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US 2023/0057590 A1Published application
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsAlexey Borisovich Dyatkin, Bin Ma
Life of this patent
Estimating the term…
Abstract
The present invention includes a novel series of host materials for OLEDs based on substituted fused 1,2,4-triazines. The compounds of the invention may improve the device EQE and lifetime.
Claims19
A compound of Formula I:
- wherein ring A, ring B, and ring C are independently a 5-membered aromatic ring or a 6-membered aromatic ring;
- R1, R2, and R3 represent mono to the maximum allowable substitution, or no substitution;
- Y is selected from O, S, Se, NRN, or a direct bond;
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- or any two adjacent R1, R2, and R3 can join together to form a ring;
- or if Y is a direct bond, then a proximate R2 and R3 can join to form a ring;
- and
- RN is selected from the group consisting of hydrogen, deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkenyl, aryl, heteroaryl, and combinations thereof,
- provided that when Y is a direct bond, and R2 and R3 represent no substitution, then at least one of B and C is a heteroaromatic ring.
6 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 Formula I:
- wherein ring A, ring B, and ring C are independently a 5-membered aromatic ring or a 6-membered aromatic ring;
- R1, R2, and R3 represent mono to the maximum allowable substitution, or no substitution;
- Y is selected from O, S, Se, NRN, or a direct bond;
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- or any two adjacent R1, R2, and R3 can join together to form a ring;
- or if Y is a direct bond, then a proximate R2 and R3 can join to form a ring;
- and
- RN is selected from the group consisting of hydrogen, deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkenyl, aryl, heteroaryl, and combinations thereof,
- provided that when Y is a direct bond, and R2 and R3 represent no substitution, then at least one of B and C is a heteroaromatic ring.
10 more elements
A consumer product comprising 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 Formula I:
- wherein ring A, ring B, and ring C are independently a 5-membered aromatic ring or a 6-membered aromatic ring;
- R1, R2, and R3 represent mono to the maximum allowable substitution, or no substitution;
- Y is selected from O, S, Se, NRN, or a direct bond;
- R1, R2, and R3 are each independently selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof;
- or any two adjacent R1, R2, and R3 can join together to form a ring;
- or if Y is a direct bond, then a proximate R2 and R3 can join to form a ring;
- and
- RN is selected from the group consisting of hydrogen, deuterium, fluorine, alkyl, cycloalkyl, heteroalkyl, alkenyl, aryl, heteroaryl, and combinations thereof,
- provided that when Y is a direct bond, and R2 and R3 represent no substitution, then at least one of B and C is a heteroaromatic ring.
10 more elements
Dependencies are inferred from the claim text.