The Kyocera KG057QV1CA-G020 is a 5.7-inch STN-LCD module designed for monochrome display applications where clear visibility, power efficiency, and long operational life are essential. This module offers a QVGA resolution of 320 × 240 pixels with a 70 PPI pixel density, delivering crisp text and graphics well-suited for industrial user interfaces, diagnostics systems, and embedded control panels.
With an active display area of 115.18 × 86.38 mm, this LCD balances screen real estate with compact mechanical dimensions. It delivers a luminance of 260 cd/m², offering sufficient brightness for indoor and shaded environments. While the 4:1 contrast ratio is modest compared to modern TFT displays, it provides adequate clarity for monochrome applications, particularly in controlled lighting environments.
The viewing angles are rated at 45° left/right, 20° up, and 40° down (CR ≥ 2), allowing for moderate off-axis readability. These angles make the display suitable for fixed installations where users primarily view the panel head-on. It is most effective in applications that do not require frequent repositioning or multi-angle viewing.
The panel operates in STN (Super Twisted Nematic) Blue Mode (Negative), Transmissive, displaying light characters on a dark background. This mode offers low power consumption, reduced eye strain in dark environments, and enhanced readability in many industrial use cases.
Response time is 380 ms (rise) and 120 ms (fall), making it suitable for displaying static or slow-changing content. The display is not intended for dynamic video or motion-heavy interfaces, but performs reliably for status indicators, logs, and menus.
The backlight system consists of a single CCFL tube with an estimated 58,000 hours of lifespan, providing long-lasting illumination. Note that this module does not include a built-in CCFL driver, requiring external driver circuitry for backlight control. It supports a dual-voltage input of 3.3V or 5.0V, ensuring compatibility across a wide range of embedded system architectures.
The module operates reliably in temperatures from 0°C to 60°C, and it can be stored at temperatures as low as -20°C, making it durable enough for many industrial and embedded environments with moderate thermal demands.
