Optical bonding is a process that involves laminating the touch panel or cover glass directly onto the TFT LCD display using an optically clear adhesive (OCA or OCR).
Compared to traditional air bonding, this technique significantly reduces internal reflections, improves contrast and sunlight readability, and enhances the overall durability and structural integrity of the display module. MAXEN offers flexible optical bonding solutions tailored for industrial control systems, outdoor equipment, and advanced human-machine interfaces—ensuring clearer visuals and a more robust user experience.
Optical bonding significantly improves the performance and durability of display modules. By eliminating the air gap between the cover glass and the TFT LCD, it enhances sunlight readability, increases impact resistance, reduces condensation and fogging, and improves touch accuracy. This makes it an ideal solution for outdoor, industrial, and high-reliability applications.
Liquid Bonding (LOCA/OCR Bonding) uses a liquid optically clear resin (OCR) that is cured by UV light or heat to bond the cover glass and display panel. This method offers excellent gap-filling ability and superior optical clarity, making it ideal for curved or free-form designs. Its strong adhesion and high light transmittance make LOCA bonding especially recommended for outdoor applications where visibility and durability are critical.
Dry Bonding (OCA Bonding) uses an optically clear adhesive (OCA) film to bond the cover glass and display without the need for curing. This method is highly consistent, efficient, and well-suited for flat panel designs. With stable bonding quality and streamlined processing, OCA bonding is widely recommended for indoor applications where speed and uniformity are essential.
All Black Effect OCA is an optically clear adhesive designed to deliver high black uniformity when the screen is off. It effectively masks backlight bleed and internal structures, creating a seamless, premium black appearance. This type of OCA is ideal for smart home panels, automotive displays, and consumer electronics where aesthetic integration is key.
Maxen offers in-house optical bonding services to ensure high precision, quality control, and fast turnaround for your display integration needs. Equipped with advanced bonding equipment and cleanroom facilities, we support both OCA (dry bonding) and OCR/LOCA (liquid bonding) processes. Whether you're looking for improved sunlight readability, enhanced durability, or seamless design, Maxen’s optical bonding solutions deliver reliable performance across industrial, medical, and smart device applications. Custom bonding for flat or curved panels is available to meet diverse project requirements.
