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αGEL Products
Silicone OCA
A silicone Optical Clear Adhesive (OCA) that fills air gaps between components in LCD displays, improving brightness and contrast. It is highly resistant to yellowing and shows excellent long-term performance. We sell Silicone OCA in sheets, making it both easy to handle and highly reworkable.
- Characteristics
- ●Made of high-grade silicone, this OCA boasts superior physical properties, providing stable performance.
- ●Silicone OCA shows minimal yellowing when exposed to heat and UV radiation. It has low temperature dependence, allowing Silicone OCA to thrive at a wide range of temperatures.
- ●Silicone OCA retains elasticity and reduces stress on display components. This contributes to a more uniform displayed image and improved shock resistance.
- ●Displays can be reworked after bonding with Silicone OCA, improving yields and reducing cost.
- ●Silicone OCA is available in thicknesses between 0.175 mm and 1.8 mm.
- ●The maximum width of Silicone OCA is by 1,280mm. It is suitable for large scale display.
- Application Example
- Inserting Silicone OCA between an LCD unit and the cover lens has many benefits, such as improved shock resistance, stress mitigation, increased contrast, reduced parallax, and improved luminance.
- Technical Information
-
[Transparency (yellowing) long term reliability data (temperature testing)]
[Transparency (yellowing) long term reliability data (UV irradiation testing)]
- Product・Packaging
Physical Property Data
*Please swipe left or right to view table below.
[Properties]
| characteristics | Items | Method | Condition① | Condition② | Unit | K120E (-D) |
K95E (-D) |
Notes |
|---|---|---|---|---|---|---|---|---|
| Mechanical Properties |
Hardness | Penetrometer | Cup：40ml | − | 1/10mm | 120 | 95 | JIS K 2207 |
| Young's Modulus | Tensile Tester | φ30mm×t12.7mm | 1mm/min（Compression） | kPa | 22 | 48 | Compressive elastic modulus | |
| Tensile strength at break |
Tensile Tester | K120E：t1.0mm K95E：t1.8mm |
200mm/min | % | 1265 | 1050 | JIS K 6815-1 | |
| Viscoelasticity tanδ | Viscoelasticity measuring device | φ25mm×t1.8mm @10Hz |
20℃ | − | 0.54 | 0.45 | − | |
| 100℃ | − | 0.56 | 0.45 | |||||
| Optical Properties |
Total light transmittance | Haze Meter | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | % | 92.7 | 92.5 | JIS K 7136 |
| 95℃×1000h | % | 92.5 | 91.5 | |||||
| 85℃_85%×1000h | % | 92.4 | 92.2 | |||||
| Spectral light transmittance | Spectrophotometer | K120E：t0.5mm K95E：t1.8mm |
380nm | % | 91 | 91 | JIS K 7105 | |
| 780nm | % | 91 | 91 | |||||
| b* value | Spectrophotometer | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | − | 0.14 | 0.20 | ||
| 95℃×1000h | − | 0.39 | 0.86 | |||||
| 85℃_85%×1000h | − | 0.27 | 0.36 | |||||
| Haze | Haze Meter | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | % | 0.24 | 0.42 | JIS K 7136 | |
| 95℃×1000h | % | 0.33 | 0.61 | |||||
| 85℃_85%×1000h | % | 0.31 | 0.60 | |||||
| Refractive index | Abbe refractometer | 25×25×t0.5mm | 23℃/589nm | − | 1.41 | 1.41 | JIS K 7142 | |
| Others | Specific Gravity | Electronic gravimeter: | φ30mm×t12.7mm | − | − | 0.98 | 0.98 | − |
| characteristics | Items | Method | Condition① | Condition② | Unit | K120E (-D) |
K95E (-D) |
Notes |
|---|---|---|---|---|---|---|---|---|
| Mechanical Properties |
Hardness | Penetrometer | Cup：40ml | − | 1/10mm | 120 | 95 | JIS K 2207 |
| Young's Modulus | Tensile Tester | φ30mm×t12.7mm | 1mm/min（Compression） | kPa | 22 | 48 | Compressive elastic modulus | |
| Tensile strength at break |
Tensile Tester | K120E：t1.0mm K95E：t1.8mm |
200mm/min | % | 1265 | 1050 | JIS K 6815-1 | |
| Viscoelasticity tanδ | Viscoelasticity measuring device | φ25mm×t1.8mm @10Hz |
20℃ | − | 0.54 | 0.45 | − | |
| 100℃ | − | 0.56 | 0.45 | |||||
| Optical Properties |
Total light transmittance | Haze Meter | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | % | 92.7 | 92.5 | JIS K 7136 |
| 95℃×1000h | % | 92.5 | 91.5 | |||||
| 85℃_85%×1000h | % | 92.4 | 92.2 | |||||
| Spectral light transmittance | Spectrophotometer | K120E：t0.5mm K95E：t1.8mm |
380nm | % | 91 | 91 | JIS K 7105 | |
| 780nm | % | 91 | 91 | |||||
| b* value | Spectrophotometer | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | − | 0.14 | 0.20 | ||
| 95℃×1000h | − | 0.39 | 0.86 | |||||
| 85℃_85%×1000h | − | 0.27 | 0.36 | |||||
| Haze | Haze Meter | K120E：t0.5mm K95E：t1.8mm |
Room Temperature | % | 0.24 | 0.42 | JIS K 7136 | |
| 95℃×1000h | % | 0.33 | 0.61 | |||||
| 85℃_85%×1000h | % | 0.31 | 0.60 | |||||
| Refractive index | Abbe refractometer | 25×25×t0.5mm | 23℃/589nm | − | 1.41 | 1.41 | JIS K 7142 | |
| Others | Specific Gravity | Electronic gravimeter: | φ30mm×t12.7mm | − | − | 0.98 | 0.98 | − |
※Silicone oil may bleed depending upon conditions.
