Sharp LQ9D011 | Robust 8.4-inch VGA TFT-LCD for Industrial Applications
The Sharp LQ9D011 is an 8.4-inch color TFT-LCD module engineered for longevity and reliability in demanding industrial environments. While many displays chase higher resolutions, the LQ9D011 delivers proven performance where it matters most: in legacy system support, medical instrumentation, and factory automation. Its robust construction and stable performance make it a first-choice replacement component for maintaining the operational life of critical equipment.
- Optimal Resolution for Legacy Systems: A native 640x480 VGA resolution ensures pixel-perfect compatibility with a vast range of industrial HMIs, CNC controllers, and test equipment without scaling artifacts.
- Proven a-Si TFT Technology: Built on an Amorphous Silicon (a-Si) TFT substrate, this display offers a mature, reliable platform known for its stability and resistance to image sticking over long operational hours.
- High-Clarity Visuals: With a typical brightness of 250 cd/m² and a 350:1 contrast ratio, it provides clear, readable graphics and data, crucial for operator accuracy and reducing eye strain.
- Wide Operating Temperature: Engineered to function reliably from 0°C to +55°C, the Sharp LQ9D011 is well-suited for deployment in factory floor environments and enclosed control panels.
Key Technical Specifications
The following table outlines the core performance metrics for the LQ9D011, providing engineers with the data needed for system integration and component evaluation. For comprehensive electrical and mechanical details, you can download the full datasheet.
| Parameter | Value |
|---|---|
| Manufacturer | Sharp |
| Model | LQ9D011 |
| Screen Size | 8.4 inches |
| Resolution | 640(RGB) x 480 [VGA] |
| Display Technology | a-Si TFT, Normally White, Transmissive |
| Brightness | 250 cd/m² (Typ.) |
| Contrast Ratio | 350:1 (Typ.) |
| Interface Type | Parallel RGB (1 ch, 6-bit) |
| Backlight | 1 pc CCFL with Inverter |
| Operating Temperature | 0 ~ 55 °C |
| Outline Dimensions | 201(W) x 151(H) x 12.5(D) mm |
Engineered for Reliability in Critical Applications
The Sharp LQ9D011 isn't just a display; it's a strategic component for asset lifecycle management. Its design philosophy prioritizes stability over cutting-edge specs, a crucial requirement in industries where equipment validation cycles are long and costly.
The use of TFT-LCD technology based on amorphous silicon ensures predictable performance and a robust defense against the harsh electrical and thermal conditions found in industrial settings. Furthermore, its CCFL backlight system, while a legacy technology, offers a well-understood performance curve and failure mode, simplifying maintenance and diagnostics for field technicians.
Application Scenarios: Where the LQ9D011 Excels
Legacy HMI and CNC Machine Retrofitting
For countless CNC machines, PLC interfaces, and process control systems deployed over the last two decades, the 8.4-inch VGA format is standard. The LQ9D011 serves as a direct, form-fit-function replacement, allowing businesses to extend the life of high-value capital equipment without expensive and risky system-wide upgrades. Its standard parallel interface eliminates the need for complex adapter boards, ensuring a seamless integration.
Medical and Laboratory Instrumentation
In medical monitoring and diagnostic equipment, display reliability is non-negotiable. The LQ9D011 delivers the consistent, stable image quality required for displaying vital patient data or measurement readouts. Its proven design provides the confidence and long-term availability needed for products with multi-year service lives and stringent regulatory requirements.
Frequently Asked Questions for Engineers
1. Is the LQ9D011 a drop-in replacement for other 8.4" VGA displays?In many cases, yes. The Sharp LQ9D011 adheres to common mechanical and electrical standards for this display class. However, it is critical to verify the pinout of the parallel RGB connector and the mounting hole locations against your existing system's specifications to ensure full compatibility.
2. What is the expected lifespan of the CCFL backlight, and is it replaceable?The CCFL backlight typically has a half-life of 25,000 to 50,000 hours. A key advantage of this technology is that the CCFL tube is a modular component that can often be replaced, extending the service life of the entire display assembly. This is a significant benefit in maintaining reliable displays in heavy machinery and other long-service-life applications.
If you are planning an upgrade or require a reliable display for a new industrial design, the Sharp LQ9D011 offers a compelling blend of performance and proven durability. For pricing, availability, or to discuss your specific application needs, please contact our engineering support team.
