Content last revised on June 15, 2026
NL2432HC22-36B: 3.5-inch QVGA Display for Longevity
A 3.5-inch QVGA TFT Display engineered for extended service life and environmental resilience in industrial applications.
The NL2432HC22-36B is a compact color LCD module designed by NEC for long-term dependability. Its design directly addresses total cost of ownership by incorporating a user-replaceable backlight, a critical feature for systems requiring extended field serviceability. This approach simplifies maintenance cycles and maximizes the operational lifespan of the host equipment, making it a sound choice for industrial instrumentation and control systems.
Top Specs: 3.5-inch QVGA (240x320) | 150 cd/m² Brightness | -10°C to +60°C Operating Temp
Key Benefits:
- Enhanced field serviceability
- Reliable industrial temperature range
Technical Deep Dive
Structural Integrity and Serviceability
The core engineering value of the NEC NL2432HC22-36B resides in its focus on durability and maintainability. What defines the NL2432HC22-36B's maintainability? Its user-replaceable backlight unit simplifies field service and extends operational life. The backlight is often the first component in an LCD to show age through dimming. By making this unit replaceable, the design allows the entire module's service life to be extended significantly. The replaceable backlight can be thought of as a swappable engine in a classic vehicle; it allows the high-value chassis—the LCD glass and drivers—to continue its function long after the primary wear component has aged, protecting the initial hardware investment.
The module is built upon an amorphous silicon (a-Si) TFT-LCD active matrix, a proven technology for industrial applications. It connects via a 40-pin CMOS interface, providing a standard 6-bit digital RGB signal path compatible with a wide range of display controllers and embedded systems. This straightforward integration path is essential for both new designs and retrofitting legacy equipment.
Application Scenarios & Value
Deployment Scenarios: Where Longevity is Paramount
The NL2432HC22-36B is optimized for applications where consistent performance and long-term availability are more critical than cutting-edge specifications. Its feature set is particularly suited for environments that demand robust and serviceable human-machine interfaces (HMIs). For industrial control panels requiring a compact QVGA display with proven serviceability, the NL2432HC22-36B's replaceable backlight makes it an optimal design choice. For more insight into the advantages of industrial-grade displays, see our guide on Industrial vs. Consumer Displays: Why Total Cost of Ownership Trumps Initial Price.
- Industrial Control Panels: In manufacturing and process control, where equipment operates for decades, the ability to service a display in the field without replacing the entire control unit is a significant cost-saver.
- Portable Test & Measurement Equipment: The module's compact 3.5-inch form factor and specified operating temperature range make it suitable for handheld diagnostic tools used by technicians in various field conditions.
- Medical Instrumentation: For non-diagnostic monitoring devices with long product certification and operational lifecycles, a display with a clear path for maintenance ensures continuity.
- Legacy System Upgrades: The standard QVGA resolution and digital RGB interface provide a reliable drop-in option for updating older systems that use similarly sized displays.
Intra-Series Comparison & Positioning
Positioning within the QVGA Display Landscape
The NL2432HC22-36B carves out a specific niche within the broader market of 3.5-inch QVGA displays. While other displays may offer higher brightness or wider color gamuts, this model's primary differentiator is its emphasis on serviceability. It is a strategic choice for OEMs who prioritize reliability and a low total cost of ownership over the product's entire lifecycle.
Compared to sealed, non-serviceable displays, the NL2432HC22-36B offers a tangible maintenance advantage. This contrasts with many modern displays designed with planned obsolescence in mind. For systems where a similar form factor is required but different specifications may be considered, the NL2432HC22-25B presents an alternative to evaluate for specific project needs. A deeper understanding of the underlying technology can be found in The Ultimate Guide to TFT-LCD.
Key Parameter Overview
Engineering Specifications for Robust Integration
The technical parameters of the NL2432HC22-36B are aligned to support its role in industrial and embedded systems. The specifications below provide the necessary data for system integration and performance evaluation.
Download the Tentative Datasheet
| Core Display Characteristics | |
|---|---|
| Part Number | NL2432HC22-36B |
| Diagonal Size | 3.5 inch (8.9 cm) |
| Resolution | 240(RGB) x 320 (QVGA) |
| Display Technology | a-Si TFT Active Matrix, Transmissive |
| Surface Treatment | Clear |
| Optical Performance | |
| Luminance | 150 cd/m² (Typical) |
| Contrast Ratio | 200:1 (Typical) |
| Viewing Direction | 6 o'clock |
| Color Depth | 262K (6-bit) |
| Electrical & Interface | |
| Interface Type | 6-bit Digital RGB (CMOS), 40 pins |
| Backlight System | 3-serial White LED (Replaceable) |
| Mechanical & Environmental | |
| Module Dimensions (W x H x D) | 64.0 x 85.0 x 6.0 mm |
| Active Area (W x H) | 53.64 x 71.52 mm |
| Operating Temperature | -10°C to +60°C |
| Storage Temperature | -20°C to +70°C |
Industry Insights & Strategic Advantage
Strategic Value in Long-Lifecycle Systems
Integrating the NEC NL2432HC22-36B into a product line is a strategic decision that favors long-term value. In industries like industrial automation, transportation, and specialized medical equipment, product lifecycles can easily exceed a decade. During this time, sourcing replacement parts and managing field repairs becomes a major logistical and financial consideration. The NL2432HC22-36B's design directly confronts this challenge. By providing a clear and simple maintenance path for the backlight, it ensures that the visual interface of a machine does not become its point of failure or the reason for a costly and complex redesign.
For engineering and procurement teams evaluating display options, we invite you to assess the NL2432HC22-36B against your project's specific requirements for longevity, serviceability, and operational environment. Contact our technical team for further data to support your design-in process.
