Application |
- Attaching cover glass to display panel. - Attaching touch panel to display panel. |
- Attaching cover glass to display panel. - Attaching touch panel to display panel. |
---|---|---|
Bonding process |
• UV-thermal curing method Thermal curing condition : 55℃, 30min |
• UV-thermal hybrid curing method Pre-curing : 800mJ/㎠ (365nm, LED lamp) Final-curing : Auto clave(60℃, 15min) |
Advantages |
- Able to fully cure the light-blocked area. - Guarantee the curing ratio under the black matrix(over 90%). |
- Able to fully cure the light-blocked area. - Guarantee the curing ratio under the black matrix(over 90%). - After UV pre-curing, the total area can be cured by auto-clave process(thermal curing). |
Item | Unit | Reliability Test | UV-thermal | UV-thermal(Hybrid process) | |
---|---|---|---|---|---|
MRH5540D | MRH4860DH | ||||
Curing dosage (@90%) | mJ/㎠ | - | 350 | - | |
Curing dosage (@95%) | mJ/㎠ | - | 450 | - | |
Thermal curing time (70℃/5min) | % | - | 91.7 | - | |
Pre-curing dosage(LED 365nm) | To glass | mJ/㎠ | - | - | 800 ± 100 |
To pol | mJ/㎠ | - | - | 1300 ± 100 | |
Thermal curing time after UV cure (@70℃) | min | - | - | 10 | |
Viscosity | cPs | - | 4,400 | 8,200 | |
Refractive index | - | - | 1.48 | 1.47 | |
Density | g/cc | - | 0.9520 | 0.8977 | |
Density | g/cc | - | 0.9868 | 0.9321 | |
Shrinkage | % | - | 3.53 | 3.69 | |
Hardness | - | - | 92 | 57 | |
Modulus | Pa | - | 1.68E+06 | 1.8E+05 | |
Adhesiveshear strength | Glass to glass | Pa | 0 hr | 1.0E+07 | 1.2E+06 |
500 hrs | 1.6E+07 | 1.9E+06 | |||
Glass to pol | 0 hr | 3.5E+06 | 1.0E+06 | ||
500 hrs | 7.8E+06 | 1.9E+06 | |||
Flexural Strength | N/㎠ | 0 hr | 14.46 | - | |
500 hrs | 18.04 | - | |||
CTE (above Tg) | ppm | 0 hr | 640 | 640 | |
500 hrs | 750 | 710 | |||
Dielectric constant | - | 0 hr | 2.25 | 2.85 | |
500 hrs | 2.54 | 2.44 | |||
Refractive index | - | - | 1.48 | 1.47 | |
transmittance | % | 0 hr | 99.99 | 99.5 | |
500 hrs | 99.35 | 99.2 | |||
Haze | % | 0 hr | 0.02 | 0.02 | |
500 hrs | 0.01 | 0.37 | |||
Yellowish | - | 0 hr | 0.06 | 0.02 | |
500 hrs | 0.1 | 0.23 | |||
- | 0 hr | 0.01 | 0.01 | ||
500 hrs | 0.01 | 0.01 |