※Low molecular siloxane is included in this product which basically composed of silicone.
※Above data are measured data, not guaranteed specifications.
■Transmittance after
environmental test
（Result after 1000 hours）
*Please swipe left or right to view table below.
| Measurement wavelength |
Initial | High temperature exposure |
Hot and humid climate |
Heat cycle | Light resistance |
Low temperature storage |
|---|---|---|---|---|---|---|
| 85℃ | 60℃× 90%RH |
-40℃ ⇔85℃ |
150W /m2 |
-40℃ | ||
| 400nm | 91 | 91 | 91 | 91 | 91 | 91 |
| 800nm | 91 | 91 | 91 | 91 | 91 | 91 |
| Measurement wavelength |
Initial | High temperature exposure |
Hot and humid climate |
Heat cycle | Light resistance |
Low temperature storage |
|---|---|---|---|---|---|---|
| 85℃ | 60℃× 90%RH |
-40℃ ⇔85℃ |
150W /m2 |
-40℃ | ||
| 400nm | 91 | 91 | 91 | 91 | 91 | 91 |
| 800nm | 91 | 91 | 91 | 91 | 91 | 91 |
Unit：％
■Peel strength（Peel3）
| Time after lamination（h） |
PMMA | Tempered glass |
|---|---|---|
| 0 | 6.2 | 8.8 |
| 120 | 12.8 | 14.6 |
| 500 | 13.4 | 14.4 |
| 1000 | 13.4 | 14.4 |
| Time after lamination（h） |
PMMA | Tempered glass |
|---|---|---|
| 0 | 6.2 | 8.8 |
| 120 | 12.8 | 14.6 |
| 500 | 13.4 | 14.4 |
| 1000 | 13.4 | 14.4 |
Unit：N/20mm
Product Map
*Please swipe left or right to view table below.
| Item | Thickness（mm） | Width（mm） | Length（M） | Core（inch） | Liner | Adhesion Strength vs liner（N/20mm） | ||
|---|---|---|---|---|---|---|---|---|
| Liner | Effective | Peel1 （Weak Adhesion） |
Peel2 （Strong Adhesion） |
|||||
| K120E (-D) |
t0.175/t0.2/t0.25/ t0.3/t0.5 |
500 | 460 | 50 | 3/6 | Liner on one-side |
0.05 | 0.7 |
| K120E (-D) |
t0.8/t1.0 | 500 | 440 | 25 | 3/6 | Liner on one-side |
0.05 | 0.7 |
| K95E (-D) |
t1.2/t1.5/t1.8 | 500 | 400 | 25 | 3/6 | Liner on one-side |
0.03 | 0.5 |
| Item |
|---|
| K120E (-D) |
| K120E (-D) |
| K95E (-D) |
| Thickness（mm） | Width（mm） | Length（M） | Core（inch） | Liner | Adhesion Strength vs liner（N/20mm） | ||
|---|---|---|---|---|---|---|---|
| Liner | Effective | Peel1（Weak Adhesion） | Peel2（Strong Adhesion） | ||||
| t0.175/t0.2/t0.25/ t0.3/t0.5 |
500 | 460 | 50 | 3/6 | Liner on one-side | 0.05 | 0.7 |
| t0.8/t1.0 | 500 | 440 | 25 | 3/6 | Liner on one-side | 0.05 | 0.7 |
| t1.2/t1.5/t1.8 | 500 | 400 | 25 | 3/6 | Liner on one-side | 0.03 | 0.5 |
Notes
- Vacuum Lamination
-
- Non-Vacuum Lamination (Roller Lamination with Autoclave)
-
Laminating αGEL and Cover Lens
LCDとLaminating αGEL and LCD
- Customization
- We also develop custom products to meet our customers’ individual needs. Contact us today!
