αGEL Solutions Optical Bonding

Silicone OCA (Optical Clear Adhesive) OPT Alpha GEL 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.

Characteristics

●Silicone OCA: Made of high-grade silicone, this OCA boasts superior physical properties, providing more stable performance than standard acrylic materials.Compared to liquid bonding materials, OCA is much easier to handle.

●Long-term Reliability: OPT Alpha GEL shows minimal yellowing when exposed to heat and UV radiation. It has low temperature dependence, allowing OPT Alpha GEL to thrive at a wide range of temperatures.

●Elasticity: OPT Alpha GEL retains elasticity and reduces stress on display components at a wide range of temperatures. This contributes to a more uniform displayed image and improved shock resistance.

●Transparency: OPT Alpha GEL is highly transparent, improving display brightness and contrast.

●Reworkability: Displays can be reworked after bonding with OPT Alpha GEL, improving yields and reducing cost.

●Thickness(max 1.8mm) & Width(max 1,280mm) Line-up: OPT Alpha GEL is available in thickness between 0.175mm and 1.8mm. Maximum width is available by 1,280mm.
It is suitable for large scale display such as digital sinage and elctronic white display.

Application Example

Inserting OPT Alpha GEL 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.

Without αGEL

With αGEL

Benefits

Improved luminance: without
Optical Bonding

with
Optical Bonding
Reduced light loss from internal reflection

Reflection prevention, Improved contrast: without
Optical Bonding

with
Optical Bonding
Reduced sunlight reflection

Improved shock resistance: without
Optical Bonding

with
Optical Bonding
Enhanced durability due to stress mitigation

Condensation prevention: without
Optical Bonding

with
Optical Bonding
Air gap elimination

Reduced parallax: without
Optical Bonding

with
Optical Bonding
Improved touch accuracy

Mechanism

Without αGEL

With αGEL

Bonding Processes

Vacuum Lamination

Non-Vacuum Lamination (Roller Lamination with Autoclave): Laminating αGEL and Cover Lens

Laminating αGEL and LCD

Applications

Automotive

Electronics & Industry

Home & Office

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	t0.175/t0.2/t0.3/ t0.5/t0.8/t1	By 1,280mm
K95E	t1.2/t1.5/t1.8	By 1,280mm

Product Details