Optrex DMF-50260NFU-FW-23 | Robust Monochrome Graphic LCD for Demanding Industrial HMIs
The Optrex DMF-50260NFU-FW-23 stands as a testament to purpose-built engineering, delivering exceptional clarity and long-term reliability for industrial and specialized equipment. Where many modern displays prioritize color and high resolution, this monochrome graphic LCD focuses on providing high-contrast, easily readable data in environments where performance and durability are non-negotiable. It is an ideal solution for legacy system support, new designs requiring straightforward human-machine interfaces (HMI), and applications where operational integrity outweighs aesthetic complexity.
- High-Contrast FSTN Technology: Delivers a sharp black-and-white image with a wide viewing cone, ensuring excellent legibility from various angles and in diverse lighting conditions.
- Robust Industrial Build: Engineered to withstand the rigors of industrial environments, offering stable performance across a wide operating temperature range.
- Integrated CCFL Backlight: Provides bright, uniform illumination for clear visibility, a proven technology known for its long operational life in static display applications.
- On-Board Controller: Features a built-in controller (Toshiba T6963C or equivalent) which simplifies integration by offloading screen management tasks from the host microprocessor.
Key Technical Specifications
Designed for engineers who require precise and reliable components, the DMF-50260NFU-FW-23 offers a focused set of features optimized for industrial instrumentation and control. For a comprehensive list of parameters, you can download the official Optrex DMF-50260NFU-FW-23 datasheet.
| Parameter | Specification |
|---|---|
| Display Technology | FSTN (Film-compensated Super-twisted Nematic) |
| Display Mode | Transmissive, Negative Mode |
| Resolution | 240 x 64 dots |
| Outline Dimensions | 180.0(W) x 65.0(H) x 12.5(D) mm |
| Active Area | 132.0(W) x 39.0(H) mm |
| Backlight System | Cold Cathode Fluorescent Lamp (CCFL) |
| Interface | 8-bit Parallel Data Bus |
| Operating Temperature | 0°C to +50°C |
Application Scenarios & Engineering Value
The specific feature set of the Optrex DMF-50260NFU-FW-23 makes it a superior choice for applications where information clarity and operational uptime are critical design criteria.
- Industrial Control Panels: In manufacturing automation, process controllers, and PLC interfaces, the display’s high contrast ratio and straightforward data presentation allow operators to read critical system status, alarms, and settings at a glance, minimizing errors.
- Medical and Laboratory Equipment: For diagnostic devices, infusion pumps, and scientific instruments, reliability is paramount. This display provides a stable, flicker-free readout of vital parameters, backed by a design that prioritizes longevity over the complexity of modern color industrial LCD displays.
- Test and Measurement Instruments: In oscilloscopes, spectrum analyzers, and network testing tools, the 240x64 resolution is perfectly suited for rendering waveforms, menus, and measurement data without the overhead of a full graphical OS.
Technical Deep Dive: The Engineering of Reliability
The Clarity of FSTN Technology
Unlike standard STN displays, Film-compensated Super-twisted Nematic (FSTN) technology incorporates a retardation film layer between the polarizer and the STN cell. This engineering choice actively corrects for color dispersion, resulting in a highly achromatic, true black-on-white display. For an engineer, this translates directly into superior legibility and reduced eye strain for operators who monitor the HMI for extended periods.
CCFL Backlight: A Legacy of Uniformity
While LED backlights are now common, the Cold Cathode Fluorescent Lamp (CCFL) in the DMF-50260NFU-FW-23 offers distinct advantages for certain industrial use cases. CCFLs are known for their diffuse, even light distribution across the entire screen, eliminating the "hot spots" that can occur with improperly designed LED arrays. Their long, stable lifespan makes them a proven and dependable choice for instrumentation intended for years of continuous service. Proper industrial display maintenance further extends its operational life.
Frequently Asked Questions for Engineers
1. Is the Optrex DMF-50260NFU-FW-23 a suitable drop-in replacement for older 240x64 displays?
In many cases, yes. Its use of the common T6963C controller and standard 8-bit parallel interface makes it highly compatible with legacy systems designed around these components. However, it is crucial to verify mechanical mounting points, connector type, and the voltage requirements for the CCFL inverter to ensure seamless integration. If you have questions about a specific replacement, please contact our technical team for an expert consultation.
2. What are the primary considerations when driving the CCFL backlight?
The CCFL requires a separate high-voltage AC inverter, which is not integrated into the display module itself. Your design must include a dedicated inverter circuit that provides the necessary starting and operating voltage (typically several hundred volts). Key design factors include ensuring proper grounding, managing high-frequency noise to prevent EMI, and selecting an inverter rated for the specific current and voltage needs of the lamp in this module.
