EL640.400-C3 FRA: A Rugged TFEL Display for Extreme Environments
## EL640.400-C3 FRA: 640×400 TFEL Display for Extreme Conditions
The Lumineq EL640.400-C3 FRA is a Thin Film Electroluminescent (TFEL) display engineered for absolute reliability and image clarity in environments where conventional displays fail. Its unique value stems from its solid-state construction, delivering unmatched performance across extreme temperatures and under severe mechanical stress. This display provides a robust solution for critical human-machine interfaces (HMIs).
* **Core Specifications**: 640 x 400 Resolution | <1 ms Response Time | -40°C to +85°C Operating Range * **Key Advantages**: Exceptional shock and vibration immunity, consistent optical performance across all temperatures. * **Application Focus**: Ideal for systems requiring a high shock and vibration resistant display that functions flawlessly from a cold start in freezing conditions to peak operational heat.
Download Official Datasheet (PDF)
Technical Analysis: Reliability by Design
The engineering value of the EL640.400-C3 FRA is rooted in its fundamental TFEL technology. Unlike liquid crystal displays, this panel has no liquid components that can freeze or degrade under pressure or vibration. This results in a demonstrated Mean Time Between Failures (MTBF) exceeding 100,000 hours, a critical metric for systems deployed in remote or mission-critical locations where maintenance is infrequent or impossible. The datasheet quantifies this ruggedness with a shock tolerance of 100 g-force.
The display’s performance across its vast operating temperature range (-40°C to +85°C) is a significant advantage. The response time of less than 1 millisecond remains constant whether at sub-zero temperatures or in extreme heat. This can be compared to the difference between an instant light switch and cold oil pouring slowly; the TFEL provides immediate, smear-free image updates essential for real-time process control or vehicle instrumentation. This consistency ensures that operators receive clear, actionable information without delay, regardless of the ambient environment.
Optimized Application Scenarios
The specific characteristics of the EL640.400-C3 FRA make it a superior choice for a range of demanding fields:
* **Avionics & Defense**: Its proven resistance to high shock and G-forces ensures operational integrity in aircraft and ground vehicles.
* **Marine & Offshore**: The >179° viewing angle and high-contrast image are readable from any position on a ship’s bridge, even in direct sunlight.
* **Industrial Automation**: Its immunity to electromagnetic interference and physical resilience allow for deployment directly on factory floors near heavy machinery.
* **Medical & Scientific Instruments**: The extremely long lifetime and stable brightness are crucial for diagnostic and monitoring equipment that must function reliably for years.
This display is the optimal choice for systems requiring unwavering visual performance under extreme mechanical stress and temperature fluctuations.
Key Specifications of the EL640.400-C3 FRA
| Parameter | Value |
|---|---|
| **Display Performance** | |
| Resolution | 640 x 400 Pixels |
| Luminance (Typical) | 50 cd/m² |
| Viewing Angle | >179° (Symmetrical) |
| Response Time | < 1 ms |
| **Mechanical Specifications** | |
| Active Area | 195 mm (W) x 121.8 mm (H) |
| Weight | 400 g (Typical) |
| **Environmental Ratings** | |
| Operating Temperature | -40°C to +85°C |
| Shock Resistance | 100 g, 4 ms |
Engineer’s FAQ
What makes the EL640.400-C3 FRA suitable for applications with high shock and vibration?
Its solid-state TFEL technology, with no moving parts or liquid, makes it inherently robust. The glass panels are rigidly sealed, and the unit is specified to withstand a 100 g-force shock test per IEC 68-2-27 standards, making it ideal for integration into extreme reliability systems.
What are the primary power supply requirements?
The display requires two DC inputs: a +5V supply for logic (VCC1) and a wide-range +11V to +30V supply (VCC2) for the integrated DC/DC converter that generates the high voltages needed to drive the EL panel.
How does the viewing angle compare to an industrial TFT LCD?
The EL640.400-C3 FRA offers a symmetrical viewing angle greater than 179 degrees. This means the image is clear with no color or contrast shift from almost any angle. This is a significant advantage over many industrial TFTs, which may have limited viewing cones that can compromise readability in smart factory HMI installations.
What is the data interface for this display?
The display utilizes an LCD-type 4-bit parallel interface. It is designed to be compatible with standard VGA modes (350 and 400-line), simplifying integration with existing system controllers and single-board computers.
Enabling Designs for Harsh-Duty Cycles
For engineering teams developing systems where operational failure is not an option, the EL640.400-C3 FRA provides a proven foundation of durability and consistent visual performance. Its solid-state construction and broad operational limits directly address the primary failure points of liquid crystal-based displays, ensuring long-term reliability in the most challenging applications.