Apple is using material science to solve the crease problem of foldable devices, focusing on how the iPhone Fold display handles stress with adhesive layers rather than the hinge. Industry research from TrendForce suggests that a new approach is emerging that treats the display as a layered system. This is due to repeated bending shifting of the neutral layer inside the display stack, creating localized strain and micro-deformation that becomes visible over time. The use of adhesive layers for holding the display together and maintaining its shape under pressure is becoming more sophisticated. The most significant progress is in the development of flexible surfaces, with advances in adhesive engineering and stress management improving the devices' durability.