Application |
- Attaching cover glass to display panel. - Attaching touch panel to display panel. |
---|---|
Bonding process |
• Step curing method Pre-curing dosage: 300~2,000mJ/㎠ |
Advantages |
- Curing adhesives under the light-blocked area(under black matrix). - The quantity of over-flow is controllable quantitatively. |
Item | Unit | Reliability Test | MRH6140H | MRH6631H | MRH7640H |
---|---|---|---|---|---|
Pre-curing dosage | mJ/㎠ | - | 1000 | 300 | 500 |
Main-curing dosage (@95%, LED 365nm) | mJ/㎠ | - | 1500 | 1700 | 2000 |
Curing rate under black matrix | % | - | 75.6 | 82.5 | 79.2 |
Viscosity | cPs | - | 7000 | 6000 | 6000 |
Refractive index | - | - | 1.47 | 1.47 | 1.47 |
Density | g/cc | - | 0.8795 | 0.8849 | 0.8699 |
Density | g/cc | - | 0.8966 | 0.9029 | 0.8837 |
Shrinkage | % | - | 1.91 | 1.98 | 1.56 |
Hardness | - | - | 33 | 11 | 3 |
Modulus | Pa | - | 1.1E+04 | 1.4E+04 | 8.9E+03 |
Adhesive Shear Strength(Glass to Glass) | Pa | 0 hr | 8.2E+05 | 7.2E+05 | 7.1E+05 |
500 hrs | 8.4E+05 | 8.8E+05 | 8.0E+05 | ||
CTE(above Tg) | ppm | 0 hr | 520 | 740 | 800 |
500 hrs | 670 | 720 | 760 | ||
Dielectric constant | - | 0 hr | 2.75 | 2.56 | 2.78 |
500 hrs | 2.77 | 2.55 | 2.73 | ||
Refractive index | - | - | 1.47 | 1.47 | 1.47 |
transmittance | % | 0 hr | 99.7 | 99.5 | 99.5 |
500 hrs | 99.6 | 99.2 | 98.3 | ||
Haze | % | 0 hr | 0.03 | 0.01 | 0.01 |
500 hrs | 0.09 | 0.01 | 0.02 | ||
Yellowish | - | 0 hr | 0.02 | 0.01 | 0.01 |
500 hrs | 0.49 | 0.39 | 0.48 |