| 摘要 |
An objective is to increase the reliability of a light emitting device structured by combining TFTs and organic light emitting elements. A TFT ( 1201 ) and an organic light emitting element ( 1202 ) are formed on the same substrate ( 1203 ) as structuring elements of a light emitting device ( 1200 ). A first insulating film ( 1205 ) which functions as a blocking layer is formed on the substrate ( 1203 ) side of the TFT ( 1201 ), and a second insulating film ( 1206 ) is formed on the opposite upper layer side as a protective film. In addition, a third insulating film ( 1207 ) which functions as a barrier film is formed on the lower layer side of the organic light emitting element ( 1202 ). The third insulating film ( 1207 ) is formed by an inorganic insulating film such as a silicon nitride film, a silicon oxynitride film, an aluminum nitride film, an aluminum oxide film, or an aluminum oxynitride film. A fourth insulating film ( 1208 ) and a partitioning layer ( 1209 ) formed on the upper layer side of the organic light emitting element ( 1202 ) are formed using similar inorganic insulating films.
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