Content last revised on November 21, 2025
TCG075VGLDA-G50: A Robust 7.5” VGA Display for High-Clarity Industrial Interfaces
Engineering-Grade Visuals for Demanding Environments
The Kyocera TCG075VGLDA-G50 is a 7.5-inch a-Si TFT-LCD module designed to deliver consistent, high-quality visuals in environments where standard displays falter. It provides a robust foundation for building reliable Human-Machine Interfaces (HMIs) and monitoring systems. With key specifications of 7.5-inch | 640x480 VGA | 400 cd/m² Brightness | -20°C to +70°C Operating Temperature, this display is engineered for longevity and clarity. Its primary engineering benefits are excellent image stability across wide viewing angles and dependable performance in fluctuating industrial temperatures. This display directly addresses the need for a field-serviceable screen that maintains readability without specialized environmental controls. For industrial systems requiring clear, reliable VGA-resolution data visualization in challenging indoor or cab environments, the TCG075VGLDA-G50 offers a well-balanced performance profile.
Application Scenarios & Value
Delivering Readability and Reliability in Industrial Control and Instrumentation
The TCG075VGLDA-G50 is optimized for applications where data integrity and clear visualization are paramount. A prime engineering scenario is its integration into a control panel for a factory automation line or a diagnostic monitor on mobile agricultural equipment. In these settings, operators often view the screen from off-center angles while machinery is active. The display's symmetrical 80/80/80/80 viewing angles ensure that critical data, warnings, and schematics remain clear and color-accurate without distortion, reducing the risk of operator error. This is a significant advantage over displays where color shift at angles can lead to misinterpretation. The TN, Normally White mode ensures a fail-safe state where the screen is transparent if power is lost, which can be a specified requirement in certain industrial systems. While the TCG075VGLDA-G50 is ideal for these VGA-resolution applications, for systems that require a different form factor or touch integration, the related KCG075VG2BH-G00 offers alternative design pathways.
Key Parameter Overview
Specifications Translated to Engineering Value
The technical specifications of the Kyocera TCG075VGLDA-G50 are foundational to its performance in real-world applications. Understanding these numbers is key to leveraging the display's full potential in system design.
| Parameter | Value | Engineering Significance |
|---|---|---|
| Screen Size | 7.5 inches | Provides a compact yet sufficient active area for displaying critical operational data, soft keys, and diagnostics without occupying excessive panel space. |
| Resolution | 640(RGB)×480 (VGA) | A standard resolution widely supported by industrial controllers and single-board computers, simplifying system integration and software development for legacy and new systems. |
| Brightness | 400 cd/m² (Typ.) | Delivers strong readability for indoor industrial environments and enclosed vehicle cabs, ensuring clarity under typical factory or overhead lighting. |
| Contrast Ratio | 500:1 (Typ.) | Ensures sharp differentiation between blacks and whites, which is critical for legibility of fine text and complex graphics. A high contrast ratio is like writing in bold black ink on white paper, making information quick and easy to process. |
| Viewing Angle (L/R/U/D) | 80/80/80/80 (Typ.) | Offers consistent image quality from a very wide range of perspectives, a vital feature for HMIs on large machinery where the operator may not be directly in front of the screen. |
| Operating Temperature | -20°C to +70°C | Guarantees reliable operation in a wide range of industrial settings, from refrigerated warehouses to non-climate-controlled factory floors, reducing the need for external heating or cooling. |
| Backlight Lifetime | 50,000 Hours (Typ.) | The WLED backlight provides a long operational life, translating to lower maintenance requirements and a better total cost of ownership (TCO) over the product's lifecycle. |
Download the TCG075VGLDA-G50 datasheet for detailed specifications and performance curves.
Technical Deep Dive
Design Considerations for Integration and Longevity
Integrating the Kyocera TCG075VGLDA-G50 effectively requires attention to its core design attributes. The module utilizes an a-Si TFT (Amorphous Silicon) active matrix, a mature technology known for its reliability and cost-effectiveness in industrial applications. The display's Parallel RGB (1 ch, 6-bit) interface is a standard in the industry, offering straightforward connection to a wide array of display controllers and processors. What is the primary benefit of this interface? Its simplicity reduces design complexity and EMI (Electromagnetic Interference) risks compared to higher-speed serial interfaces, a key consideration in electrically noisy factory environments.
The specified operating temperature range of -20°C to 70°C is a critical parameter for designers of ruggedized equipment. This range functions like an "all-weather" operational guarantee for the display panel itself. While a consumer-grade display might fail or exhibit severe performance degradation at these temperatures, the TCG075VGLDA-G50 is built to maintain optical performance, from cold starts in a vehicle left overnight to sustained operation in a warm, enclosed panel. This robustness allows engineers to simplify thermal management system design, potentially reducing cost and size by eliminating the need for dedicated heaters or fans for the display module. This is a core element in designing for low-maintenance, high-reliability systems like those found in heavy machinery and industrial automation.
Frequently Asked Questions (FAQ)
What makes the TCG075VGLDA-G50 suitable for industrial HMI applications?
Its combination of a wide operating temperature range (-20°C to 70°C), long-life WLED backlight (50k hours), and consistent wide viewing angles makes it a reliable choice for environments where durability and consistent readability are non-negotiable.
How do the 80/80/80/80 viewing angles impact usability?
These symmetrical angles ensure that contrast and color remain stable even when the screen is viewed from significantly off-center positions. This is crucial for operator safety and efficiency in applications where the user may be moving or unable to face the display directly.
What is the engineering advantage of a 500:1 contrast ratio?
A 500:1 contrast ratio provides a clear distinction between light and dark content on the screen. This ensures that text, graphical elements, and numerical data are sharp and easy to read, reducing eye strain and the potential for misinterpretation, especially with complex user interfaces.
Does this display module include a backlight driver?
No, the TCG075VGLDA-G50 is supplied with a built-in WLED backlight but requires an external constant current driver. This gives engineers the flexibility to select a driver that best fits their system's power architecture and dimming requirements.
Is the glare surface treatment a concern in brightly lit areas?
The glare surface provides the highest possible contrast and color saturation. While it can reflect direct light sources, the display's 400-nit brightness helps to overpower most ambient indoor industrial lighting, maintaining readability. For applications in direct sunlight, an anti-glare cover glass or a higher-brightness model may be considered. For more insights on this topic, explore this guide to sunlight readable HMIs.
From an engineering standpoint, the TCG075VGLDA-G50 is a component that de-risks the design of industrial user interfaces. Its specifications are not just numbers on a page; they represent built-in resilience against common field failures like temperature-induced lag or backlight burnout. Selecting this display allows a design team to focus on software and system-level features, confident that the visual interface is built on a solid, reliable, and well-documented foundation provided by a trusted manufacturer like Tianma and its peers in the industrial display space.
