Content last revised on October 2, 2025.
AA084SA01: Industrial 8.4-inch SVGA TFT-LCD Engineered for Longevity and Reliability
Executive Summary: Key Features and Engineering Value
The AA084SA01 is an 8.4-inch SVGA TFT-LCD module engineered for sustained performance in demanding industrial environments. It delivers a precisely balanced feature set of 800x600 resolution | 400 cd/m² brightness | -20 to 70°C operating temperature | 100,000-hour LED backlight. Key engineering benefits include exceptional operational longevity and clear, stable readability under challenging thermal and ambient light conditions. This display directly addresses the need for a reliable, long-life visualization component for industrial control systems and instrumentation. For fixed-mount industrial HMIs requiring proven durability over an extended lifecycle, the AA084SA01's 100K-hour backlight provides a decisive total cost of ownership advantage.
Key Parameter Overview
Specifications Engineered for Industrial Longevity and Performance
The technical specifications of the AA084SA01 are curated to deliver predictable and reliable performance, prioritizing durability and seamless integration into industrial systems. Each parameter translates directly into tangible engineering value, from thermal stability to optical clarity.
| Specification | Engineering Implication & Value |
|---|---|
| Display Size | 8.4 inches (diagonal) |
| Resolution | 800 (RGB) × 600 [SVGA] - Provides clear, sufficient detail for typical HMI, process control, and instrumentation interfaces. |
| Panel Technology | a-Si TFT-LCD - A mature, highly reliable technology platform for industrial applications. |
| Luminance | 400 cd/m² - Ensures strong readability in typical factory floor and control room lighting environments. |
| Contrast Ratio | 600:1 - Delivers sharp differentiation between colors and text, reducing operator eye strain. |
| Viewing Angle (L/R/U/D) | 80°/80°/80°/60° - Offers flexible viewing for operators who may not be positioned directly in front of the screen. |
| Operating Temperature | -20°C to 70°C - This wide range is critical for deployment in unconditioned environments, from cold-start factory floors to enclosures with significant heat load, ensuring system reliability without auxiliary climate control. |
| Backlight Lifetime | 100,000 hours (Typ.) - A key differentiator that significantly reduces maintenance requirements and lowers the total cost of ownership over the product's lifecycle. This is more than double the lifespan of many commercial-grade displays. |
| Interface | LVDS (Low Voltage Differential Signaling), 1 channel, 6-bit - A standard, low-noise interface that simplifies integration with a wide range of single-board computers and display controllers. |
| Surface Treatment | Anti-glare - Diffuses reflections from overhead lighting, improving usability and reducing visual fatigue for operators. |
Download the datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Delivering Data Clarity and Uptime in Critical Control Systems
The AA084SA01 is best suited for applications where long-term reliability and a low total cost of ownership are primary decision drivers. Its robust design makes it an ideal component for a range of industrial and specialized equipment.
A high-fidelity engineering scenario is its use in a legacy CNC machine or factory automation HMI. The challenge in these environments is ensuring operational uptime over a 10+ year service life, often in factory conditions with significant temperature swings and electrical noise. The AA084SA01's 100,000-hour backlight directly solves this challenge by minimizing the need for costly maintenance cycles to replace faded backlights. Its wide operating temperature range ensures the display performs reliably from a cold morning start-up to peak afternoon temperatures inside an electrical cabinet. The integrated LVDS Interface provides robust noise immunity, critical for stable data transmission on a factory floor. This focus on durability distinguishes it from consumer-grade displays, as explored in this guide to industrial versus consumer displays.
For systems requiring a different legacy resolution in the same 8.4-inch form factor, the related AA084VC04 provides a VGA (640x480) interface. Conversely, for applications that demand higher data density and finer detail, the AA084XA02 offers an XGA (1024x768) resolution.
Frequently Asked Questions
Clarifying Design and Integration Details for the AA084SA01
What is the primary benefit of the 100,000-hour LED backlight lifetime?
The primary benefit is a significantly lower total cost of ownership (TCO). In an industrial setting, this extended lifespan means fewer maintenance interventions, reduced downtime, and greater operational predictability compared to displays with 40,000- or 50,000-hour backlights.
How does the standard LVDS interface on the AA084SA01 simplify system integration?
The LVDS interface is a widely adopted standard for connecting displays to embedded systems and industrial PCs. Its use of differential signaling reduces susceptibility to electromagnetic interference (EMI), a common issue in industrial environments. This simplifies the electrical design and ensures a stable, reliable video signal without requiring complex shielding or signal conditioning.
Is the AA084SA01's anti-glare surface suitable for environments with direct overhead lighting?
Yes. The anti-glare surface is specifically designed to diffuse reflections from point light sources, such as factory or control room lighting. This works like the matte finish on a professional photograph, scattering ambient light to prevent sharp, distracting reflections and ensure the screen remains readable from multiple angles.
Technical Deep Dive
An Analysis of the Mechanical and Thermal Design for Long-Term Reliability
The engineering philosophy behind the AA084SA01 is centered on component endurance. The specified operating temperature range of -20°C to 70°C is a critical design parameter that ensures functionality in systems without active cooling or heating, such as outdoor-adjacent kiosks, vehicle cabins, or sealed NEMA enclosures. This thermal resilience is achieved through careful selection of liquid crystal fluid and electronic components that maintain stable performance across this broad thermal spectrum. What is the impact of its wide temperature range? It guarantees reliable display startup and operation, preventing the sluggish response times or image artifacts that affect lesser displays in extreme cold or heat.
Furthermore, the 100,000-hour backlight MTBF is a testament to a conservative design approach. This lifespan, equivalent to over 11 years of continuous 24/7 operation, is not just about the LEDs themselves but also the efficiency of the thermal path designed to draw heat away from them. By preventing the LEDs from running excessively hot, their degradation is slowed dramatically, ensuring consistent brightness for years. This focus on thermal management is a cornerstone of building truly industrial-grade TFT-LCDs.
Engineering Your Next HMI with Confidence
The AA084SA01 provides a robust foundation for industrial displays where operational uptime and lifecycle predictability are non-negotiable. Its specifications are not just data points; they represent engineered assurances of performance in demanding, real-world conditions. For detailed schematics, timing diagrams, and optical characteristics necessary to accelerate your design cycle, referring to the official datasheet is the critical next step in your evaluation process. This allows your engineering team to model thermal performance and verify system compatibility with confidence.
