A light emitting element containing an organic compound has a defect that the light emitting element is easily deteriorated by various factors; therefore, it is the biggest issue of the light emitting element that the light emitting element is formed with high reliability (longer lifetime). An objective of the present invention is to reduce or eliminate generation of the above described various defective modes of the light emitting element containing an organic compound. According to the present invention, current efficiency-luminance characteristics can be improved by orienting organic compound molecules in an applying direction of current. In addition, deterioration can be prevented by using a crystallization inhibitor.

 
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