What is Optical Bonding?

The process of applying an optical clear liquid to a digital display, such as LCD or plasma, to bond a cover glass and/or touch sensor to eliminate the air gap between each layer. This provides improved image clarity, especially in outdoor or bright light environments.

When to Use Optical Bonding

The optical bonding process is ideal for producing screens that are highly durable and will stand up to harsh environments. Screens that are assembled using an optical bonding process will also have increase touched reliability. This is a result of higher pressure accuracy through the substrate.

Benefits of Optical Bonding

  • Better bonding
  • Decreased refraction
  • Improved touch responsiveness
  • Increased durability
  • Eliminates air pockets
  • Reduced glare

Recommended Optical Bonding Valves

PVA offers a variety of optical bonding equipment including the valves below.

PDP Series Progressive Cavity Dual Pump product shot on white background

PDP

Dispensing, Encapsulation & Glob Top, Gasketing, Meter Mix, Potting, Staking, Thermal Interface Materials
PC200 product shot on white background

PC200R-SS

Dispensing, Encapsulation & Glob Top, Gasketing, Potting

Questions about your optical bonding process?

Talk to the PVA Experts

Sample Optical Bonding Line

PDP Series Progressive Cavity Dual Pump product shot on white background

PDP

Dispensing, Encapsulation & Glob Top, Gasketing, Meter Mix, Potting, Staking, Thermal Interface Materials
FC100 Stainless Steel - Front Closing High-Pressure Valve product shot on white background

FC100 Series

Dam & Fill, Dispensing, Encapsulation & Glob Top, Gasketing, Masking, Staking
Spectra UV Curing Oven

Spectra

Conformal Coating, Dispensing, Masking
Events
Feb 6, 2025

LCD Display Dispensing Case Study