Content last revised on March 14, 2026
Innolux AT050TN22 V1 | A Versatile 5.0" TFT LCD for Industrial HMIs
The Innolux AT050TN22 V1 is a workhorse 5.0-inch TFT-LCD module engineered for reliability and performance in a wide range of industrial and commercial applications. It strikes a crucial balance between visual clarity, robust construction, and ease of integration, making it a go-to choice for developers designing compact Human-Machine Interfaces (HMIs), portable diagnostic equipment, and embedded systems.
Product Highlights at a Glance
- Optimal Display Size & Resolution: The 5.0-inch diagonal with a 480x272 WQVGA resolution provides a clear, concise canvas for displaying critical operational data, menus, and simple graphics without overwhelming a compact device footprint.
- Wide Operating Temperature Range: With an operational range of -20°C to 70°C, the AT050TN22 V1 is built to withstand the thermal demands of unconditioned factory floors, outdoor-adjacent control panels, and portable field instruments.
- Direct Drive Parallel Interface: Featuring a 40-pin Parallel RGB interface, this display allows for straightforward, low-latency control directly from a wide array of microcontrollers (MCUs), simplifying system architecture and firmware development.
- Proven a-Si TFT Technology: Leverages mature a-Si TFT (Amorphous Silicon) technology to deliver a cost-effective solution with consistent, reliable performance and a long product lifecycle.
Key Technical Specifications
For engineers requiring precise data for system integration, the following table summarizes the core performance metrics of the AT050TN22 V1. For comprehensive electro-optical characteristics, please download the official AT050TN22 V1 datasheet.
| Parameter | Specification |
|---|---|
| Screen Size | 5.0 inch |
| Resolution | 480(RGB)×272, WQVGA |
| Brightness | 250 cd/m² (Typ.) |
| Contrast Ratio | 500:1 (Typ.) |
| Viewing Angle (L/R/U/D) | 70/70/50/70 (Typ.) |
| Interface Type | Parallel RGB (1 ch, 8-bit), 40 pins FPC |
| Backlight | WLED |
| Operating Temperature | -20 ~ 70 °C |
Technical Deep Dive: Engineering for Value and Reliability
The design choices behind the Innolux AT050TN22 V1 are deliberate, prioritizing practicality for industrial designers. The 40-pin Parallel RGB interface is a key advantage in systems where high-speed serial interfaces like MIPI or LVDS would add unnecessary cost and complexity. It enables direct, real-time pixel data transfer from an MCU's display controller peripheral, minimizing latency and simplifying the hardware design for control-focused applications.
Furthermore, the integration of energy-efficient WLEDs for the backlight is a critical feature. This not only contributes to the display's modest power consumption but also ensures a stable brightness level and long operational life, reducing maintenance overhead. The underlying TFT-LCD technology from a leading manufacturer like Innolux—a peer of industry giants like AUO—guarantees a stable supply chain and consistent quality for long-term production needs.
Application Scenarios & Value Proposition
The AT050TN22 V1 excels in applications where information density and extreme performance are secondary to reliability, cost-effectiveness, and ease of use.
- Small-Scale Industrial Control Panels: Perfect for pump controllers, HVAC thermostats, and machinery sub-panels. Its wide temperature range ensures functionality in non-climate-controlled environments, while the resolution is ideal for displaying status indicators, setpoints, and error codes.
- Portable Diagnostic and Test Equipment: In handheld devices like network testers, environmental sensors, or automotive diagnostic tools, the display's low power draw and compact form factor are essential. The direct parallel interface simplifies integration with battery-powered embedded processors.
- Medical Devices & Lab Instruments: For desktop instruments like fluid analyzers or patient monitoring sub-systems, the AT050TN22 V1 offers a clear, reliable user interface for technicians to operate the device and view results without the cost of a high-resolution or touch-enabled screen.
Frequently Asked Questions (FAQ)
1. Is the AT050TN22 V1 suitable for outdoor or direct sunlight applications?
With a typical brightness of 250 cd/m², this display is designed for indoor or heavily shaded environments. It is not a sunlight-readable display. For applications requiring high visibility in bright ambient light, a display with a brightness of 800 cd/m² or higher and potentially optical bonding would be recommended.
2. What is the typical viewing angle performance?
As a TN-type panel, it offers excellent horizontal viewing angles (70° left/right). The vertical viewing angles are more limited (50° up / 70° down), which is a key consideration for product design. The device should be oriented so the primary user views it from a near-perpendicular or slight downward angle for optimal image quality.
If your project requires a dependable, no-frills display that delivers consistent performance, the Innolux AT050TN22 V1 is an exceptional engineering choice. For pricing, availability, or to discuss integrating this module into your design, please contact our technical team to explore our full range of industrial LCD displays.
