| 초록 |
Recently, flexible displayshave attracted an interest due to their light weight and portability. But, polymersas materials for flexible displayarenotcompatable for electronic devieces due to thierlow thermal resistance and high gas permeability.In this study, we introduce polymer substrate for flexible flat panel display such as liquid crystal display (LCD), organic light emission diode (OLED). Design of multi-layer structures using hybrid of organic-inorganic is essential because flexible substrates for OLED demand low gas permeation and high light transmittance materials. But, multi-layers have problems such as cracking when bent and a decrease of light transmittance. In this study, weinvestigated correlation between process conditions of barrier layers and optical and barrier properties of substrates. Our flexible substrates were manufactured on a full roll-to-roll process. Polyethersulfon (PES) as base film was prepared by extrusion. And then inorganic layers as gas permeation barrier were coated by reactive sputtering and wet-coating method using thermal curing for interlayer. PES substrates showed low retardation, high optical and water barrier properies. |
