OCA (Optical Clear Adhesive), commonly used in smartphones, tablets, and other electronic devices, is a type of optical clear double-sided tape. It serves as an adhesive for the display portion of touch panels, bonding various substrates such as glass, acrylic, polycarbonate, and film. Maintaining an optically uniform and transparent state is essential, as any peeling or bubble formation directly impacts display performance.

Advanced lamination that meets these requirements is crucial for enhancing product quality.

In this introduction, we present a case study from a device manufacturing company that consulted with us.

Upon comparison, we found that the cutting edge of the conventional die cutting tool (from another manufacturer) showed significant gouging on the soft OCA adhesive layer between the top and bottom PET films. In contrast, our precision cutting tool Raide Cut provided a nearly vertical and clean cut, greatly improving the quality of film lamination. As a result, the issues of film peeling and bubble formation that the manufacturer faced were resolved.

Consultation Request The client wanted to improve a phenomenon where the adhesive layer was gouged at the corners of the rectangular display, leading to bubble formation and peeling.

By adopting our precision cutting tool, even in fine areas.. We can achieve higher quality, enabling better performance under stringent conditions such as cost and functionality in device manufacturing.