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US 11,608,321 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorPeter Wolohan
Life of this patent
Estimating the term…
Abstract
The present invention includes novel compounds containing deuterated or partially deuterated xanthene and thioxanthene structures. These compounds may be useful as host materials with high triplet energies for phosphorescent electroluminescent devices.
Claims18
An organic light emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound of
- wherein
- D is selected from the group consisting of CRd1Rd2 and SiRd1Rd2;
- wherein Rd1 and Rd2 are independently selected from the group consisting of deuterium, partially or fully deuterated alkyl, partially or fully deuterated cycloalkyl, partially or fully deuterated aryl, partially or fully deuterated heteroaryl, and partially or fully deuterated silyl;
- E is selected from a direct bond, O, S, or Se;
- A1, A2, A3, A4, A5, A6, A7, and A8 are independently selected from CRA or N;
- wherein no more than one of A1, A2, A3, and A4, or no more than one of A5, A6, A7, and A8, are N;
- wherein RA for each CRA is independently hydrogen, or independently comprises halide, alkyl, deuteroalkyl, cycloalkyl, deuterocycloalkyl, heteroalkyl, deuteroheteroalkyl, deuteroarylalkyl, alkoxy, aryloxy, silyl, deuterosilyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, pyridine, pyrimidine, pyrazine, tetraphenylene, azatetraphenylene, tetraphenylenecarbonitrile, acyl, ester, nitrile, isonitrile, benzonitrile, sulfanyl, sulfinyl, sulfonyl, or combinations thereof;
- wherein RA does not comprise boron or an amino group.
9 more elements
An organic light emitting device (OLED) comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising a compound of
- wherein
- D is selected from the group consisting of CRd1Rd2 and SiRd1Rd2;
- wherein Rd1 and Rd2 are independently selected from the group consisting of deuterium, partially or fully deuterated alkyl, partially or fully deuterated cycloalkyl, partially or fully deuterated aryl, partially or fully deuterated heteroaryl, and partially or fully deuterated silyl;
- E is selected from O, S, or Se;
- A1, A2, A3, A4, A5, A6, A7, and A8 are independently selected from CRA or N;
- wherein no more than one of A1, A2, A3, and A4, or no more than one of A5, A6, A7, and A8, are N;
- wherein RA for each CRA is independently hydrogen, or independently comprises halide, alkyl, deuteroalkyl, cycloalkyl, deuterocycloalkyl, heteroalkyl, deuteroheteroalkyl, deuteroarylalkyl, alkoxy, aryloxy, silyl, deuterosilyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, pyridine, pyrimidine, pyrazine, tetraphenylene, azatetraphenylene, tetraphenylenecarbonitrile, acyl, ester, nitrile, isonitrile, benzonitrile, sulfanyl, sulfinyl, sulfonyl, or combinations thereof;
- wherein RA does not comprise boron or an amino;
- wherein the organic layer is an emissive layer and the compound of Formula I is a host.
10 more elements
Dependencies are inferred from the claim text.