Innolux AT043TN24 V.7: A Robust 4.3-inch WQVGA Display for Demanding Environments
Introduction to a Versatile Industrial Display Solution
The Innolux AT043TN24 V.7 is a 4.3-inch a-Si TFT-LCD module engineered for performance and reliability in a compact form factor. It delivers a crisp 480x272 WQVGA resolution with a high-brightness WLED backlight, making it a staple for a wide range of industrial and commercial applications. Key specifications include: 500 cd/m² brightness | -20 to 70°C operating temperature | 24-bit Parallel RGB interface. This display provides excellent visual clarity and proven durability for system designers. Its standard parallel interface simplifies integration, directly addressing the need for straightforward connectivity with common microcontrollers and processors. With its extended operating temperature range, the AT043TN24 V.7 is an ideal fit for systems deployed in environments where temperature fluctuations are a primary concern.
Key Parameter Overview
Decoding the Specifications for Environmental Resilience
The technical specifications of the Innolux AT043TN24 V.7 are carefully balanced to provide reliable operation in challenging conditions. The display's ability to function across a wide thermal spectrum is a defining characteristic, enabling its use in applications beyond climate-controlled settings. This resilience is complemented by solid optical performance, ensuring consistent readability.
| Parameter | Specification | Engineering Value & Interpretation |
|---|---|---|
| Display Size | 4.3 inches (Diagonal) | Provides a compact yet effective viewing area for portable devices, handheld controllers, and secondary user interfaces. |
| Resolution | 480(RGB) x 272 (WQVGA) | Delivers sharp, clear graphics and text suitable for GUIs in industrial controls, medical devices, and consumer electronics. |
| Operating Temperature | -20°C to +70°C | This wide range is critical for reliability in unconditioned environments like outdoor kiosks, automotive cabins, and factory floors. |
| Storage Temperature | -30°C to +80°C | Ensures component integrity and longevity during transport and storage in extreme climates. |
| Brightness | 500 cd/m² (Typical) | Offers excellent visibility in typical indoor and shaded outdoor conditions, crucial for user interface clarity. |
| Interface | Parallel RGB (1 ch, 8-bit) | A standard, direct-drive interface that simplifies system integration, reducing the need for complex interface conversion hardware. |
| Contrast Ratio | 500:1 (Typical) | Imagine this like the clarity of a voice in a quiet room. A 500:1 ratio ensures deep blacks and bright whites, making every detail distinct. |
| Backlight | WLED, 20,000 hours (Min.) lifetime | The long-life WLED backlight provides sustained brightness and reliability, contributing to a lower total cost of ownership. |
Download the AT043TN24 V.7 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Industrial and Portable Systems
The Innolux AT043TN24 V.7 is engineered to add value across a spectrum of professional applications where reliability is paramount. Its robust design and versatile feature set make it a prime candidate for integration into new and existing platforms.
- Industrial Human-Machine Interfaces (HMIs): The display's wide operating temperature range ensures dependable performance in factory automation, process control panels, and machinery where ambient temperatures can be unpredictable.
- Portable Test and Measurement Equipment: With a typical panel power consumption of just 56mW, the AT043TN24 V.7 is well-suited for battery-powered handheld devices, offering a balance of clear readability and power efficiency.
- Medical Monitoring Devices: The 16.7M color depth and 500:1 contrast ratio provide the clarity needed for displaying vital signs and other critical patient data with accuracy.
- Smart Home and Building Automation: Its compact 4.3-inch size is ideal for wall-mounted control panels, thermostats, and security system interfaces, offering a modern and clear user interface.
What is the primary benefit of its wide temperature range? It guarantees operational stability in harsh industrial settings without requiring external heating or cooling. For systems that require a larger viewing area with similar robust features, the AT080TN64 offers an 8-inch alternative.
Frequently Asked Questions (FAQ)
What is the native resolution and aspect ratio of the AT043TN24 V.7?
The display has a native resolution of 480x272 pixels, which is a WQVGA (Wide Quarter Video Graphics Array) format with a 16:9 aspect ratio.
Does this model include a touchscreen?
The base AT043TN24 V.7 model as specified in the datasheet does not include an integrated touchscreen. However, resistive touch panel (RTP) versions are commonly available in the market.
What type of backlight is used, and what is its expected lifespan?
The display utilizes a White LED (WLED) edge-light system with a minimum specified lifetime of 20,000 hours, ensuring long-term operational reliability.
What are the viewing angles for this TN panel?
The typical viewing angles, with a contrast ratio greater than or equal to 10, are 70° (Left), 70° (Right), 50° (Up), and 70° (Down). The recommended viewing direction is 6 o'clock for optimal image quality.
What is the required logic voltage for the parallel interface?
The digital interface operates at a typical voltage (VDD) of 3.3V, a common logic level for easy integration with a wide range of microcontrollers and processors.
An Engineer's Perspective
Final Thoughts on System Integration
From an engineering standpoint, the Innolux AT043TN24 V.7 represents a practical and low-risk choice for a wide array of embedded display applications. Its adherence to a standard 40-pin FPC with a parallel RGB interface minimizes design complexity and accelerates development cycles. The combination of a wide operating temperature range and a high-brightness backlight addresses two of the most common challenges in industrial HMI design: environmental resilience and ambient light readability. This module is not about exotic features; it is about delivering proven, reliable performance that system designers can count on for long-term product deployments. For engineers working on systems where a straightforward, durable, and clear display is a requirement, the AT043TN24 V.7 provides a solid foundation. You can find more insights on designing with similar technologies in guides on TFT-LCD basics for industrial applications or learning about display technology like TFT-LCD.
