OCA Film for display lamination

OCA means “Optically Clear Adhesive”: an optically clear adhesive used to join transparent layers. This page covers adhesive products supplied as films or rolls for display assemblies. The term describes an optical function; it does not establish a uniform carrier, thickness or approval for every touch application. For example, tesa 88008 is a pressure-sensitive acrylic adhesive tape without a carrier. The construction and suitability of other products must be checked individually.

Identify both components, the optical requirement and the intended lamination process. For tesa 88008, the manufacturer names glass, polycarbonate and PMMA as possible cover materials and specifies product-specific ITO compatibility. That statement cannot be applied to other OCA films. Also provide the contact surfaces, required geometry, layer structure and how the liner will be handled. These details allow the listed material and a converted format to be assessed for the application.

The distinction depends on the documented activation and processing method of the specific product. Optically clear tesa 88008 is described as a pressure-sensitive adhesive tape. By contrast, tesa HAF is not tacky at room temperature and is activated by heat and pressure; time, temperature and pressure must be matched to the system. A film should therefore not be treated as heat activated merely because it is supplied in film form. Product data and the process at your component determine the selection.

Krückemeyer GmbH identifies die-cutting optically clear OCA films for display bonding as a manufacturing capability. For a specific die-cut part, the film, contour, liners and processing steps must work together; converting does not create an additional optical or electrical product property. Describe the layers involved, the required shape and how the part will be applied. Those details allow the suitability of a listed OCA film and the proposed supplied format to be assessed.