It is an object of the present invention to provide a functional layer for protecting a light emitting element from being deteriorated by a physical or chemical influence when the light emitting element is manufactured or driven, and to attain extension of lifetime of an element and improvement of element...http://www.google.fr/patents/US7883788?utm_source=gb-gplus-shareBrevet US7883788 - Light emitting element, light emitting device, and electronic device
Light emitting element, light emitting device, and electronic device