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Imaging and displays > e-book > optical coatings for imaging and displays Latest Technology Trends Testing Equipment The quality and reliability of the optical-coating process, particularly when used for precision imaging and display technology applications, is very critical to ensure that the products deliver the best features and characteristics. To ensure this, reliability testing is performed to ensure that the intrinsic properties of the applied coating materials are within specified tolerance ranges.

The force applied in a normal direction where the first coating failures are exhibited is called the critical load (Lc) and defines how strong the adhesion of the coating and the substrate surface is. Scratch Testers One of the most important reliability tests for thin-film optical coatings is adhesion, which is defined as the interfacial forces between the surface of the coating and the surface of the substrate where it comes into contact. Scratch testers are one of the most common and accurate methods to test for adhesion, and this is performed using scratch testing equipment that utilize Rockwell diamond tips to apply the scratching force.

Roll-up Banners for Trade Shows / Product Displays Roll-up banners (and their accompanying banner stands) are some of the most common elements seen in product presentations, product displays, trade shows and conferences. The stands allow banners to be conveniently displayed almost anywhere and can also be easily transported to and from the event. Using the roll-up potential presented by flexible flat screens will revolutionize how future display banners are made and presented. 2 Portable banner for use at tradeshows or product showcases Flexible display screens used for roll-up banner applications would be truly revolutionary.

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