DMF50262NB-FW | High-Contrast 240x64 Monochrome STN Display for Industrial Controls
The DMF50262NB-FW is an industry-proven 5.2-inch STN (Super-Twisted Nematic) monochrome graphic LCD module engineered for applications demanding unambiguous clarity, long-term reliability, and operational stability. It delivers a crisp 240x64 dot resolution, making it a premier choice for legacy system maintenance, retrofitting, and new designs where information density and readability take precedence over color imaging.
Key Product Highlights
- Exceptional Readability: Features a high-contrast FSTN (Film-compensated STN) display in a negative transmissive blue mode, ensuring sharp, clear characters and graphics that are easily legible under typical indoor industrial lighting.
- Integrated Controller: Simplifies system integration by including an onboard Toshiba T6963C controller (or compatible), which manages the display memory and character generation, offloading the host CPU.
- Robust Industrial Design: Built with a reliable CCFL (Cold Cathode Fluorescent Lamp) backlight, this module is designed for longevity and consistent performance in demanding environments like factory floors and control rooms.
- Standard Interface: Utilizes a common 8-bit parallel data interface, ensuring straightforward connectivity with a wide range of microcontrollers and embedded systems.
Technical Specifications at a Glance
For engineers requiring precise specifications for integration, the DMF50262NB-FW offers a standard-setting feature set. For the complete datasheet with pinouts, timing diagrams, and mechanical drawings, please contact our technical team.
| Parameter | Specification |
|---|---|
| Part Number | DMF50262NB-FW |
| Display Technology | STN (Super-Twisted Nematic) Graphic LCD |
| Display Mode | Negative, Transmissive Blue Mode |
| Resolution | 240 x 64 Dots |
| Active Area (W x H) | 132 x 39 mm |
| Module Dimensions (W x H x D) | 180 x 65 x 12.0 mm |
| Backlight | CCFL (Cold Cathode Fluorescent Lamp) |
| Controller IC | T6963C or Equivalent |
| Interface | 8-bit Parallel |
| Operating Temperature | 0°C to +50°C |
Deep Dive: The Engineering Value of STN Technology
While modern TFT-LCD technology dominates consumer electronics, the STN technology in the DMF50262NB-FW retains significant strategic advantages in industrial settings. Its fundamental principle relies on a greater twist angle (>180°) of liquid crystal molecules between two polarizers compared to older TN displays. This results in a steeper electro-optical response curve, which directly translates into a higher Contrast Ratio and wider viewing angles. For an operator monitoring a process controller or a technician reading diagnostic data, this means less eye strain and fewer reading errors. The "Blue Mode" negative display (light pixels on a dark blue background) is particularly effective at minimizing glare and enhancing perceived sharpness in controlled lighting environments.
Application Scenarios & Value Proposition
The specific feature set of the DMF50262NB-FW makes it an ideal and cost-effective solution for a range of specialized applications:
- Industrial Control Panels & HMIs: Perfect for displaying system status, menus, and soft key labels in CNC machines, PLCs, and process automation equipment where a simple, durable interface is critical. Its proven reliability ensures maximum uptime.
- Test & Measurement Equipment: In oscilloscopes, network analyzers, and power supply test units, this display provides a clear, no-frills graphical representation of waveforms, settings, and measurement values without the complexity and power draw of a full-color screen.
- Medical Devices: Suitable for patient monitors, infusion pumps, and diagnostic equipment that require a highly reliable, easy-to-read display for critical data. The STN technology is not susceptible to the image retention issues that can affect some display types.
- Point-of-Sale (POS) Systems: Serves effectively as a customer-facing or operator display, presenting transaction details with excellent clarity and a professional aesthetic.
Frequently Asked Questions (FAQ)
Is this model a suitable replacement for older Optrex or Tianma 240x64 displays?
Yes, the DMF50262NB-FW is designed with industry-standard mechanical dimensions and electrical interfaces. It serves as a form, fit, and function compatible replacement for many legacy 5.2-inch 240x64 graphic modules, including several models from Optrex, Kyocera, and Tianma. We recommend verifying the pinout and controller compatibility with your existing system's requirements. Our experts can assist in cross-referencing your current part number.
Why choose a CCFL backlight in an era of LEDs?
While LEDs are now common, CCFL backlights have a proven track record of very long operational lifetimes (often 50,000+ hours to half-brightness) and a stable, broad spectral output. For certified equipment or systems where re-qualifying a design with an LED backlight is cost-prohibitive, a CCFL-based module like this one provides a direct, reliable replacement, ensuring continuity and avoiding expensive redesigns. This is a crucial consideration for engineering for extremes and long-term product support.
Whether you are maintaining critical legacy systems or designing new equipment that values clarity and reliability over color, the DMF50262NB-FW stands as a robust and intelligent choice among industrial LCD displays.
