Sealing composition for liquid crystal displays and process for production of liquid crystal display panels
申请人:Miyawaki Takahisa
公开号:US20060009579A1
公开(公告)日:2006-01-12
A liquid crystal sealing agent composition that is a one-component light and heat-curable resin composition containing: (1) a solid epoxy resin having a ring and ball method softening temperature of 40° C. or above; (2) an acrylate monomer and/or a methacrylate monomer, or an oligomer thereof; (3) a thermoplastic polymer having a ring and ball method softening temperature of 50 to 120° C., the thermoplastic polymer being obtained by copolymerizing an acrylate monomer and/or a methacrylate monomer with a monomer copolymerizable therewith; (4) a light-activated radical polymerization initiator; and (5) a latent epoxy curing agent. The light and heat curable liquid crystal sealing agent composition is employable in one drop fill, is excellent in properties of a cured product particularly after first-stage light curing, achieves stable cell gap after cell gap formation, permits prevention of contamination of the liquid crystal in second-stage heat curing, is excellent in curing properties in shaded area, and shows superior bonding reliability.
一种液晶密封剂组合物,它是一种单组分光热固化树脂组合物,其中含有:(1) 固体环氧树脂,其环球法软化温度为 40℃或以上;(2) 丙烯酸酯单体和/或甲基丙烯酸酯单体,或其低聚物;(3) 热塑性聚合物,其环球法软化温度为 50 至 120℃、(4) 光活化自由基聚合引发剂;以及 (5) 潜伏环氧固化剂。这种光热固化型液晶密封剂组合物可一次滴注,固化产品性能优异,特别是在第一阶段光固化后,在形成单元间隙后可获得稳定的单元间隙,在第二阶段热固化中可防止液晶受到污染,在阴影区固化性能优异,并显示出卓越的粘合可靠性。