SP14Q009 | Robust 5.7" QVGA Monochrome Display for Critical Industrial HMIs
The SP14Q009 is an engineering-focused 5.7-inch monochrome QVGA display, engineered not for vibrant multimedia, but for absolute clarity and unwavering reliability in demanding industrial environments. In applications where data integrity, readability, and long-term operational stability are non-negotiable, this Film-compensated Super-twisted Nematic (F-STN) panel delivers exceptional performance. It stands as a critical component for new designs requiring high-contrast monochrome interfaces and serves as a vital, form-fit-function replacement for legacy systems, extending the life of valuable industrial equipment.
Key Technical Specifications
For engineers requiring precise data for system integration, the following parameters define the core capabilities of the SP14Q009. These specifications highlight its suitability for embedded control and instrumentation applications.
| Parameter | Specification |
|---|---|
| Screen Size | 5.7 inch (14.4 cm) diagonal |
| Resolution | 320 x 240 pixels (QVGA) |
| Display Technology | Film-compensated Super-twisted Nematic (F-STN) LCD |
| Display Mode | Transmissive, Negative Mode |
| Backlight System | Single Cold Cathode Fluorescent Lamp (CCFL) |
| Outline Dimensions (WxHxD) | 167.0 x 109.0 x 10.0 mm |
| Active Area (WxH) | 115.17 x 86.37 mm |
| Interface | 4-bit Parallel Data |
| Operating Temperature | 0°C to +50°C |
Note: For complete mechanical and electrical specifications, please refer to the official component datasheet. The linked document for the SP14Q002-A1 offers similar characteristics; for the definitive SP14Q009 datasheet, please contact our technical team. [Download a reference datasheet for the similar SP14Q002 model here]
Application Scenarios & Engineering Value
The value of the SP14Q009 is most evident in applications where function dictates form. Its design directly addresses the pain points of specific industrial and specialized fields:
- Industrial Process Controllers & PLCs: The high-contrast black-and-white display provides an unambiguous view of critical process variables, ladder logic diagrams, and system alarms. This clarity minimizes operator error in high-stakes manufacturing environments.
- Medical and Laboratory Instruments: In devices like analytical equipment or patient monitors, data must be presented without distraction. The SP14Q009's stable, clear output is ideal for products with long development cycles and strict regulatory oversight.
- Test & Measurement Equipment: For benchtop oscilloscopes, function generators, and network analyzers, this display offers the sharpness required to accurately represent waveforms and complex numerical readouts, a core function of many industrial LCD displays.
- Legacy Equipment Maintenance: Many high-value industrial machines were designed with this exact display footprint and interface. The SP14Q009 serves as a reliable drop-in replacement, preventing costly system redesigns and extending the operational life of critical infrastructure.
Technical Deep Dive: The Engineering Behind the Reliability
Two core technologies define the SP14Q009's performance profile: its display chemistry and its illumination method.
First, the use of Film-compensated STN (F-STN) technology is a deliberate engineering choice. Unlike more basic STN displays that can exhibit a blue or yellow color cast, the F-STN architecture incorporates a retardation film layer. This film optically corrects the phase shift of light passing through the liquid crystals, effectively neutralizing the inherent coloration. The direct result is a true black-and-white display with a significantly higher contrast ratio and wider viewing cone, making it exceptionally readable from various angles on a factory floor.
Second, the integrated Cold Cathode Fluorescent Lamp (CCFL) backlight was the gold standard for robust, long-life illumination before the widespread adoption of LEDs. Engineered for tens of thousands of hours of operation, the key advantage in an industrial context is often its maintainability. In many designs utilizing this module, the CCFL lamp is a replaceable component, a critical factor for long-term industrial display maintenance and reducing the total cost of ownership.
Frequently Asked Engineering Questions
Is the SP14Q009 a suitable replacement for an older monochrome display in my machine?
Given its adherence to the industry-standard 5.7-inch QVGA form factor and parallel data interface, it is a very strong candidate for retrofitting legacy equipment. The most critical step is to verify the mounting hole pattern and the specific pinout of the data connector against your existing system. We highly recommend consulting the datasheet and comparing it with your current display's documentation. Our technical team can assist in this verification process.
Why would I choose this monochrome CCFL display over a modern color TFT panel?
The decision is application-driven. For interfaces designed to convey critical data (e.g., pressure, temperature, RPM), a high-contrast monochrome display offers superior, unambiguous readability and eliminates potential confusion from color-coding. From an integration standpoint, if your host system was designed to power a CCFL inverter and send 4-bit parallel data, the SP14Q009 is a direct-fit solution, avoiding the significant engineering effort required to redesign the system's power supply, control board, and software drivers for a modern TFT.
