Content last revised on November 29, 2025
EL640.480-AF1 ET: A Rugged TFEL Display Engineered for Extreme Environments
The Lumineq EL640.480-AF1 ET is a 10.4-inch 640x480 VGA Thin Film Electroluminescent (TFEL) display engineered for flawless performance in conditions where conventional LCDs falter. Its core value lies in delivering unparalleled operational stability and image clarity across an extreme temperature range and in high-shock environments. With key specifications including a typical luminance of **65 cd/m²**, a **<1 ms response time**, and an expansive operating temperature range, this display ensures consistent readability and rugged reliability. This makes it the optimal choice for critical human-machine interfaces (HMIs) in applications like heavy industrial machinery, avionics, and public safety vehicles, where failure is not an option.
Application Scenarios & Value
Delivering Uncompromised Performance in Demanding Field Conditions
For systems deployed in punishing environments, the EL640.480-AF1 ET provides a decisive advantage. Consider an HMI on a piece of arctic drilling equipment or in the cockpit of a military vehicle; in these scenarios, standard liquid crystal displays suffer from freezing, slowed response times, and potential damage from shock and vibration. The solid-state nature of this Thin Film Electroluminescent (TFEL) panel makes it inherently robust. Its ability to operate from -25°C to +65°C ensures immediate, flicker-free startup and consistent performance, a critical factor for operator efficiency and safety. The display's 640x480 VGA resolution provides clear, unambiguous data representation, essential for complex control systems. Where many displays fail, the EL640.480-AF1 ET is engineered to endure, making it an indispensable component for mission-critical heavy machinery and transportation systems.
While the EL640.480-AF1 ET excels in rugged monochrome applications, for systems requiring color and operating in less extreme temperature ranges, a high-brightness TFT-LCD such as the G104SN03 V5 could be a suitable consideration.
Key Parameter Overview
Decoding the Specifications for Extreme Environment Reliability
The technical specifications of the EL640.480-AF1 ET underscore its suitability for industrial and defense applications. Each parameter is a testament to its design focus on durability and performance consistency over a long operational life.
| Optical Characteristics | |
|---|---|
| Display Technology | Thin Film Electroluminescence (TFEL) |
| Resolution | 640 x 480 pixels |
| Luminance | 65 cd/m² (Typical) |
| Contrast Ratio | 50:1 (Typical at 500 lux) |
| Viewing Angle | >179° |
| Response Time | <1 ms at all temperatures |
| Mechanical & Environmental Specifications | |
| Active Area | 129.3 x 97.0 mm |
| Weight | 280 g (approx.) |
| Operating Temperature | -25°C to +65°C (Extended Temperature Model) |
| Shock & Vibration Resistance | High (inherent to solid-state TFEL technology) |
| Electrical & Interface | |
| Interface | 4-bit Parallel Data (LCD Type) |
| Power Consumption | 4.5 W (Typical) |
Technical Deep Dive
Understanding the TFEL Advantage: Beyond Conventional Displays
What truly sets the EL640.480-AF1 ET apart is its Thin Film Electroluminescent (TFEL) technology. Unlike a standard LCD that acts as a light shutter for a separate backlight, a TFEL display is emissive. Each pixel is an individual, solid-state light source sandwiched between layers of conductors and insulators. Think of it as a microscopic grid of tiny, incredibly durable light bulbs. This fundamental difference is the source of its ruggedness. There is no liquid crystal to freeze or leak and no complex backlight assembly susceptible to vibration failure. This construction results in an exceptionally fast response time of under 1 millisecond, which remains constant even at -25°C, eliminating the motion blur or "ghosting" that plagues LCDs in cold weather. This makes TFEL technology a cornerstone for creating truly resilient industrial-grade HMIs that must provide clear, immediate information in the world's harshest operating conditions.
Frequently Asked Questions (FAQ)
What is the primary engineering benefit of the <1 ms response time, especially in cold environments?
The sub-1-millisecond response time guarantees that the display shows real-time data and video without any smearing or "ghosting," a common failure point for LCDs at low temperatures. For an operator of a crane or an emergency vehicle, this means immediate, blur-free visual feedback, which is critical for precision and safety.
How does the reliability of a TFEL display like the EL640.480-AF1 ET compare to a standard industrial TFT-LCD?
The solid-state, inorganic structure of TFEL technology provides inherently superior reliability in high-shock, high-vibration, and extreme temperature environments. With no liquid crystal or complex backlight mechanics, it has fewer potential points of failure, leading to a significantly longer mean time between failures (MTBF) and a lower total cost of ownership in demanding applications.
For designs requiring immediate visual clarity in extreme temperatures or high-vibration settings, the EL640.480-AF1 ET offers a proven and reliable solution. For more information or to discuss your specific application needs, please contact our technical sales team for a consultation.
