Operating Temperature Range

Most sturdy displays operate between -20°C to +70°C as minimum specifications with some extending as low as -40°C or higher up to 85°C. Their LCD panels, backlights, drivers, touch controllers and other internal components are designed, assembled and tested to function reliably across wide thermal limits. Specialized coatings, component selections and heatsinking ensure the Rugged Displaysurface remains readable even under extreme heat or cold.

Optical Considerations

Outdoor sunlight readability is paramount for mobile field users. Rugged LCDs incorporate anti-reflective and anti-glare coatings on the glass plus boosted nits levels of 1000+ nits to cut through bright ambient lighting conditions. Automatic brightness control using ambient light sensors adjusts the backlight for changing light. Optical bonding of the LCD layers enhances contrast, durability and readability. Some rugged models also offer optional sunlight readable technologies like FSTN LCD or e-paper displays.

Conformal Coatings and Sealing

Conformal coatings protect circuitboards and connectors from moisture, dust, salt spray and other environmental intrusion threats. Sealing prevents water/particle ingress to IP65/IP67 standards withstands high-pressure water jets. Combined with desiccant packets inside, this delivers worry-free operational integrity even in wet or dirty environments. Vibration resistance is also enhanced as conformal coatings dampen resonances.

Environmental Testing and Certifications

To earn rugged qualifications, displays undergo extensive validation testing simulating real-world use over the product lifetime. This includes thermal shock tests, humidity testing, mechanical shocks from drops and vibrations, salt fog exposure, enclosure sealing tests and more. Meeting military specs like MIL-STD-810G and certifications such as IP65/67 sealing validates the display can withstand years of punishing use in diverse applications.

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