Content last revised on November 29, 2025
KCG057QV1DB-G90: A Deep Dive into Kyocera's Industrial-Grade 5.7" QVGA Display
The Kyocera KCG057QV1DB-G90 is a color STN LCD module engineered for robust performance in industrial applications. It delivers a specification set focused on reliability and clear visual output, featuring a 5.7-inch diagonal size, 320x240 QVGA resolution, a typical brightness of 350 cd/m², and a wide operating temperature range from -20°C to 70°C. Key benefits include long-term operational stability and consistent readability in challenging factory and field environments. This display addresses the critical need for a durable human-machine interface (HMI) that can withstand significant thermal stress and demanding operational cycles. For system designs requiring a balance of compact size and proven resilience, the KCG057QV1DB-G90 provides a reliable, long-life display solution.
Application Scenarios & Value
Delivering Readability and Resilience in Demanding Industrial Environments
For industrial designers and system integrators, the true value of a display is measured by its performance under real-world stress. The KCG057QV1DB-G90 is optimized for environments where consumer-grade displays falter. Its 5.7-inch form factor is a common standard for panel-mount HMI (Human-Machine Interface) units, test and measurement equipment, and medical instrumentation, simplifying physical integration.
Consider its use in a factory floor control panel. The specified operating temperature range of -20°C to 70°C ensures that the display remains operational and readable from a cold morning start-up to the peak heat of an enclosed, non-ventilated cabinet. This thermal resilience is a critical engineering advantage, preventing screen failure and costly downtime. The 350 cd/m² brightness, combined with a 55:1 contrast ratio, provides the necessary clarity for operators to accurately read critical process data and alarms in typical indoor industrial lighting. While this model provides excellent performance, for applications that may require different specifications, the related KCG057QV1DB-G000 is also part of Kyocera's portfolio.
Key Parameter Overview
A Functional Breakdown of Core Specifications
The KCG057QV1DB-G90's specifications are tailored for longevity and straightforward integration. The selection of a Cold Cathode Fluorescent Lamp (CCFL) backlight is a notable feature, providing a typical lifespan of 75,000 hours, which translates to years of continuous operation and a lower total cost of ownership. An understanding of its key parameters is essential for design evaluation.
облака350 cd/m²
| Feature | Specification |
|---|---|
| Display Type | STN Color LCD, Normally Black, Transmissive |
| Screen Size | 5.7 inches (14.5 cm) |
| Resolution | 320 x 240 pixels (QVGA) |
| Pixel Format | RGB Vertical Stripe |
| Typical Brightness | |
| Contrast Ratio | 55:1 (Typ.) |
| Viewing Angle (CR≥2) | 50°(L) / 50°(R) / 20°(U) / 35°(D) |
| Interface | Parallel Data (8-bit), 20 pins |
| Backlight | CCFL, 75,000 hours (Typ.) |
| Operating Temperature | -20°C to 70°C |
| Storage Temperature | -20°C to 70°C |
| Outline Dimensions | 144.0 x 104.8 x 13.2 mm |
Frequently Asked Questions (FAQ)
What is the primary benefit of the STN (Super-Twisted Nematic) technology in this display?
STN technology is a mature and cost-effective solution known for its reliability and low power consumption, making it a dependable choice for industrial applications where displaying critical data is prioritized over high-fidelity video performance. Its proven track record ensures stable, long-term supply chains.
How does the -20°C to 70°C operating temperature impact system design?
This wide operating range allows the KCG057QV1DB-G90 to be deployed in environments without climate control, such as outdoor kiosks, unheated warehouses, or in vehicle cabins. It reduces the need for auxiliary heating or cooling components, simplifying the overall system design and lowering bill-of-materials costs.
Is the CCFL backlight replaceable?
The datasheet specifies a 75,000-hour typical lifespan for the CCFL backlight, which is designed for long-term, maintenance-free operation. While CCFL tubes are generally replaceable components, the process often requires specialized service. The long life is intended to match or exceed the operational life of the host equipment. For more on modern backlighting, see this guide on LED backlight energy efficiency.
For engineering teams looking to procure a robust and reliable display solution, the KCG057QV1DB-G90 offers a proven platform. To evaluate this display for your specific application, contact our technical sales team for further information and quoting.
