“…In response to these changes, many different studies on the various elements of display devices, such as cover windows, touch sensors, substrates, transistors, and light-emitting layers, among others, have been conducted to ensure flexibility, leading to commercialization. − Among them, the optical adhesive film that bonds the substrates constituting the display also requires development to enhance its properties so that it can withstand external forces such as folding and rolling. Many studies have noted the advantages of the optical adhesive film in displays; it promotes accurate color and full-screen brightness of the image emitted from the light-emitting module while contributing to the high impact strength of the display by firmly attaching the substrate. − However, because of consumer demands for innovation, the form factor of electronic devices has changed and the thickness has decreased considerably, threatening the durability of the display itself. The thinner the object, the better the bending performance, as a lower radius of curvature can be achieved.…”