Content last revised on November 21, 2025
The LQ104V1DG62: A 10.4-Inch VGA Display Engineered for Demanding Industrial Environments
Introduction to a High-Performance Industrial Display
Delivering Visual Clarity and Operational Endurance for Critical HMI Systems
The Sharp LQ104V1DG62 is a 10.4-inch a-Si TFT-LCD module engineered for exceptional visual performance and long-term reliability in demanding industrial applications. It delivers a high-brightness, high-contrast image critical for human-machine interfaces (HMIs), process control systems, and transportation displays. With key specifications of 640x480 VGA Resolution | 550 cd/m² Brightness | -30 to +80 °C Operating Temperature, this display provides robust performance and excellent image quality. Its wide operating temperature range ensures consistent operation in environments where commercial-grade displays would fail. For applications requiring a different resolution or interface, the related LQ104V1LG61 offers an alternative set of specifications. Best fit for industrial HMIs and control panels that require high brightness and operational resilience across extreme temperatures.
Application Scenarios & Value
System-Level Benefits in High-Ambient-Light and Temperature-Varying Conditions
The LQ104V1DG62 is engineered to solve a common challenge for system integrators: maintaining screen legibility and operational stability in environments with fluctuating temperatures and high ambient light. Its defining feature is the combination of a high brightness of 550 cd/m² and an exceptionally wide operating temperature range of -30 to +80°C. Consider a CNC machine controller on a factory floor that is not climate-controlled. In the winter, temperatures can drop near freezing, and in the summer, rise significantly, while intense overhead lighting is always present. The LQ104V1DG62's ability to function reliably from -30°C to +80°C without compromising its 550-nit brightness ensures that operators can clearly read critical machine data and inputs, minimizing errors and maintaining productivity regardless of the ambient conditions. This resilience reduces the need for external heating or cooling systems for the display, simplifying enclosure design and lowering the total cost of ownership for the machine builder.
Key Parameter Overview
Decoding the Specifications for Enhanced System Reliability
The technical specifications of the Sharp LQ104V1DG62 underscore its suitability for industrial-grade systems. The combination of its optical performance and environmental robustness provides a solid foundation for designing reliable and effective user interfaces.
| Parameter | Specification | Engineering Value |
|---|---|---|
| Display Size | 10.4 inch | Provides a substantial viewing area for complex data and graphical interfaces without consuming excessive space in a control panel. |
| Resolution | 640(RGB)×480 [VGA] | Offers a standard resolution well-suited for industrial control software, ensuring broad compatibility with existing HMI applications. |
| Brightness | 550 cd/m² (Typ.) | Delivers high luminosity, ensuring screen content remains clear and readable even in brightly lit factory floors or outdoor-covered areas. |
| Contrast Ratio | 600:1 (Typ.) | Ensures deep blacks and bright whites, enhancing image clarity and making graphical elements and text distinct and easy to interpret. |
| Operating Temperature | -30 ~ 80 °C | Guarantees reliable performance in unconditioned environments, from cold storage facilities to hot manufacturing settings, eliminating the need for specialized thermal management. |
| Backlight Technology | White LED | Provides energy-efficient illumination with a long operational life, contributing to lower power consumption and maintenance requirements. |
| Signal Interface | Parallel RGB (1 ch, 6-bit) | A straightforward and widely supported interface that simplifies integration with a variety of industrial motherboards and single-board computers. |
Download the LQ104V1DG62 datasheet for detailed specifications and performance curves.
Technical Deep Dive
A Closer Look at the Wide Operating Temperature Range for Field Reliability
The -30 to +80°C operating temperature range of the LQ104V1DG62 is not just a number; it's a critical design feature that directly impacts system reliability and deployment flexibility. What does this range mean in practice? It signifies that the liquid crystal fluid, TFTs, and electronic components have been specified to maintain their physical properties and electrical performance across a 110°C delta. At the low end (-30°C), the liquid crystal viscosity is managed to prevent slow response times (ghosting), a common failure point for standard displays. At the high end (+80°C), the materials are chosen to resist degradation, ensuring the display does not suffer from blackouts or permanent damage. This is akin to the difference between an all-season tire and a summer tire; while the summer tire offers great performance in ideal conditions, the all-season tire is engineered to provide safe and reliable operation across a much broader spectrum of environmental challenges, directly enhancing the equipment's operational uptime.
Frequently Asked Questions (FAQ)
What is the primary benefit of the 550 cd/m² brightness?
Its high brightness ensures excellent readability in industrial settings with high ambient lighting, reducing operator eye strain and minimizing errors when reading critical data.
How does the -30 to +80°C operating temperature impact system design?
This wide range allows the display to be integrated into systems deployed in harsh, non-climate-controlled environments without requiring additional, costly heating or cooling components, thereby simplifying the mechanical design and improving overall system reliability.
Strategic Integration
The design philosophy of the LQ104V1DG62 centers on providing a display solution that is both high-performing and inherently rugged. By specifying components that can withstand extreme temperatures and delivering high brightness for visibility, this module addresses two of the most significant challenges in industrial HMI design. This allows engineers to focus on application-level development with confidence that the user interface will remain stable and legible across the intended operational environments. This strategic focus on environmental resilience makes the Sharp LQ104V1DG62 a valuable component for manufacturers of industrial machinery, automation systems, and specialized vehicles where uptime and reliability are paramount.
