Content last revised on November 20, 2025
LQ065T5AR05: Engineering Grade 6.5-inch TFT-LCD for Automotive and Industrial HMIs
An In-Depth Technical Review for OEM Engineers and Procurement Specialists
The Sharp LQ065T5AR05 is a 6.5-inch a-Si TFT-LCD module engineered for consistent visual performance in applications where reliability is paramount. Delivering a resolution of 400x234 pixels and a luminance of 350 cd/m², this display provides a robust foundation for clear information delivery. Key benefits include a wide operational temperature range and an anti-glare surface treatment for enhanced readability. For engineers designing systems for challenging thermal environments, the LQ065T5AR05's specified performance from -30°C to 85°C directly addresses the need for operational stability without complex thermal management. Best fit for automotive infotainment head units and industrial control panels where proven durability outweighs the need for high resolution.
Key Parameter Overview
Decoding the Specs for Environmental Reliability
The specifications of the Sharp LQ065T5AR05 are tailored for embedded systems that require dependable performance under fluctuating environmental conditions. The display's thermal resilience is a defining characteristic, ensuring functionality across a broad temperature spectrum critical for automotive and non-climate-controlled industrial settings.
| Parameter | Specification | Engineering Significance |
|---|---|---|
| Screen Size | 6.5 inches (16.5 cm) | Provides a compact yet effective viewing area for primary instrumentation or secondary control interfaces. |
| Resolution | 400 (RGB) x 234 | Sufficient for displaying essential system data, graphical icons, and status indicators with clarity. |
| Luminance | 350 cd/m² (Typ.) | Delivers adequate brightness for readability in typical indoor and cabin environments. |
| Operating Temperature | -30°C to +85°C | A critical parameter ensuring operational integrity in extreme cold-start and high-heat soak conditions, common in automotive or outdoor-adjacent machinery. |
| Contrast Ratio | 300:1 (Typ.) | Ensures clear differentiation between light and dark content, which is vital for quick glanceability of user interfaces. |
| Signal Interface | Analog RGB | A widely supported interface that simplifies integration with a variety of legacy and cost-effective microcontrollers and display drivers. |
| Surface Treatment | Anti-Glare (AG) | Reduces specular reflections from ambient light sources, minimizing visual distractions for the operator. |
Download the LQ065T5AR05 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Automotive and Industrial HMI Design
The LQ065T5AR05 is engineered to address the specific challenges of creating durable Human-Machine Interfaces (HMIs). Its primary value lies in its environmental robustness, making it a suitable candidate for integration into systems where temperature swings and ambient light can compromise performance.
A high-fidelity engineering scenario is its deployment within an agricultural vehicle's instrument cluster. In this application, the operator's cab can experience temperatures well below freezing on startup and exceed 60°C during operation in direct sun. The LQ065T5AR05's -30°C to +85°C operating range ensures that the display remains functional and provides critical telemetry without failure. This wide thermal window is like having all-season tires for your display; it's designed to perform reliably whether you're facing a frigid morning start or the peak heat of a summer afternoon, eliminating the need for costly active heating or cooling systems. The anti-glare surface is equally critical, preventing sunlight from washing out the screen or creating disabling reflections, thereby ensuring the operator can always read vital machine data. For systems requiring a standard VGA resolution in a slightly smaller form factor, the related LQ064V3DG06 offers an alternative design path.
- Automotive Infotainment Systems: Ideal for center console displays in cars, trucks, and buses where temperature extremes are a daily occurrence.
- Industrial Control Panels: Suited for factory floor HMIs, process controllers, and test equipment that operate in non-climate-controlled facilities.
- Marine Electronics: The anti-glare surface and robust temperature range make it a viable option for bridge instrumentation and navigation systems.
- Medical Monitoring Equipment: Provides a reliable display for patient monitors and diagnostic devices that need to perform consistently.
Frequently Asked Questions (FAQ)
What is the primary benefit of the -30°C to +85°C operating temperature range?
This wide range guarantees display functionality in unconditioned environments, such as a vehicle cabin that experiences freezing overnight temperatures and intense solar heating during the day. It reduces the engineering burden and cost associated with implementing external heating or cooling components for the display module.
How does the Anti-Glare (AG) surface treatment impact usability in a vehicle?
The AG surface diffuses ambient light, significantly reducing mirror-like reflections that can obscure the screen. This is a critical safety and usability feature for any in-vehicle display, as it ensures the driver can read information with a quick glance without being distracted by glare from the sun or streetlights.
Is the 400x234 resolution sufficient for modern graphical interfaces?
While not a high-definition display, this resolution is well-suited for its intended purpose: displaying critical data, status indicators, menus, and basic graphics with excellent clarity. It is optimized for systems where reliability and cost-effectiveness are higher priorities than pixel density, making it a perfect match for many heavy machinery and automotive instrument cluster applications.
What are the integration advantages of an Analog RGB interface?
The Analog RGB interface is a mature, well-documented standard supported by a vast number of microcontrollers and graphics processors. This simplifies the hardware design and software development process, potentially shortening the design cycle and reducing BOM costs compared to more complex digital interfaces like LVDS.
Strategic Outlook
The LQ065T5AR05 represents a design philosophy centered on targeted performance and long-term operational stability. In an industry often focused on pushing pixel density and screen size, this module provides a strategic solution for designers of automotive and industrial systems who require a component that is fundamentally reliable and purpose-built for its environment. By prioritizing a wide operating temperature range and practical features like an anti-glare surface, this TFT-LCD provides a predictable, durable, and cost-effective building block for a wide array of mission-focused applications where failure is not an option.
