OCA, short for Optically Clear Adhesive, is a specialized adhesive specifically designed for bonding transparent optical components such as lenses and display panels. Boasting exceptional clarity, it features a light transmittance of over 95%, excellent bonding strength, curability at room or moderate temperatures, and low curing shrinkage—key properties that make it indispensable in optical applications.
As a core raw material in touchscreen manufacturing, OCA optical adhesive is produced from optical-grade acrylic resin through a substrate-free process, with release films laminated on both its upper and lower surfaces. This makes it a high-performance double-sided adhesive tape without a base carrier, perfectly suited for the precise bonding needs of touch panel production.
OCA offers a range of remarkable advantages: it delivers high transparency and light transmittance, strong UV resistance, and precisely controlled thickness to ensure uniform gap control. Additionally, it exhibits excellent resistance to delamination and aging, reduces glare, minimizes light loss from LCD panels, enhances screen brightness and transmittance, lowers power consumption, and improves display contrast—solidifying its position as the preferred adhesive for touch panel manufacturing.
In the field of OCA lamination applications, TIPTOP has accumulated extensive experience and built a proven track record in the R&D and manufacturing of OCA laminating equipment. Backed by its professional equipment technologies, TIPTOP is committed to providing reliable solutions and comprehensive technical support for high-efficiency, high-precision OCA lamination processes, empowering the stable development of the industry.
As a critical material in the display industry chain, OCA optical adhesive is witnessing rapid growth globally and in China, with a steady growth rate of 8%–16%. The industry is currently evolving toward ultra-thinness, high transparency, weather resistance, and flexibility, with automotive displays and emerging display applications emerging as core growth drivers.
Domestically, continuous breakthroughs are being made in OCA materials and related equipment—such as TIPTOP’s OCA laminating equipment—accelerating the process of industrial self-sufficiency and independent control, and injecting new vitality into the healthy development of the global display industry.
