Innolux AT050TN22 V1: A Robust 5-Inch Display for Industrial Applications
Innolux AT050TN22 V1 5.0″ 640×480 Industrial TFT-LCD
Introduction & Core Highlights
The Innolux AT050TN22 V1 is a 5.0-inch amorphous silicon TFT-LCD module delivering proven performance for industrial applications. Its unique value proposition lies in a robust operational temperature range and a standard resolution, providing a reliable display solution for systems operating in demanding environments. This display offers a precise balance of size, clarity, and durability for clear information delivery where it matters most.
- Core Specifications: 5.0-inch Diagonal | 640(RGB)x480 [VGA] | -20 to 70°C Operating Temperature
- Key Advantages: Ensures stable performance across a wide thermal spectrum, features an anti-glare surface for improved readability.
- Integration Value: The parallel digital RGB interface supports straightforward integration with a wide array of driver boards and embedded systems.
Download Official Datasheet (PDF)
Technical Analysis
The engineering value of the AT050TN22 V1 is anchored in its operational resilience and practical display characteristics. The ability to function reliably in ambient temperatures from -20°C to 70°C is a critical specification for equipment deployed in environments without climate control, such as factory floors, outdoor kiosks, or vehicle-mounted systems. This wide range ensures that display performance remains consistent, from cold starts in winter to peak heat in summer, preventing common issues like slowed response times or image degradation that affect less robust displays.
Think of the operating temperature range as the display’s “all-weather capability.” Just as a vehicle must start in freezing cold and not overheat in traffic, this display is engineered to deliver consistent visual output across a 90°C thermal window. This reduces the need for complex external heating or cooling systems in many designs, simplifying thermal management and lowering the total cost of ownership. The module’s anti-glare surface treatment further enhances its utility by diffusing ambient light, which minimizes reflections and maintains image clarity for operators working under bright overhead lighting.
Optimized Application Scenarios
The specific feature set of the AT050TN22 V1 makes it a strong candidate for several targeted applications:
- Industrial HMI Panels: The 640×480 VGA resolution is ideal for displaying essential process data and controls with excellent clarity, while the wide temperature range ensures reliability on the factory floor.
- Portable Test & Measurement Equipment: Its 5.0-inch size provides a compact yet readable screen for field instruments that must operate reliably outdoors.
- Data Terminals and Kiosks: The anti-glare surface and robust build are well-suited for public-facing or high-use devices in various lighting conditions.
- Legacy System Retrofits: The standard 4:3 aspect ratio and parallel RGB interface make it an effective drop-in replacement or upgrade for older systems, extending product lifecycles.
This module is a best-in-class fit for systems requiring a durable, compact VGA display with proven thermal resilience for long-term operational stability.
Key Specification Parameters
| Parameter Category | Specification | |
|---|---|---|
| Display Characteristics | Screen Size | 5.0 inch (diagonal) |
| Resolution | 640(RGB) × 480 [VGA] | |
| Pixel Pitch | 0.0529 × 0.1587 mm (W×H) | |
| Surface Luminance | 200 cd/m² (Typical) | |
| Contrast Ratio | 250:1 (Typical) | |
| Viewing Angle | 60/60/40/60 (Left/Right/Up/Down) (Typical) | |
| Electrical Characteristics | Interface Type | Digital RGB (8/6-bit), 40-pin FPC |
| Power Supply (Digital) | 3.3V (Typical) | |
| Backlight System | WLED, 20K hours (Typical) | |
| Mechanical & Environmental | Module Dimensions | 117.4 × 88.4 × 5.2 mm (W×H×D) |
| Operating Temperature | -20 ~ 70 °C | |
| Storage Temperature | -30 ~ 80 °C | |
Engineer’s FAQ
- What is the key benefit of the AT050TN22 V1’s wide operating temperature range?
- The -20 to 70°C operating range ensures the display performs reliably without requiring auxiliary heating or cooling in most industrial or outdoor–adjacent applications. This simplifies system design and enhances the final product’s field reliability, as detailed in our guide to engineering for extreme environments.
- What are the power supply requirements for this module?
- The datasheet specifies a typical logic voltage (DVDD) of 3.3V. The LED backlight driver requires a separate power source, and its specific voltage and current should be managed according to the electrical characteristics outlined in the official documentation.
- How is the LED backlight controlled?
- The white LED backlight is powered via dedicated pins on the 40-pin FPC. Brightness can be controlled by applying a Pulse Width Modulation (PWM) signal to the LED driver circuit connected to the backlight, a technique further explored in our guide to flicker-free dimming.
- Is a touch panel integrated with this model?
- The AT050TN22 V1, as specified in the datasheet, is a display module only and does not include an integrated touch panel. A separate resistive or capacitive touch overlay would need to be sourced and integrated for touch functionality.
Enabling Robust System Design
This display provides a solid foundation for user interfaces that must deliver clear, consistent performance under thermally challenging conditions. The Innolux AT050TN22 V1 empowers engineers to develop durable and reliable products by removing environmental uncertainty as a variable in display performance. Its combination of a standard interface, practical resolution, and industrial-grade resilience makes it a valuable component for long-lifecycle systems.