Optical Bonding
  • Optical Bonding
  • Welding windows for display
  • Welding windows for display
  • Welding windows for display
  • Welding windows for display

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Manufacturer: OPTICAL FILTERS

Welding windows for display

Company DACPOL with partner OPTICA FILTERS are start promoting new service call OPTICAL BONDING. That technology provide high quality solution for bonded display with glass or other cover.

Using our background of over 25 years in display enhancement and other display bonding options Optical Filters has developed Viz-Bond®, a wet bonding system that cures to a gel, to deliver a cost effective, scalable system in which the components are processed at ambient temperature without the use of vacuum, temperature, pressure and need for multiple tooling.

Viz-Bond® cures within the wave length range of 390-500nm and can therefore cure through a polarizer and materials containing UV inhibitors. The system can also cure behind edge masks up to a 20mm (3/4") width.



Enviromental performances


Temperature
Stable under multiple ESS cycles between -55°C to +85°C with ramp rates of 3-5°C/min and dwell times at extremes of 30 minutes (minimum)

Humidity
No change after exposure to 95% R.H. at 70°C for a minimum of 50 hours

UV/solar exposure
Fill adhesive and sealing gasket are stable and show minimal changes in transmission and L.A.B. values following extensive simulated UV/Solar Exposure.
Testing to MIL-STD-810g / ASTM G151 is on-going in our own certified solar chamber.

Chemical Resistance
Viz-Bond® is stable with most silicone, polyurethane and polysulphide adhesive sealants but may be attacked by MEK, acetone, toluene or materials which utilize similar solvent systems.

Mechanical performance


Impact resistance
Enhances laminate performance to exceed the boot impact MIL-STD - 3122 and the Wrench Impact Ball drop test (1" diameter steel ball dropped from 20-25" - 6 impacts)

Shock absorption
Viz-Bond® laminates of un-tempered float glass absorb 8+ times the energy of a standard dry film laminate before failure

Vibration tolerance
In accordance with MIL-STD-810F-514.5

Adhesion - Pull
Complies with ASTM-4541, EN13144, ISO-16276-1 using a Elcometer 601 qualified test apparatus

Adhesion - Sheer
No failure of a bond to a 10.4" display with a 1000g weight suspended vertically at 85°C for 8 hours and >1000 hours at ambient

Bond thickness
0.7mm +0.2/-0.1mm typical bond thickness Measured from the surface of the display bezel (or face of the display if the bezel is not present) to the rear surface of the display enhancement stack.

Material properties


Material type
Low viscosity, UV-visible curing proprietary Alkyl Urethane

Optical
  • Photopic transmission (Pt) (measured between 2 layers of anti-reflective glass): >95%
  • Specular Reflectance @ 30° (Sr): <0.05%
  • Diffuse Reflectance @ 30° (Dr): <0.05%
  • Refractive Index: 1.51 ±0.02

Cure range
390-500 nm

Cure time
<3 minutes with exposure to 3-5milliwatts/sq cm at ambient temperatures

Viscosity (uncured)
<50 cps (Allows Viz-Bond® to be pumped into a fill cavity high rates with low pressure)

Material uniformity
A chemical fingerprint of each batch is obtained using FTIR spectrophotometer. All batches must fall within the specified finger print with a tolerance of +/-2%

Hardness / Softness
<15 Durometer scale A)

Elasticity
Young's modulus <180KPa

Shrinkage
<5% by volume




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Company DACPOL with partner OPTICA FILTERS are start promoting new service call OPTICAL BONDING. That technology provide high quality solution for bonded display with glass or other cover.

Using our background of over 25 years in display enhancement and other display bonding options Optical Filters has developed Viz-Bond®, a wet bonding system that cures to a gel, to deliver a cost effective, scalable system in which the components are processed at ambient temperature without the use of vacuum, temperature, pressure and need for multiple tooling.

Viz-Bond® cures within the wave length range of 390-500nm and can therefore cure through a polarizer and materials containing UV inhibitors. The system can also cure behind edge masks up to a 20mm (3/4") width.



Enviromental performances


Temperature
Stable under multiple ESS cycles between -55°C to +85°C with ramp rates of 3-5°C/min and dwell times at extremes of 30 minutes (minimum)

Humidity
No change after exposure to 95% R.H. at 70°C for a minimum of 50 hours

UV/solar exposure
Fill adhesive and sealing gasket are stable and show minimal changes in transmission and L.A.B. values following extensive simulated UV/Solar Exposure.
Testing to MIL-STD-810g / ASTM G151 is on-going in our own certified solar chamber.

Chemical Resistance
Viz-Bond® is stable with most silicone, polyurethane and polysulphide adhesive sealants but may be attacked by MEK, acetone, toluene or materials which utilize similar solvent systems.

Mechanical performance


Impact resistance
Enhances laminate performance to exceed the boot impact MIL-STD - 3122 and the Wrench Impact Ball drop test (1" diameter steel ball dropped from 20-25" - 6 impacts)

Shock absorption
Viz-Bond® laminates of un-tempered float glass absorb 8+ times the energy of a standard dry film laminate before failure

Vibration tolerance
In accordance with MIL-STD-810F-514.5

Adhesion - Pull
Complies with ASTM-4541, EN13144, ISO-16276-1 using a Elcometer 601 qualified test apparatus

Adhesion - Sheer
No failure of a bond to a 10.4" display with a 1000g weight suspended vertically at 85°C for 8 hours and >1000 hours at ambient

Bond thickness
0.7mm +0.2/-0.1mm typical bond thickness Measured from the surface of the display bezel (or face of the display if the bezel is not present) to the rear surface of the display enhancement stack.

Material properties


Material type
Low viscosity, UV-visible curing proprietary Alkyl Urethane

Optical
  • Photopic transmission (Pt) (measured between 2 layers of anti-reflective glass): >95%
  • Specular Reflectance @ 30° (Sr): <0.05%
  • Diffuse Reflectance @ 30° (Dr): <0.05%
  • Refractive Index: 1.51 ±0.02

Cure range
390-500 nm

Cure time
<3 minutes with exposure to 3-5milliwatts/sq cm at ambient temperatures

Viscosity (uncured)
<50 cps (Allows Viz-Bond® to be pumped into a fill cavity high rates with low pressure)

Material uniformity
A chemical fingerprint of each batch is obtained using FTIR spectrophotometer. All batches must fall within the specified finger print with a tolerance of +/-2%

Hardness / Softness
<15 Durometer scale A)

Elasticity
Young's modulus <180KPa

Shrinkage
<5% by volume




Less
Read more