NEC NL4864HL11-01A | 3.5" Transflective LCD for All-Weather Industrial HMIs
The NEC NL4864HL11-01A is a specialized 3.5-inch VGA resolution TFT display engineered for mission-critical applications where visual clarity across a wide range of ambient lighting conditions is non-negotiable. Originally designed by NEC, a pioneer in display technology, this panel excels in environments from dimly lit factory floors to bright, direct sunlight. Its unique combination of a compact form factor, integrated resistive touch, and robust transflective technology makes it an essential component for portable and outdoor industrial devices.
Technical Deep Dive: Engineering for Clarity and Durability
The performance of the NEC NL4864HL11-01A is rooted in its sophisticated design, which prioritizes reliability and real-world usability over superficial specifications. Two features, in particular, define its engineering value.
- Advanced Transflective Technology: Unlike standard transmissive displays that wash out in bright light, this panel utilizes a transflective mode. In low-light conditions, the integrated WLED backlight functions as the primary light source for a clear, bright image. When exposed to strong ambient light, such as sunlight, the panel’s reflective properties harness that external light to illuminate the screen. This dual-mode operation not only ensures excellent sunlight readability but also significantly reduces power consumption outdoors, extending battery life for portable devices.
- Built for Industrial Environments: The display is engineered to withstand the rigors of industrial use. It features a wide operating temperature range of -20°C to 70°C, ensuring stable performance in freezing conditions or high-heat environments. The integrated 4-wire resistive touchscreen adds a layer of practical durability, allowing for reliable input from gloved hands or a stylus, a crucial requirement in many industrial and field service settings.
Key Parameter Overview
The NL4864HL11-01A is designed for engineers integrating displays into compact and demanding systems. Below is a summary of its core technical specifications.
| Parameter | Specification |
|---|---|
| Manufacturer | NEC |
| Model | NL4864HL11-01A |
| Screen Size | 3.5 inch |
| Resolution | 480(RGB) x 640 (VGA, Portrait Mode) |
| Panel Technology | LTPS TFT-LCD, TN, Transflective |
| Brightness | 200 cd/m² (Typ.) |
| Contrast Ratio | 180:1 (Transmissive) / 15:1 (Reflective) |
| Interface | CMOS (1 channel, 6-bit), 45-pin FPC |
| Touchscreen | 4-Wire Resistive Touchscreen |
| Operating Temperature | -20°C to 70°C |
| Outline Dimensions | 63.5 x 85.0 x 4.4 mm |
Application Focus: Where the NL4864HL11-01A Excels
While a legacy component, the NEC NL4864HL11-01A remains a vital part for the maintenance and repair of long-lifecycle equipment. Its specific feature set makes it indispensable in several key areas:
- Portable Data Terminals and Barcode Scanners: In logistics and retail, where devices are used both indoors and outdoors, its transflective screen ensures the user interface is always visible. The resistive touch is immune to false triggers from moisture and is fully operational with work gloves.
- Outdoor Diagnostic and Test Equipment: For field technicians servicing telecommunications, geology, or environmental monitoring systems, equipment must be readable under open skies. The NL4864HL11-01A provides the necessary clarity without needing a power-hungry, high-brightness backlight.
- Marine Electronics: On the deck of a vessel, displays for GPS plotters, fish finders, and engine monitoring systems face intense sun and spray. This display's sunlight readability and durable construction make it a reliable choice for these harsh marine applications.
- Legacy HMI and CNC Machine Repair: Many industrial machines designed for decades of service rely on specific display components. The NL4864HL11-01A serves as a critical, form-fit-function replacement part, enabling cost-effective repair over expensive system-wide upgrades.
Frequently Asked Questions (FAQ)
What is the primary advantage of a "transflective" display?
The core advantage is versatility. It combines the bright, rich colors of a transmissive (backlit) display for indoor use with the excellent sunlight readability of a reflective display for outdoor use. This creates an "all-weather" screen that consumes less power in bright conditions compared to brute-force high-brightness panels.
Is this display a suitable replacement for other 3.5" VGA panels?
Potentially, but careful evaluation is required. While the resolution and size are standard, the critical factors for compatibility are the 45-pin CMOS interface, the physical dimensions, and the mounting points. It is best suited as a direct replacement for systems that originally used the NL4864HL11 series. For new designs or different replacements, contact our technical team to explore modern alternatives from our portfolio of industrial LCD displays.
