A light emitting element of the invention includes n pieces of light emitting layers (n is a natural number) between first and second electrodes. A first layer and a second layer are provided between the m<th> light emitting layer (m is a natural number of 1 <m <n) and the m + 1<th> light emitting layer. The first and second layers are contacted to each other. The first layer contains a substance that transports holes easily and a substance with an electron accepting property. The second layer contains a substance that transports electrons easily and a substance with an electron donating property. Molybdenum oxide is used as the substance with the electron accepting property.
申请公布号
WO2005115060(A1)
申请公布日期
2005.12.01
申请号
WO2005JP09313
申请日期
2005.05.17
申请人
SEMICONDUCTOR ENERGY LABORATORY CO., LTD.;KUMAKI, DAISUKE;IKEDA, HISAO;ABE, HIROKO;SEO, SATOSHI