirements.
