Electroluminescent device
AssigneeCanon Kabushiki Kaisha
InventorsKen Eguchi, Haruki Kawada, Yukuo Nishimura
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Abstract
An electroluminescent device comprises a luminescent layer and a pair of electrodes between which the luminescent layer is sandwiched, said luminescent layer comprising one layer comprising a relatively electron-acceptable organic compound and a compound capable of being an electron-donor or electron-acceptor to said compound, another layer comprising a relatively electron-donative organic compound and a compound capable of being an electron-acceptor or electron-donor to said compound, and still another layer having electrical insulating property, said three layers being repeatedly accumulated, and at least one of the three layers having a monomolecular film or a monomolecular layer built-up film.
Claims56
An electroluminescent device which comprises a luminescent layer and a pair of electrodes, said luminescent layer comprising a first layer comprising a relatively electron-acceptable organic compound and a compound capable of being an electron-donor to said electron-acceptable organic compound, a second layer comprising a relatively electron-donative organic compound and a compound capable of being an electron-acceptor to said electron-donative organic compound, and a third layer having electrical insulating property, said three layers being repeatedly accumulated at least twice, and at least one of the three layers being formed of a Langmuir-Blodgett monomolecular film or a Langmuir-Blodgett monomolecular layer built-up film.
An electroluminescent device which comprises a luminescent layer and a pair of electrodes, said luminescent layer comprising a first layer comprising a relatively electron-acceptable organic compound and a compound capable of being an electro-donor to said electron-acceptable organic compound, a second layer comprising a relatively electron-donative organic compound and a compound capable of being an electron-acceptor to said electron-donative organic compound, and a third layer having electrical insulating property, said three layers being successively overlaid in the direction of from one electrode to the other electrode on another third layer, said three layers being accumulated at least twice, and at least one of the three layers being formed of a Langmuir-Blodgett monomolecular film or a Langmuir-Blodgett monomolecular layer built-up film.
An electroluminescent device which comprises a luminescent layer and a pair of electrodes, said luminescent layer comprising a first layer comprising a relatively electron-acceptable organic compound and a compound capable of being an electron-acceptor to said electron-acceptable organic compound, a second layer comprising a relatively electron-donative organic compound and a compound capable of being an electron-donor to said electron-donative organic compound, and a third layer having electrical insulating property, said three layers being repeatedly accumulated at least twice, and at least one of the three layers being formed of a Langmuir-Blodgett monomolecular film or a Langmuir-Blodgett monomolecular layer built-up film.
An electroluminescent device which comprises a luminescent layer and a pair of electrodes, said luminescent layer comprising a first layer comprising a relatively electron-acceptable organic compound and a compound capable of being an electron-acceptor to said electron-acceptable organic compound, a second layer comprising a relatively electron-donative organic compound and a compound capable of being an electron-donor to said electron-donative organic compound, and a third layer having electrical insulating property, said three layers being successively overlaid in the direction of from one electrode to the other electrode on another third layer, said three layers being accumulated at least twice, and at least one of the three layers being formed of a Langmuir-Blodgett monomolecular film or a Langmuir-Blodgett monomolecular layer built-up film.
Dependencies are inferred from the claim text.