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NEC NL6448BC20-30D LCD Display

NL6448BC20-30D: A high-reliability 6.5" VGA TFT for industrial use. Features a wide -30/+80°C operating range, 550-nit brightness, and a 70k-hr backlight for superior longevity.

· Categories: LCD Display
· Manufacturer: NEC
· Price: US$
· Date Code: 2019+
. Available Qty: 484
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NL6448BC20-30D Specification

## NL6448BC20-3D: Industrial 6.5" VGA TFT Display for Demanding Environments

The NL6448BC20-30D is a 6.5-inch a-Si TFT-LCD module designed for high-reliability industrial applications, delivering excellent visual performance across an exceptionally wide operating temperature range. This display provides a robust solution for operators who require clear, consistent readability in equipment operating in extreme conditions. With its combination of high brightness, strong contrast, and long-life backlighting, it is engineered for longevity and consistent performance in the field.

### Key Parameter Overview

Decoding the Specs for Environmental Resilience and Optical Clarity

The technical specifications of the NL6448BC20-30D are tailored for industrial systems where operational uptime and clear human-machine interfacing are critical. The display's parameters ensure it can be integrated into a wide array of equipment exposed to challenging thermal and ambient light conditions.

Key Performance Indicators
Parameter Value
Screen Size 6.5 inches (17cm)
Resolution 640(RGB) x 480 (VGA)
Luminance 550 cd/m² (Typ)
Contrast Ratio 600:1 (Typ)
Viewing Angle (CR≥10) 80°/80°/80°/80° (U/D/L/R)
Operating Temperature -30°C to +80°C
Storage Temperature -30°C to +80°C
Interface LVDS (1 ch, 6/8-bit)
Backlight Lifetime 70,000 hours (Typ)
Surface Treatment Antiglare, Hard Coating (3H)

Download the NL6448BC20-30D datasheet for detailed specifications and performance curves.

### Application Scenarios & Value

System-Level Benefits in Industrial Control and Instrumentation

The NL6448BC20-30D is engineered for applications where environmental resilience is non-negotiable. Its standout feature is the exceptionally wide operating temperature range of -30°C to +80°C. For an engineer designing a control panel for outdoor construction machinery or an unheated industrial warehouse, this specification is paramount. It eliminates the need for auxiliary heating or cooling systems for the display, directly simplifying the mechanical design, reducing power consumption, and lowering the total cost of ownership. The 550 nit brightness coupled with an antiglare surface ensures the display remains readable under challenging industrial lighting, reducing operator error. This combination makes it an ideal fit for:

  • Industrial Automation and Control Panels
  • Heavy Machinery and Off-Road Vehicle HMIs
  • Test and Measurement Equipment
  • Outdoor Kiosks and Information Terminals
  • Marine and Navigation Systems

For systems that may require a different form factor or resolution while maintaining industrial-grade reliability, designers might also evaluate options such as the G084SN05 V9 for a larger 8.4-inch display or the AA057VF12 for a compact 5.7-inch alternative.

### Frequently Asked Questions (FAQ)

How does the -30°C to +80°C operating temperature range impact system design?

This wide temperature range allows the display to be deployed in environments with extreme temperature swings without requiring external thermal management hardware. This simplifies the enclosure design, reduces potential points of failure, and lowers overall system power budget, a significant advantage for mobile or remote equipment.

What is the practical benefit of a 70,000-hour backlight lifetime?

A 70,000-hour backlight lifetime, equivalent to nearly 8 years of continuous 24/7 operation, is a critical metric for long-term reliability. For industrial equipment with long service life expectations, this minimizes the need for costly maintenance and downtime associated with backlight replacement, directly improving the system's availability and reducing its lifecycle cost.

Is the LVDS interface on the NL6448BC20-30D suitable for environments with high electrical noise?

Yes, the Low Voltage Differential Signaling (LVDS Interface) is inherently robust against electromagnetic interference (EMI). Its differential nature makes it less susceptible to common-mode noise, which is prevalent in industrial settings with motors, actuators, and power inverters. This ensures higher signal integrity and a more reliable display image compared to single-ended interfaces.

Can this display be read easily in bright, indirect sunlight?

With a brightness of 550 cd/m² and an effective antiglare surface treatment, the NL6448BC20-30D offers good readability in high ambient light conditions, such as a factory floor or a vehicle cabin. While not designed for direct, full-sunlight applications, its optical characteristics are optimized for the typical challenges of industrial environments.

Engineering Perspective

Designing for Reliability from Component to System

From an engineering standpoint, the NL6448BC20-30D represents a component designed to enhance system-level robustness. The selection of a display is not merely about pixels and colors; it is a decision that impacts mechanical design, thermal engineering, and long-term serviceability. The extensive operating temperature range and long-life WLED backlight are foundational features that allow designers to build systems that are inherently more reliable and cost-effective over their operational lifespan. By specifying a component that is pre-hardened for environmental extremes, engineering teams can focus resources on core application development rather than on compensatory thermal and mechanical design, accelerating time-to-market and delivering a more dependable final product.

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