Content last revised on November 20, 2025
Kyocera KCS057QV1AJ-G32: Engineering-Grade 5.7-inch QVGA Display for Industrial HMIs
Introduction to a Legacy of Reliability
The Kyocera KCS057QV1AJ-G32 is a 5.7-inch CSTN-LCD engineered for sustained performance in demanding industrial environments. Delivering proven reliability and clear visual output, this display is built for applications where operational longevity and consistent readability are paramount. Key specifications include a 320x240 QVGA resolution, 200 cd/m² brightness, and a robust CCFL backlight system with a typical 40,000-hour lifespan. This model provides a dependable HMI solution with its straightforward 8-bit parallel data interface and standard 5.0V input voltage. What is the primary benefit of its CCFL backlight? A long, proven operational life, minimizing the need for frequent replacements in critical systems. For industrial control panels requiring a compact, no-frills display with a track record of stability, the KCS057QV1AJ-G32 offers a well-engineered and cost-effective solution.
Application Scenarios & Value
System-Level Benefits in Legacy and New Industrial Controls
The KCS057QV1AJ-G32 is optimally suited for human-machine interface (HMI) panels, process control instrumentation, and specialized test equipment where functional clarity is more critical than high-definition video. In a factory floor setting, for instance, an engineer designing a PLC monitoring terminal faces the challenge of sourcing a display that is both electrically compatible with established control hardware and mechanically robust enough to withstand ambient vibration and temperature shifts. The KCS057QV1AJ-G32 directly addresses this with its 8-bit parallel data interface, a common standard in industrial automation that simplifies integration without requiring complex signal conversion. Its specified operating temperature range ensures consistent performance, preventing the display quality degradation that can occur with less rugged panels. This focus on fundamental reliability makes it an excellent choice for systems where uptime is the primary engineering goal. For applications demanding a different form factor or higher resolution, the KCG075VG2BH-G00 offers a larger 7.5-inch VGA display within a similar operational framework.
Key Parameter Overview
Decoding the Specs for Functional Integration
The specifications of the Kyocera KCS057QV1AJ-G32 are tailored for straightforward integration and reliable visual performance in industrial applications. The parameters highlighted below are critical for system designers and procurement specialists evaluating this display for their specific needs.
| Parameter | Specification | Engineering Significance |
|---|---|---|
| Display Technology | 5.7-inch CSTN-LCD, Normally Black | Color Super-Twisted Nematic (CSTN) technology provides a cost-effective solution for displaying graphical user interfaces and status indicators with good color representation. |
| Resolution | 320(RGB) × 240 (QVGA) | Offers sufficient pixel density for clear readouts of numerical data, text-based menus, and basic process diagrams common in industrial controllers. |
| Brightness | 200 cd/m² (Typical) | Provides adequate luminance for typical indoor industrial environments, ensuring readability under standard factory lighting conditions. |
| Backlight System | Single CCFL, Replaceable, 40k Hours (Typ.) | The Cold Cathode Fluorescent Lamp offers a proven, long-life light source. Its replaceability is a key feature for extending the service life of the end equipment. |
| Signal Interface | Parallel Data (8-bit) | Ensures broad compatibility with a wide range of microcontrollers and industrial chipsets, simplifying the electrical design and reducing development time. |
| Operating Temperature | 0°C to 50°C | Designed to operate reliably within the controlled environments of most manufacturing plants, control rooms, and laboratories. |
| Outline Dimensions | 154.6 × 114.8 × 8.5 mm | A compact footprint suitable for integration into space-constrained enclosures and standard instrument panels. |
For complete electrical and optical characteristics, performance curves, and mechanical drawings, please refer to the official documentation.
Download the KCS057QV1AJ-G32 datasheet for detailed specifications and performance curves.
Frequently Asked Questions (FAQ)
What is the significance of the STN (Super-Twisted Nematic) display mode?
STN is a mature liquid crystal display technology known for its cost-effectiveness and low power consumption compared to TFT-LCD technology. For the KCS057QV1AJ-G32, this translates to a reliable and economical display solution for interfaces where rapid response times are not a critical requirement, such as static data displays or menu systems.
How does the 40:1 contrast ratio impact usability in an industrial setting?
A 40:1 contrast ratio provides a clear distinction between light and dark pixels, which is sufficient for the intended applications of text and simple graphic display. Think of it as the difference between black text on a white page in a well-lit office; it's perfectly legible for reading data and status messages on a control panel.
Is an external inverter required for the CCFL backlight?
Yes, the CCFL backlight system requires a separate inverter to provide the high voltage necessary for its operation. The datasheet recommends compatible inverter models, ensuring that system designers can source appropriate components for a stable and long-lasting backlight solution.
What does the 8-bit parallel interface mean for system integration?
An 8-bit parallel interface allows for direct connection to the data bus of many common microcontrollers. This simplifies the hardware design and software programming, as data for the display can be written directly without the need for complex serial-to-parallel converter ICs or specialized graphics controllers often required by higher-resolution displays.
