By the method of manufacturing a sealed body according to one embodiment of the present invention, the efficiency of heating the sealant with the energy ray can be adjusted with the ratio of the area of the low-reflectivity region to the area of the high-reflectivity region because the high-reflectivity region and the low-reflectivity region are alternately provided on the first substrate so as to overlap with the sealant. As a result, a method of manufacturing a highly reliable sealed body in which sealing is uniformly performed can be provided.
Another embodiment of the present invention is the method of manufacturing a sealed body, in which the scanning speed of the energy ray with which the sealant is irradiated from the second substrate side in a portion where the ratio of the area of the low-reflectivity region to the area of the high-reflectivity region is low is higher than that in a portion where the ratio of the area of the low-reflectivity region to the area of the high-reflectivity region is high.