Organic electroluminescent element, compound, and light emitting device, display device and lighting system, using said element
AssigneeUDC Ireland Limited
InventorsToshihiro Ise, Saki Takada
Life of this patent
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Abstract
An organic electroluminescent element including a substrate, a pair of electrodes including an anode and a cathode, disposed on the substrate, and at least one organic layer including a light emitting layer, disposed between the electrodes, in which at least one kind of compound represented by the following general formula is contained in any layer of the at least one organic layer, is an organic electroluminescent element, in which the generation of dark spots during driving is inhibited: wherein Q, Ar, L, and n are as defined in the application.
Claims18
An organic electroluminescent element comprising:
- a substrate;
- a pair of electrodes including an anode and a cathode, disposed on the substrate;
- and
- at least one organic layer including a light emitting layer, disposed between the electrodes,
- wherein at least one kind of compound represented by the following general formula (II) is contained in any layer of the at least one organic layer;
- wherein:
- R1 to R10 represent a hydrogen atom or a substituent, three out of the combinations of R1 and R2, R2 and R3, R3 and R4, R4 and R5, R5 and R6, R6 and R7, R7 and R8, R8 and R9, R9 and R10 and R10 and R1 are substituted with each independent groups represented by the following general formula B, provided that at least one of the combinations of R3 and R4, R5 and R6, R8 and R9, and R10 and R1 are substituted with the general formula B:
- wherein L2 represents CR12R13, NR14, SiR15R16, an O atom, or an S atom, wherein R12, R13, R14, R15 and R16 each independently represents a fluorine atom, an alkyl group, an aryl group, or a heteroaryl group;
- * and # represent sites for substitution with any one of the combinations of R1 and R2, R2 and R3, R3 and R4, R4 and R5, R5 and R6, R6 and R7, R7 and R8, R8 and R9, R9 and R10 or R10 and R1 in the general formula (II), one of two groups in the combinations may be substituted at * or the other may be substituted at #;
- R21's each independently represents a substituent;
- o represents an integer of 0 to 4;
- where in the case where o is 2 to 4, the respective R21's may be the same as or different from each other, and R21's may be bonded to each other to form a ring.
A compound represented by the following general formula (II):
- wherein:
- R1 to R10 represent a hydrogen atom or a substituent, three out of the combinations of R1 and R2, R2 and R3, R3 and R4, R4 and R5, R5 and R6, R6 and R7, R7 and R8, R8 and R9, R9 and R10 and R10 and R1 are substituted with each independent groups represented by the following general formula B, provided that at least one of the combinations of R3 and R4, R5 and R6, R8 and R9, and R10 and R1 are substituted with the general formula B:
- wherein L2 represents CR12R13, NR14, SiR15R16, an O atom, or an S atom, wherein R12, R13, R14, R15 and R16 each independently represents a fluorine atom, an alkyl group, an aryl group, or a heteroaryl group;
- * and # represent sites for substitution with any one of the combinations of R1 and R2, R2 and R3, R3 and R4, R4 and R5, R5 and R6, R6 and R7, R7 and R8, R8 and R9, R9 and R10 or R10 and R1 in the general formula (II), one of two groups in the combinations may be substituted at * or the other may be substituted at #;
- R21's each independently represents a substituent;
- o represents an integer of 0 to 4;
- where in the case where o is 2 to 4, the respective R21's may be the same as or different from each other, and R21's may be bonded to each other to form a ring.
Dependencies are inferred from the claim text.