Bonding method and bonding device of substrates and manufacturing method of a liquid crystal display device

A substrate bonding method comprising:

• securing a mask, having a recessed section at a center part thereof and substrate sticking-use through-holes at parts other than the recessed section, on at least one of a pair of mutually facing surface plates by applying vacuum suction through substrate attracting holes in at least one surface plate so that the recessed section of the mask faces the other surface plate;
• sticking and securing a substrate to the surface plate having a mask secured thereon through the substrate sticking-use through-holes in the mask by applying vacuum suction through substrate attracting holes formed in the surface plate;
• sandwiching the substrate and a second substrate positioned one upon another between the surface plates with the mask therebetween so as to sandwich an ultraviolet-curing resin between the substrates;
• and
• irradiating the ultraviolet-curing resin through ultraviolet irradiation-use through-holes formed in at least one of the surface plates and the mask, so as to bond the substrates together.

A substrate bonding device comprising:

• a pair of mutually facing surface plates for sandwiching a pair of substrates positioned one upon another;
• and
• a mask placed on at least one of the surface plates,
• wherein the mask includes a recessed section formed at a center part of its surface facing the substrate and substrate sticking-use through-holes at parts other than the recessed section, and
• wherein mutually facing surfaces of the surface plates includes substrate attracting holes for securing the substrate to the surface plate by vacuum suction at positions corresponding to the substrate sticking-use through-holes, and mask attracting holes for securing the mask to the surface plate by vacuum suction at positions in contact with the mask, and
• wherein the surface plate and the mask are provided with ultraviolet irradiation-use through-holes for irradiating a ultraviolet-curing resin on the substrate.

A manufacturing method of a liquid crystal display device, comprising:

• securing a pair of masks, each having a recessed section at a center part thereof, on a pair of mutually facing surface plates by applying vacuum suction through substrate attracting holes in the surface plates so that the recessed sections of the masks face each other;
• sandwiching a pair of substrates positioned one upon another between the surface plates with the masks therebetween so as to sandwich an ultraviolet-curing resin between the substrates;
• irradiating the ultraviolet-curing resin through ultraviolet irradiation-use through-holes formed in at least one of the surface plates and the mask which is secured to the surface plate, so as to bond the substrates together;
• and
• introducing liquid crystals between the substrates.

A manufacturing method of a liquid crystal display device, comprising:

• securing a mask, having a recessed section at a center part thereof and substrate sticking-use through-holes at parts other than the recessed section, on at least one of a pair of mutually facing surface plates by applying vacuum suction through substrate attracting holes in the surface plate so that the recessed section of the mask faces the other surface plate;
• sticking and securing the substrate to the surface plate through the substrate sticking-use through-holes in the mask by performing vacuum suction from substrate attracting holes formed in the surface plate;
• sandwiching the pair of substrates positioned one upon another between the surface plates with the mask therebetween so as to sandwich an ultraviolet-curing resin between the substrates;
• and
• irradiating the ultraviolet-curing resin through ultraviolet irradiation-use through-holes formed in at least one of the surface plates and the mask secured to the surface plate, so as to bond the substrates together;
• and
• introducing liquid crystals between the substrates.