SEALING COMPOSITION FOR LIQUID CRYSTAL DISPLAYS AND PROCESS FOR PRODUCTION OF LIQUID CRYSTAL DISPLAY PANELS

摘要

The sealing composition for liquid crystal displays according to the invention is characterized by consisting of a one-pack type photo- and thermo-setting resin composition comprising (1) a solid epoxy resin having a softening point of 40°C or above as determined by ring and ball method, (2) an acrylate ester monomer and/or a methacrylate ester monomer or an oligomer thereof, (3) a thermoplastic polymer obtained by copolymerizing an acrylate ester monomer and/or a methacrylate ester monomer with a monomer copolymerizable therewith and having a softening point of 50 to 120°C as determined by ring and ball method, (4) a photoradical polymerization initiator, and (5) a latent epoxy curing agent. The photo- and thermo-setting sealing composition for liquid crystal displays is applicable to the dispenser method, can give a cured product having excellent characteristics through photosetting in the first step, and permits the formation of stable cell gaps. Further, the sealing composition is inhibited from polluting liquid crystal in thermosetting in the second step and attains excellent setting properties in the shaded areas and high adhesion reliability.