Rugged +

Bright, high contrast, fast response, long life industrial thin film transistor liquid crystal displays are what KOE is known for. Our RUGGED+ display line provides all of this in a durable mechanical package designed and qualified to provide this high performance and long viable life when used at environmental extremes and physically demanding display applications. 

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Our RUGGED+ LED backlight system is the key to providing a cleaner, more durable, energy efficient solution to extreme industrial display implementations. Our Rugged+ backlight systems include:

• Safe low-voltage, low EMI, solid state mercury free backlight system. 
• Energy efficient, color safe, full range on board brightness control
• Exceptional heat management and mechanical design to ensure 8 years of viable brightness when subjected to extremes in temperatures, thermal cycles, and intense mechanical shock or vibration.

Our Ultra Wide Temperature Rated (UWTR) Long Life LED (LL-LED) liquid crystal displays undergo thousands of hours of rigorous environmental testing and evaluation before we allow them to be rated RUGGED+. We first have to verify that the materials and structures inside the display meet the specification limit endurance testing with no material warping, de-lamination or performance degradation:

• 3 weeks soaking at +90^oC (194^oF)
• 3 weeks soaking at-40^oC/F
• 500 deep soak temperature cycles (+90^oC to -40^oC)
• 5G vibration cycles (10-200 Hz) on each axis for 3 hours
• 80G mechanical drop shock (10ms) on each axis

Next we verify that the display operates with high performance and in a manner consistent with long product life at the operational specification limits:

• 3 weeks of continuous operation at +80^oC (176^oF) 
• 3 weeks of continuous operation at -30^oC (-22^oF)
• 3 weeks of continuous operation with the temperature cycling between +80^oC and -30^oC
• 3 weeks of continuous operation at 40^oC (104^oF) with 85% humidity
  
• Continuous operation under a 17 point electro-static discharge (150pF/330ohm) at +20KV and -20KV

Our RUGGED+ displays show better uniformity, contrast, color tone, response times, life brightness curves and MTBF under these conditions than Wide Temperature Range (WTR) displays which are specified to operate at -30^oC and 85^oC. Our displays do more than just "operate" under extreme stress they "perform". RUGGED+ displays are not Wide Temperature Range (WTR), but Ultra Wide Temperature Rated" (UWTR) to give you a high performing long life product.

Browse our RUGGED+ Displays