Adhesive injection apparatus and method

Adhesive injection apparatus, designed to inject an adhesive (E) into gaps between a plurality of layers of flat plate members (25), includes: a receptacle (18) for holding therein the flat plate members; an evacuation section (19) for evacuating the interior of the receptacle and the gaps between the flat plate members; an adhesive supply section (12) for supplying the adhesive into the receptacle; and a gas introduction section (20) for introducing a gas into the receptacle to produce a pressure difference between the interior of the receptacle and the gaps between the flat plate members, so as to allow the adhesive to be injected from all around the flat plate members into the gaps.