How does one make a membrane switch visible only when lit?

Have you ever wondered how you can make your membrane switch visible only when you want it to glow. Dead front technology is the answer.

In this technology, the Dead Front Panel illuminates and draws attention to the icons and alpha-numeric indicators as required. When non-backlit i.e. when the keys are not pressed, the icons remain hidden and the panel retains a more monochromatic and streamlined look.

Dead front membrane switches can be created with either printed inks or by adding diffusing layers to the membrane switch itself. Successful integration of the graphic overlay with the membrane switch electronics dictates a custom membrane switch for nearly all applications.

Dead front backlit keyboards are designed in order that the symbols or graphics aren’t visible unless the graphics or symbols are lit up with a light source. The main idea is to illuminate the graphics or symbols only when you would like the user to see it. For example, you see the seat-belt indicator light in your car only if you are not wearing your seat-belt.

Dead front membrane switches are often produced in rich color to increase product aesthetics. Dead front membrane switches are often produced with almost any background color with black being the foremost common. You can incorporate only one LED light color or have multiple LED light colors within one display.

Very commonly you’ll see these sorts of labels in automobile and aerospace industry.

Dead Front Membrane Switch Key Benefits include

  • Cost effective dead front display
  • Simplified user interface
  • Less disruptive interface
  • Multiple LED light colors
  • Haptic feedback capable
  • Easy to shield
  • Thin format applications are possible
  • Silver or copper PCB solutions
  • Full color graphic overlays

Dead Front Membrane Applications

  • Product Retro-fits and Upgrades
  • Medical
  • Industrial
  • Restaurant
  • High End Consumer
  • Automotive
  • Appliances
  • Complex Interfaces
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