IMO-bond is a proprietary process of applying rigid optical filters (e.g., contrast enhancing, EMI/RFI shielding, or Therma Klear transparent heaters) to electronic displays via a refractive index matched optical (IMO) bonding process. IMO-bond includes a family of durable, index-matched adhesives that optically couple a cover glass or touch screens to the display to eliminate reflection losses.

Dontech developed the IMO-bond process specifically for the enhancement of displays operating in high ambient light conditions when the amount of light reflected by a display is close to or exceeds the amount of light emitted by the display.  At this point, the contrast loss can be close to 100% and will cause “washout” as the display’s luminance is exceeded. Employing IMO-bond optical coupling of a contrast enhancing cover glass to the front polarizer of the display virtually eliminates reflections from the rear surface of the optical filter and the front surface of the display system.

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