Optical Bonding

What Is Optical Bonding?

Optical bonding is the process of adhering two or more optical transparent components together using a clear optical index-matched adhesive. It involves using protective glass to enhance the readability if a display in outdoor environments where there is high humidity.

It is used to prevent the build up of condensation from forming on the inner surface of the display, and reduce the reflection of sunlight.

Technology for Optical Bonding

Optical bonding uses liquid optical clear adhesive (LOCA). LOCA is a liquid based bonding technology binding transparent components (e.g., cover lenses, touch sensors, plastic parts or other materials).

Benefits of Using Liquid Optically Clear Adhesive (LOCA)

  • LOCA process can be completely automated in our production
  • No limitation in size
  • High adhesion with LOCA (glass-glass, glass-PMMA etc.)
  • No condensation or fogging
  • Resistance to extreme temperatures
  • LOCA allows for thinner and light display designs
  • Containment free processing
  • Suitable for applications with uneven surfaces

Benefits of Optical Bonding

  • Improving the viewing experience
  • Increasing the display ruggedness
  • Extending the battery life
  • Extending the display product life

What Type of Applications Can Benefit from Optical Bonding?

Any display in an outdoor environment of high ambient light conditions can be improved with optical bonding. Example applications include marine displays, information kiosks, digital signage, in-vehicle displays and rugged industrial monitors.

Other Display Enhancement Services Available

GSR can add the following coatings and performance films to further enhance the viewing performance by minimising reflections and unwanted high ambient background light.

  • Anti-glare
  • Anti-reflective
  • Anti-finger print
  • Linear and circular polarizers
  • ITO EMI coatings

Cover Glass Options:

  • Soda lime
  • Gorilla
  • Chemically strengthened
  • Heat Tempered
  • Plexi Glass (PMMA)
  • Polycarbonate (PC)

Touchscreen Options:

  • P-CAP
  • Resistive

Have you thought about Cover Lenses from GSR Technology? Incorporated into display assemblies, Cover Lenses improve the mechanical qualities of the user interface, often including a touch sensor.