Abstract: To develop a simple low-cost method for general microcups of electronic paper, the chosen methacrylic ester formulation consisted of some function units, such as solvent-resistance units, flexibility and adhesion promoting units, was accomplished through photo-mask lithography. The solvent-resistance units were the compact network structure obtained by crosslinked oligomers with carboxylic acid. Furthermore, the flexibility and adhesion promoting units were flexible materials obtained by polyester, urethane, isobornyl acrylate, their structures were similar to plastic substrates. Moreover, the microcup structures on glass, polyester or conductive electrode substrate were determined to possess excellent solvent-resistance and airtightness in tetrachloroethylene under 100℃, rigidity of 3H measured by pencil hardness, curl diameter from 2 to 3 mm, average T type peeling strength of 0.50 N/mm on polyester substrate, and cross-cut test value of zero grade. Therefore, the microcup structures are suitable for electrophoretic display devices on flexible substrates with tetrachloroethylene as electrophoretic medium.

Key words: photo-mask lithography, flexibility, solvent resistance, electronic paper, microcup

摘要： 采用液相光刻法，以光聚合材料体系制备了高性能电子纸微杯，研究了所用材料结构与性能的关系，并对其性能进行表征. 采用丙烯酸酯材料，以含羧酸的低聚物交联所得的网状结构为抗蚀单元，以聚酯、聚氨酯、异冰片酯单元等为柔性附着力促进单元，通过掩膜光刻法制得微杯结构. 经测定该结构在100℃下对四氯乙烯强溶剂抗蚀气密性好，铅笔硬度为3H，卷曲直径为2~3 mm，对导电聚酯基材T剥离强度(均值)达0.50 N/mm，划格附着力达0级，适用于玻璃、聚酯基材上四氯乙烯为电泳介质的微杯电泳显示．

关键词: 掩膜光刻, 柔性, 抗蚀性, 电子纸, 微杯