αGEL Solutions Optical Bonding


Silicone OCA (Optical Clear Adhesive) provides the long-lasting quality required in the automotive industry. This soft, yellowing resistant material allows for re-working of bonding defects and is available in a variety of thicknesses (max 1.8 mm). Taica proposes total optical bonding solutions to our customers, including advice regarding bonding and die cutting.
Advantages of αGEL silicone OCA
- ●High weather resistance
- Silicone OCA posses high yellowing resistance from heat and ultraviolet. It also has low temperature dependence, which implements long-life performance in wide range of temperature.
- ●High gas permeability
- The gas permeability of the Silicone OCA is high enough to release the outgas caused by plastic materials, and reduces risk of bubble occurrence.
- ●Stable Viscoelasticity
- With its low temperature dependence, Silicone OCA enables stable performance in wide range of temperature(-40℃ to 200℃). In addition, its' vibration transmission ability works well in a specific frequency range . This feature is expected to add values in various of applications. (ex: HMI)
- ●Unique refractive index
- Silicone OCA reduces refractions on surface of displays. This can prevent light reflection and image distortion. This feature is especially valuable to reflective displays which requires in-plain uniformity of the light diffusion. In this application, the Silicone OCA works as a light guiding panel providing increased brightness through its unique refractive index.
- ●Excellent flexibility
- Excellent flexibility of Silicone OCA suppresses displays' mura and improves durability.
- ●High weather resistance
- Silicone OCA posses high yellowing resistance from heat and ultraviolet. It also has low temperature dependence, which implements long-life performance in wide range of temperature.
- ●Stable Viscoelasticity
- With its low temperature dependence, Silicone OCA enables stable performance in wide range of temperature(-40℃ to 200℃). In addition, its' vibration transmission ability works well in a specific frequency range . This feature is expected to add values in various of applications. (ex: HMI)
- ●Excellent flexibility
- Excellent flexibility of Silicone OCA suppresses displays' mura and improves durability.
- ●High gas permeability
- The gas permeability of the Silicone OCA is high enough to release the outgas caused by plastic materials, and reduces risk of bubble occurrence.
- ●Unique refractive index
- Silicone OCA reduces refractions on surface of displays. This can prevent light reflection and image distortion. This feature is especially valuable to reflective displays which requires in-plain uniformity of the light diffusion. In this application, the Silicone OCA works as a light guiding panel providing increased brightness through its unique refractive index.
resistance>
Viscoelasticity>
flexibility>
permeability>
refractive index>
- ■High weather resistance
ーHigh transparency even in harsh environmentsー - Silicone OCA posses high yellowing resistance from heat and ultraviolet. It also has low temperature dependence, which implements long-life performance in wide range of temperature.
-
*Digital signage - Silicone OCA posses high yellowing resistance from heat and ultraviolet. It also has low temperature dependence, which implements long-life performance in wide range of temperature.
- [Benefits]
-
Stable performance
(High and low temperature) -
Yellowing
resistance -
Yellowing
resistance
Silicone OCA(αGEL)

Acrylic OCA(Competitor)

*Images show yellowing of the displays after environmental testing
- ■Stable Viscoelasticity
ーStable viscoelasticity in wide range of temperatureー - With its low temperature dependence, Silicone OCA enables stable performance in wide range of temperature(-40℃ to 200℃). In addition, its' vibration transmission ability works well in a specific frequency range . This feature is expected to add values in various of applications. (ex: HMI)
-
*Haptic feedback display in automotives - With its low temperature dependence, Silicone OCA enables stable performance in wide range of temperature(-40℃ to 200℃). In addition, its' vibration transmission ability works well in a specific frequency range . This feature is expected to add values in various of applications. (ex: HMI)
- [Benefits]
-
Stable performance
(High and low temperature) -
Haptic feedback
characteristics
Silicone OCA(αGEL)

Acrylic OCA(Competitor)


*Temperature dependence data of dynamic viscoelasticity
- ■Excellent flexibility
ーExcellent shock absorption and gap-filling abilityー - Excellent flexibility of Silicone OCA suppresses displays' mura and improves durability.
-
*Industrial tablet - Excellent flexibility of Silicone OCA suppresses displays' mura and improves durability.
- [Benefits]
-
Shock resistance
-
Stress relief
Silicone OCA(αGEL)

Acrylic OCA(Competitor)

*Image of display mura in environmental testing
- ■High gas permeability
ーBubble occurence reduced by its gas permeabilityー - The gas permeability of the Silicone OCA is high enough to release the outgas caused by plastic materials, and reduces risk of bubble occurrence.
-
*Curved/3D display - The gas permeability of the Silicone OCA is high enough to release the outgas caused by plastic materials, and reduces risk of bubble occurrence.
- [Benefits]
-
High gas permeability
-
Bubble occurrence prevention
Silicone OCA(αGEL)

Acrylic OCA(Competitor)

*Image of bubble occurrence after environmental testing
(polycarbonate/OCA/polycarbonate, 95°C x 12 hours)
- ■Unique refractive index
ーEnhancement in visibility(brightness) by light diffusionー - Silicone OCA reduces refractions on surface of displays. This can prevent light reflection and image distortion. This feature is especially valuable to reflective displays which requires in-plain uniformity of the light diffusion. In this application, the Silicone OCA works as a light guiding panel providing increased brightness through its unique refractive index.
-
*E-paper - Silicone OCA reduces refractions on surface of displays. This can prevent light reflection and image distortion. This feature is especially valuable to reflective displays which requires in-plain uniformity of the light diffusion. In this application, the Silicone OCA works as a light guiding panel providing increased brightness through its unique refractive index.
- [Benefits]
-
Refractive index 1.41
-
Light diffusion
Silicone OCA(αGEL)

Acrylic OCA(Competitor)

*Image of visibility in reflective display used outdoor
Applications
Products

- Silicone OCA
- A silicone Optical Clear Adhesive (OCA) that fills air gaps between components in LCD displays, improving brightness and contrast.
Product | Thickness(mm) | Width(mm) |
---|---|---|
K120E(-D) | t0.175/t0.2/ t0.25/t0.3/t0.5 |
460 |
K120E(-D) | t0.8/t1.0 | 440 |
K95E(-D) | t1.2/t1.5/t1.8 | 400 |
Product Details
Product Details
