Patent ID: 8927115
Filing Date: 2015-01-06
Classification: C08G,H01L,H05B

Abstract:
1. An organic electroluminescent device having electrodes composed of an anode and a cathode, a first organic layer arranged in contact with or adjacent to the anode between the electrodes and containing a hole transporting polymer compound and a second organic layer arranged in contact with the first organic layer between the first organic layer and the cathode and containing an electron transporting polymer compound, wherein the hole transporting polymer compound satisfies the following formula (1): wherein, Ip1 represents the absolute value (eV) of the ionization potential of the hole transporting polymer compound, and Wa represents the absolute value (eV) of the work function of the anode, the electron transporting polymer compound satisfies the following formula (2) and the following formula (3): wherein, Wc represents the absolute value (eV) of the work function of the cathode, Ea2 represents the absolute value (eV) of the electron affinity of the electron transporting polymer compound, Ip2 represents the absolute value (eV) of the ionization potential of the electron transporting polymer compound, and Wa has the same meaning as described above, at least one of the first organic layer and the second organic layer contains a light emitting material satisfying the following formula (4) and the following formula (5): wherein, Ip3 represents the absolute value (eV) of the ionization potential of the light emitting material, Ea3 represents the absolute value (eV) of the electron affinity of the light emitting material, and Ip1 and Ea2 have the same meanings as described above, and light is emitted from the first organic layer or from the first organic layer and the second organic layer, in a color range in which values of x and y on the CIE chromatic coordinate satisfy the following formula (P) or the following formula (Q): wherein said hole transporting polymer compound comprises a repeating unit of the following formula: and is molecular-crosslinked by heating or by irradiation with light or electron beam.