| 摘要 |
<p>A composition for preparing an organic passivation layer is provided to ensure excellent coating property, surface roughness, and thin film uniformity in a forming and curing process of an organic passivation layer and to improve a barrier property to moisture and oxygen of the organic passivation layer. A composition for preparing an organic passivation layer comprises a water-soluble polymer having a hydroxyl group and aldehyde selected from dialdehyde or polyaldehyde. The water-soluble polymer is selected from water-soluble polyurethane, polyvinylalcohol, polyvinyl alcohol copolymerization polymer, water soluble acrylate resin, polyethylene glycol or their mixture. The organic thin film transistor comprises a substrate, gate electrode, organic insulating film, organic active layer, source/drain electrode and organic passivation layer.</p> |
