19‐2: A Novel Investigation of Aluminum Corrosion Induced by the Components in Polarizer for OLED Displays

OLED is one of the most promising and emergent flat display technologies, in which polarizer plays a key component to eliminate the interference from ambient light. With the demands of making thinner module structures, the stacking of polarizer is required to make corresponding layer adjustments. In this paper, we have elaborated on the potential issues of aluminum corrosion in touch layer that may arise after the thinning of polarizers, and have analyzed the possible reasons of this phenomenon. The probably main sources of aluminum corrosion are as follows: (1) iodine or iodide ions in PVA, (2) protons generated from cationic polymerization, and trifluoromethanesulfonamide (TFSI‐) from the antistatic agent. Based on this, we have proposed some possible improvement suggestions and make forwards some new directions for the future development of polarizers.