EL4836HB-02 | Rugged High-Brightness Industrial TFT Display
The EL4836HB-02 is an industrial-grade TFT-LCD engineered for applications where visual clarity, environmental resilience, and long-term reliability are non-negotiable. This display moves beyond consumer-grade specifications, providing system designers with a robust human-machine interface (HMI) solution built to perform under challenging operational conditions. It is an ideal component for OEMs and system integrators developing next-generation control panels, diagnostic equipment, and outdoor information systems.
Key Features and Engineering Advantages
- High Luminance Panel: Engineered for superior visibility in high ambient light and direct sunlight conditions, ensuring critical data is always readable.
- Wide Operating Temperature Range: Guarantees stable performance in unconditioned environments, from cold-start industrial settings to high-heat outdoor enclosures.
- Robust Industrial Construction: Built with components selected for their durability and resistance to shock and vibration, enhancing the operational lifespan of the end device.
- Long-Life LED Backlight: Provides consistent brightness over thousands of hours, reducing maintenance cycles and total cost of ownership compared to legacy CCFL backlights.
Application Scenarios & Engineering Value
The specific design attributes of the EL4836HB-02 make it a superior choice for several demanding sectors:
- Outdoor Kiosks & Digital Signage: Its high brightness and anti-glare properties directly combat solar loading and reflections, delivering a crisp, clear image for public information displays, payment terminals, and EV charging stations.
- Heavy Machinery & Agriculture: In vehicle cabs where operators face extreme temperatures and vibration, the EL4836HB-02's durability ensures that vital telemetry, GPS data, and control interfaces remain operational. This resilience is key for engineering displays for extreme environments.
- Marine Electronics: The display's performance in fluctuating temperatures and bright conditions is crucial for bridge control systems, fish finders, and navigation equipment, where readability can directly impact safety and operational efficiency.
Key Parameters at a Glance
The following specifications highlight the EL4836HB-02's suitability for high-performance industrial applications. For complete electrical and mechanical details, you can download the EL4836HB-02 Datasheet.
| Parameter | Typical Value |
|---|---|
| Screen Size | 4.3" Diagonal |
| Resolution | 480 x 272 (WQVGA) |
| Brightness (Luminance) | 800 cd/m² (nits) |
| Contrast Ratio | 800:1 |
| Viewing Angle (L/R/U/D) | 80°/80°/80°/80° |
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Interface | 24-bit Parallel RGB |
Technical Deep Dive: Beyond the Spec Sheet
Engineered for Clarity in Any Light
A standard display's 250-300 nits of brightness are quickly washed out by sunlight. The EL4836HB-02's high-luminance backlight, typically delivering 800 nits or more, is specifically designed to overcome this challenge. This isn't just about cranking up power; it's about a thermally managed LED system that maintains brightness without premature degradation. This core feature is the foundation of creating truly sunlight-readable HMIs, allowing operators to work effectively outdoors without needing to shade the screen.
Built for Environmental Extremes
The specified operating temperature of -20°C to +70°C is a critical differentiator from commercial displays. At the low end, the liquid crystal fluid maintains its viscosity, preventing slow response times or freezing. At the high end, the materials are chosen to prevent blackening or degradation under thermal load. This wide range ensures that the EL4836HB-02 can be deployed in sealed, non-ventilated enclosures or on mobile equipment that transitions between climates without risk of failure, a common requirement for the diverse range of industrial LCD displays available today.
Frequently Asked Questions (FAQ)
What is the benefit of a wide viewing angle?
A wide viewing angle, like the 80/80/80/80 degrees of the EL4836HB-02, ensures that the image remains consistent in color and contrast even when viewed from off-center. This is critical in industrial settings where an operator may not be positioned directly in front of the screen, such as on a large control panel or when multiple people need to view the display simultaneously. It eliminates color inversion and contrast shift, preventing misinterpretation of critical data.
How does the parallel RGB interface impact system design?
The 24-bit parallel RGB interface is a standard, high-bandwidth connection well-suited for displaying full-color video and complex graphics without compression artifacts. It offers straightforward integration with a wide variety of microcontrollers and display controllers that have a dedicated TFT driver peripheral. While it requires more pins than a serial interface, it provides direct, high-speed access to the display's frame buffer, resulting in smooth animations and rapid screen updates essential for a responsive HMI.
