A sealing body of a bio application light emitting device having a bio application light emitting device having a light emitting element including an organic semiconductor or a quantum dot and a flexible substrate inside a protective bag having a metal layer. This invention can be used to seal disposable devices that can be easily attached to a large number of curved surfaces. Further, even in the case of long term storage in a high temperature and high humidity environment, deterioration of the light irradiation characteristic of the device can be suppressed at a low cost.金属層を有する保護袋の内部に、有機半導体または量子ドットを含む発光素子とフレキシブル基板とを有する生体適用光照射デバイスを有する、生体適用光照射デバイスの封止体。この発明は、曲面の多い生体に簡単に装着できる使い捨てのデバイスの封止に使える。また、高温高湿の環境下で長期保存した場合であっても、デバイスの光照射特性の劣化を安価に抑制しうる。
