Sharp LQ084S3DG01 LCD Display

LQ084S3DG01 | 8.4" SVGA TFT LCD for Extreme Temperatures (-30 to +80°C)

An Engineering Breakdown of the Sharp LQ084S3DG01

The Sharp LQ084S3DG01 is an 8.4-inch SVGA TFT-LCD module engineered for exceptional reliability and visual clarity across an extremely wide -30°C to +80°C operating temperature range. This display integrates a robust design with essential performance characteristics to meet the stringent demands of industrial and specialized vehicle applications. What is the primary benefit of the LQ084S3DG01's design? Its ability to operate reliably in extreme temperatures (-30°C to +80°C). With key specifications of 8.4-inch SVGA (800x600) | 350 cd/m² Brightness | -30 to +80°C Operating Temperature, it provides superior environmental resilience and clear visuals in high ambient light. For industrial HMI or in-vehicle systems requiring steadfast performance in unconditioned environments, the LQ084S3DG01 is the definitive choice.

Key Parameter Overview

Decoding the Specs for Environmental Resilience and Performance

The technical specifications of the LQ084S3DG01 are foundational to its performance in challenging applications. The parameters below have been selected to provide engineers and procurement managers with a clear overview of its capabilities.

Download the LQ084S3DG01 datasheet for detailed specifications and performance curves.

Application Scenarios & Value

System-Level Benefits in Demanding Industrial and Automotive Environments

The Sharp LQ084S3DG01 is engineered specifically for applications where temperature fluctuation, shock, and vibration are standard operating conditions. Its value extends beyond its specifications to the tangible system-level benefits it provides in demanding industrial environments.

Consider the design challenge of a Human-Machine Interface (HMI) for a cold storage logistics vehicle or an outdoor ticketing kiosk. These systems face sub-zero temperatures in winter and high heat under direct sun. The LQ084S3DG01's expansive -30°C to +80°C operational window directly solves this problem by eliminating the need for costly and complex auxiliary heating or cooling systems. This not only reduces the bill of materials (BOM) and power consumption but also removes potential points of failure, leading to a more robust and reliable end product. The anti-reflection surface treatment ensures that critical data from a PLC or control system remains readable for operators, even under the challenging glare of warehouse lighting or indirect sunlight, enhancing both efficiency and safety. Is the LQ084S3DG01 suitable for outdoor use? Its 350-nit brightness and anti-glare finish make it readable in high ambient light.

While the LQ084S3DG01 is optimized for SVGA systems, for applications requiring a more compact VGA interface, the related LQ064V3DG06 presents a viable alternative.

Technical Deep Dive

A Closer Look at the Construction for Wide-Temperature Operation

The ability of the Sharp LQ084S3DG01 to function across a 110°C temperature delta is not accidental; it is a direct result of its specific design and material selection. The liquid crystal fluid used is formulated to maintain its viscosity and responsiveness at low temperatures, preventing the sluggish pixel response or "ghosting" that can plague standard displays. At the upper end, the materials are chosen to resist degradation, ensuring that the display's contrast and color fidelity do not permanently decline after exposure to high operational heat.

The display’s 320:1 contrast ratio is a critical parameter for industrial usability. A contrast ratio of 320:1 means the brightest white is 320 times more luminous than the darkest black. Think of it as the display's dynamic range; a higher ratio allows for finer grayscale details, which is crucial for viewing complex schematics or camera feeds on a control panel. This ensures that subtle visual cues in a graphical user interface are not lost, leading to more accurate operator interaction.

Industry Insights & Strategic Advantage

Meeting the Demand for Rugged HMIs in Modern Industrial Systems

The trajectory of Industrial Automation and the Industrial Internet of Things (IIoT) involves deploying more sophisticated control and monitoring equipment directly onto the factory floor, in mobile machinery, and in outdoor installations. This trend places a premium on components that are inherently rugged. The LQ084S3DG01 directly supports this by providing a reliable visual interface that can be integrated into systems without concern for ambient temperature. Its robustness helps designers create equipment that can achieve higher NEMA or IP ratings for environmental protection, offering a competitive advantage in the market for heavy-duty industrial electronics.

Understanding viewing angle is key to proper HMI design. A viewing angle of 80°/80°/45°/80° (L/R/U/D) is like the cone of light from a flashlight. Within that cone, the image remains clear and colors are accurate. Outside of it, the image can wash out or colors can shift. For an HMI that may be viewed by operators standing at different positions relative to the machine, specifying a display like the LQ084S3DG01 with known viewing characteristics ensures that critical data is always read accurately, regardless of the operator's posture or location.

Frequently Asked Questions (FAQ)

Engineering Inquiries on Integration and Long-Term Reliability

How does the -30°C to +80°C operating temperature of the LQ084S3DG01 impact overall system design and cost?

This wide operating range can significantly reduce system cost and complexity. It eliminates the need for dedicated heating elements, cooling fans, or complex thermal management solutions that are often required for displays with a standard 0°C to 50°C range. This results in a smaller design footprint, lower power consumption, and increased system reliability by reducing the number of failure points.

What is the significance of the 350 cd/m² brightness for an industrial display?

A brightness of 350 cd/m² (or nits) provides excellent readability in a majority of indoor industrial settings, such as factory floors, control rooms, and vehicle cabins where ambient light is present but not direct sunlight. Combined with its anti-reflection surface, it ensures that data is clearly visible to operators without causing eye strain.

Is an external backlight inverter required for the LQ084S3DG01?

Yes, the display utilizes a Cold Cathode Fluorescent Lamp (CCFL) backlight system which requires a separate, external inverter to supply the necessary high voltage. The datasheet provides specifications for the inverter interface to aid in component selection and system integration.

How does the SVGA (800x600) resolution benefit legacy system upgrades?

SVGA is a well-established resolution standard in the industrial sector. This makes the LQ084S3DG01 an ideal drop-in replacement or upgrade for aging HMIs that use older SVGA displays. It simplifies the software and hardware integration process, as existing graphics controllers and drivers are often fully compatible, minimizing development time and validation costs for system retrofits.

From a strategic standpoint, investing in components like the LQ084S3DG01 with proven environmental resilience is a forward-looking decision. As industries push for greater automation in increasingly diverse environments, the demand for displays that function reliably without coddling will only grow. This module represents a foundational building block for creating next-generation industrial systems that are built to last.