FatigueFatigue testing plays a critical roleRole in the development and evaluation of advanced electronic systems, particularly in applications such as rollable, flexible, and wearable displays. These technologies are increasingly prevalent in consumerConsumer electronics, where end-users may frequently bend, fold, unravel, or re-roll the display during its operational lifetime. As a consequence, the materials used in these devices are subjected to repeated mechanical deformation, which imposes cyclicCyclic stressStress and strainStrain on both the substrateSubstrate and the functionalFunctional layers deposited on it. From a mechanical engineering standpoint, such cyclicCyclic loadingLoading leads to the initiation and propagationPropagation of microstructural defects, including dislocations, micro-cracksCrack, and delamination at interfacesInterface, which can severely impair mechanical integrity.