DMF-50773NF-FW | 240x64 FSTN Monochrome Graphic LCD Module
Engineered for longevity in industrial applications, the Optrex DMF-50773NF-FW provides exceptional clarity and proven reliability for legacy system support and new designs. Its robust construction ensures stable performance where consistent data presentation is crucial.
Top Specs: 240x64 Resolution | 0°C to +50°C Op. Temp | FSTN Negative Display. Key Benefits: High-contrast readability, proven long-life CCFL backlight. For engineers maintaining long-serving industrial equipment, the DMF-50773NF-FW offers a form-fit-function solution, mitigating the need for costly system redesigns by preserving the original HMI specifications and mechanical footprint.
Strategic Advantages in Demanding Environments
In an era of rapid technological turnover, maintaining the operational integrity of capital-intensive industrial equipment presents a significant engineering challenge. The availability of components like the Optrex DMF-50773NF-FW is critical for extending the lifecycle of systems in factory automation, process control, and test and measurement. This display module serves as a vital component for Maintenance, Repair, and Operations (MRO), ensuring that proven, reliable machinery continues to deliver value. Its design prioritizes durability and consistent performance over time, a key consideration for industries where equipment validation and stability are paramount.
Datasheet-Driven Comparison for System Evaluation
To support your component evaluation process, this section provides a factual comparison based on typical display technologies. The data presented is intended to inform your design and maintenance decisions by highlighting key performance trade-offs.
| Parameter | DMF-50773NF-FW (CCFL Backlight) | Typical Modern Equivalent (LED Backlight) | Engineering Implication |
|---|---|---|---|
| Backlight Driving Voltage | High Voltage AC (Inverter Required) | Low Voltage DC | The DMF-50773NF-FW is designed for systems with an existing CCFL inverter; retrofitting may require power supply adjustments. |
| Backlight Lifespan | Typically 20k-50k hours to half-brightness | Typically 50k-100k hours to half-brightness | While LED backlights may offer a longer rated life, the CCFL in this module is a field-proven technology with predictable performance characteristics. |
| Operating Temperature | 0°C to +50°C | Often -20°C to +70°C | This module is specified for standard industrial indoor environments. For systems requiring a wider temperature range, the G057VN01 V2 may present different characteristics. |
Core Specifications for the DMF-50773NF-FW
All technical data is derived from the official manufacturer's datasheet. For complete details, please download the full specification document.
| Functional Group: Display Characteristics | |
|---|---|
| Display Type | FSTN (Film Compensated STN) LCD |
| Display Mode | Negative, Transmissive |
| Resolution | 240 x 64 Dots |
| Dot Size / Dot Pitch | 0.49 x 0.49 mm / 0.53 x 0.53 mm |
| Viewing Area | 132.0 x 39.0 mm |
| Contrast Ratio (Typ.) | 6:1 |
| Functional Group: Electrical & Mechanical Specifications | |
|---|---|
| Supply Voltage for Logic (VDD) | +5.0V ±5% |
| Backlight | CCFL (Cold Cathode Fluorescent Lamp) |
| Outline Dimensions | 180.0(W) x 65.0(H) x 11.0(D) max mm |
| Weight | 140g (Typ.) |
| Functional Group: Environmental Ratings | |
|---|---|
| Operating Temperature Range | 0°C to +50°C |
| Storage Temperature Range | -20°C to +60°C |
Interpreting Key Parameters
Operating Temperature Range (0°C to +50°C): This range defines the ambient temperatures within which the display will perform to specification. It ensures reliable operation in most indoor industrial settings, such as control rooms, manufacturing floors, and laboratory environments, without requiring specialized heating or cooling.
Contrast Ratio (6:1): The contrast ratio is the measure of the difference between the brightest white and the darkest black the screen can produce. Think of it like the clarity of a road sign in fog. A higher ratio means the sign is easier to read. For a monochrome display, a 6:1 ratio, enabled by its FSTN technology, provides crisp and unambiguous character and graphic display, which is essential for reducing operator error when reading critical data. What is the benefit of FSTN technology? It provides superior clarity and wider viewing angles compared to older STN displays.
A Closer Look at the Display's Construction
The DMF-50773NF-FW is built upon a foundation of Film Compensated Super-Twisted Nematic (FSTN) passive-matrix display technology. This construction adds a retardation film to the STN cell, which compensates for color dispersion and results in a high-contrast monochrome image (black and white) rather than the blue/yellow of standard STN. This architectural choice is deliberate, targeting applications where immediate and error-free readability of complex information is a priority. The illumination is provided by a Cold Cathode Fluorescent Lamp (CCFL) backlight, a mature technology known for its bright, even light distribution and stable performance over a long operational lifespan, a key requirement for displays embedded in equipment designed for years of service.
Deployment Scenarios: Where Resilience Matters
The specific combination of features in the DMF-50773NF-FW makes it well-suited for a range of established industrial and commercial equipment. Its proven design ensures it can be confidently integrated into systems where reliability is a primary consideration.
- Industrial Control Panels: Providing clear readouts for PLCs, CNC machines, and automation controllers.
- Test and Measurement Equipment: Serving as the primary user interface for oscilloscopes, spectrum analyzers, and other benchtop instruments.
- Medical Diagnostic Devices: Offering stable, legible displays for patient monitoring systems and laboratory equipment where data integrity is paramount.
- Point-of-Sale (POS) Systems: Used in legacy POS terminals and specialized retail hardware for operator feedback.
For systems operating within a 0-50°C range that require a 240x64 display with a parallel interface, the DMF-50773NF-FW is an optimal component for maintaining system validity without re-engineering. What is a key advantage of its CCFL backlight? It provides consistent and uniform brightness, vital for long-term HMI readability.
Frequently Asked Questions
1. What are the interface and controller details for the DMF-50773NF-FW?
The datasheet specifies a parallel data interface. The module includes an onboard T6963C controller, which is a very common controller for graphic LCDs. This simplifies integration as the T6963C handles tasks like RAM management and character generation, reducing the processing load on the host microcontroller. Familiarity with this controller is widespread, aiding in both new designs and legacy system repairs.
2. How does the FSTN technology in this module improve upon standard STN displays?
FSTN (Film Compensated STN) technology directly addresses the primary limitations of earlier STN displays: viewing angle and contrast. By adding a polymer film layer between the STN glass and the polarizer, FSTN neutralizes color shift and significantly enhances contrast. The result is a true black-and-white display with sharp, clear pixels, making it far easier to read from different angles—a crucial benefit for HMIs on factory floors where operators may not always be directly in front of the screen. You can learn more about display technologies in our guide to TFT-LCDs.
To evaluate if the DMF-50773NF-FW is the right fit for your application, or to inquire about our portfolio of display solutions, please contact our technical support team for detailed information.
