Sealed body, light-emitting module, and method of manufacturing sealed body
摘要
說明書
When the integral intensity of the energy ray with which the sealant is irradiated is uneven in a direction perpendicular to the scanning direction of the energy ray, the sealant cannot be uniformly heated and defective sealing occurs in some cases. However, by providing a high-reflectivity region and a low-reflectivity region in accordance with the integral intensity of the energy ray, the unevenness can be compensated for and thus the sealant can be uniformly heated. Specifically, the high-reflectivity region may be provided in a portion where the integral intensity of the laser beam becomes low, and the low-reflectivity region may be provided in a portion where the integral intensity of the laser beam becomes high. Accordingly, the unevenness of the integral intensity of the energy ray can be compensated for. As a result, a highly reliable sealed body in which sealing is uniformly performed can be provided.
Since the high-reflectivity region and the low-reflectivity region are provided along the sealant, the intensity of the energy ray reflected by the high-reflectivity region toward the sealant becomes stable; thus, a condition such as the intensity of the emitted energy ray does not need to be changed according to the structure of a scanned portion. As a result, a highly reliable sealed body in which sealing is uniformly performed can be provided. Further, an energy-ray irradiation apparatus can be simplified.
Another embodiment of the present invention is the sealed body in which the high-reflectivity region and the low-reflectivity region alternately intersect the sealant, and the high-reflectivity region and the low-reflectivity region extend outside the sealant.
