Innolux AT080TN03 V.7 8.0-Inch TFT-LCD Display: Technical Overview and Specifications
Innolux AT080TN03 V.7 8.0-Inch 800×480 TFT-LCD Display
Product Overview and Primary Features
The AT080TN03 V.7 is an 8.0-inch amorphous silicon TFT-LCD panel manufactured by Innolux. It provides a native WVGA resolution of 800 x 480 pixels in a 16:9 widescreen aspect ratio. This module interfaces via a digital 24-bit parallel RGB connection, allowing direct integration with standard embedded processors.
- Core Specifications: 8.0″ Active Area | 800 x 480 WVGA Resolution | 50-Pin Parallel RGB Interface
- Key Engineering Benefits: Direct TTL drive configuration eliminates interface translation latency. The industrial-grade construction supports stable performance from -20°C to +70°C.
Engineers seeking to implement direct digital control loops without the complexity of an external transmitter chip can leverage this panel’s raw TTL RGB input pins.
View and Download Official Datasheet (PDF)
Technical Deep-Dive: Timing and Interface Architecture
The integration of the AT080TN03 V.7 relies on a 50-pin FPC connector. This interface routes parallel RGB data along with horizontal and vertical synchronization signals. In comparison to serialized formats like the LVDS Interface, parallel RGB displays demand precise PCB layout practices. The trace lengths for data lines must be closely matched to prevent skewing of the clock signals during fast data transitions.
At the center of the display cell sits Innolux’s specialized liquid crystal alignment structure. This baseline LCD Core Technology enables a 500:1 contrast ratio. The liquid crystal material can be compared to a mechanical shutter valve: lower fluid viscosity allows quick physical orientation changes. This characteristic helps the panel maintain stable grayscale transitions and prevents ghosting in low-temperature environments down to -20°C.
Backlight drive configurations require an external constant current driver. Implementing precise industrial LCD dimming circuitry protects the LED string from thermal runaway while providing a stable, flicker-free visual output across varying duty cycles.
Optimized Application Environments
The physical parameters of this module suit several specific system designs:
- Industrial HMI Panels: The mechanical construction provides robustness against environmental forces, aligning with standard designs for vibration and shock resistance for industrial displays.
- Automotive Display Units: The wide storage temperature tolerance (-30°C to +80°C) prevents liquid crystal degradation under extreme cabin heat soak conditions.
- Medical Instrumentation: The 800 x 480 native resolution ensures clear legibility for waveform monitors and control readouts.
Best Fit: A legacy-compatible wide-aspect display suited for direct parallel RGB control boards operating within extended temperature boundaries.
Key Specifications
| Parameter | Value / Rating | Conditions / Notes |
|---|---|---|
| Physical Characteristics | ||
| Screen Diagonal | 8.0 Inches | Active diagonal |
| Active Area | 176.64(W) × 99.36(H) mm | – |
| Outline Dimension | 192.8(W) × 113.0(H) × 6.2(D) mm | Typical configuration |
| Electrical and Optical Parameters | ||
| Resolution | 800(RGB) × 480 (WVGA) | 16:9 Aspect ratio |
| Interface Type | Parallel 24-bit RGB | 50-pin connection |
| Supply Voltage (VCC) | 3.3V (Typical) | Logic supply |
| Brightness | 250 cd/m² (Typical) | Center luminance |
| Contrast Ratio | 500:1 (Typical) | At optimal viewing angle |
| Environmental Ratings | ||
| Operating Temperature | -20°C to +70°C | No condensation |
| Storage Temperature | -30°C to +80°C | Absolute limits |
Engineer FAQ
How do you configure the backlight dimming on the AT080TN03 V.7?
Dimming is managed through the external LED backlight driver circuit. Applying a Pulse Width Modulation (PWM) signal to the enable pin of the driver allows precise adjustment. The frequency should be set within the driver’s recommended limits to avoid audible resonance and visual flicker.
Can this display replace the Innolux AT080TN52 V.5?
While both displays feature an 8.0-inch WVGA format, they differ in physical interface mechanics, pin layouts, and specific timing requirements. Always review the mechanical outlines and pin mapping tables in the respective data sheets before attempting a direct drop-in replacement.
What are the signal integrity requirements for the parallel RGB interface?
Due to the high pin count of the parallel RGB path, line trace lengths must be matched. Keep trace impedance to 50 ohms and minimize via counts to prevent phase shifts. High-speed signal paths should run over a continuous ground reference plane to suppress EMI.
Conclusion
The Innolux AT080TN03 V.7 display module delivers a functional, WVGA visualization solution for legacy and standard embedded architectures. Its digital parallel RGB interface, combined with industrial-grade thermal ratings, provides engineers with a predictable component choice for high-reliability human-machine interfaces.