A glass layer 103 containing a binder, a laser-light-absorbing pigment, and a glass frit 102 is irradiated with laser light L2, so as to gasify the binder and melt the glass fit 102, thereby fixing the glass layer 103 to a glass member 104. This allows the glass layer 103 fixed to the glass member 104 to let out the binder and enhance the laser light absorptance, so as to yield a uniform state. As a result, fusing glass members 104, 105 to each other with the glass layer 103 having such a stable state interposed therebetween allows the glass members 104, 105 to have a uniform fusing state therebetween.