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US 2021/0202846 A1Published application
Organic electric element, display panel comprising the same and display device comprising the same
AssigneesLG Display Co., Ltd., Solus Advanced Materials Co., Ltd.
InventorsSeonkeun Yoo, HeeJun Park, Soyoung Jang, JiHo Baek, Jeongdae Seo, SunKap Kwon, Minchul Jun, HyunChul Choi, Young Mo Kim, Jae Yi Sim
Life of this patent
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Abstract
Provided are an organic electric element, a display panel and a display device having high efficiency or long life by including layers having excellent hole transport ability and carrier resistance.
Claims11
An organic electric element comprising:
- a first electrode;
- a second electrode;
- and
- an organic layer positioned between the first electrode and the second electrode,
- wherein the organic layer comprises an emitting layer, a first layer and a second layer,
- the first layer comprises a compound represented by the following chemical formula 1, and
- the second layer comprises a compound represented by the following chemical formula 2:
- wherein in the chemical formula 1:
- X is O, S, CR′ R″ or N1,
- R′ and R″ are same or different, and are each independently selected from the group consisting of a hydrogen;
- a deuterium;
- a C6˜C60 aryl group;
- a fluorenyl group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring,
- R′ and R″ can be bonded to each other to form a ring,
- R1 to R4 are same or different, and are each independently selected from the group consisting of a hydrogen;
- a deuterium;
- a tritium;
- a halogen;
- a cyano group;
- a nitro group;
- a C6-C60 aryl group;
- a fluorenyl group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
- a C1-C50 alkyl group;
- a C2-C20 alkenyl group;
- a C2-C20 alkynyl group;
- a C1-C30 alkoxy group;
- a C6-C30 aryloxy group;
- and -L3-N(Ar2)(Ar3),
- R1 and R2 can be bonded to each other to form a ring, R2 and R3 can be bonded to each other to form a ring, and R3 and R4 can be bonded to each other to form a ring, L2 can be independently one selected from the group consisting of a single bond;
- a C6˜C60 arylene group;
- a fluorenylene group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- and a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring,
- Ar1 and Ar2 are same or different, and are each independently selected from the group consisting of a C6-C60 aryl group;
- a fluorenyl group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- and a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring,
- wherein in the chemical formula 2:
- R5 and R6 are same or different, and are each independently selected from the group consisting of a hydrogen;
- a deuterium;
- a tritium;
- a halogen;
- a cyano group;
- a nitro group;
- a C6˜C60 aryl group;
- a fluorenyl group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring;
- and -L3-N(Ar2)(Ar3),
- L1 and L3 are same or different, and are each independently one selected from the group consisting of a single bond;
- a C6˜C60 arylene group;
- a fluorenylene group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- and a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring,
- B is independently selected from the group consisting of a C6-C60 aryl group;
- a fluorenyl group;
- a C2-C60 hetero ring group containing at least one hetero atom from O, N, S, Si and P;
- and a fused ring group of a C3-C60 aliphatic ring and a C6-C60 aromatic ring,
- Ar1 and Ar2 are the same as these in the chemical formula 1,
- wherein in the chemical formulas 1 and 2, the aryl group, the fluorenyl group, the hetero ring group, the fused ring group, the alkyl group, the alkenyl group, the alkynyl group, the alkoxy group, the aryloxy group, the arylene group and the fluorenylene can each be further substituted with at least one substituent selected from the group consisting of a deuterium;
- a nitro group;
- a nitrile group;
- a cyano group;
- a halogen;
- an amino group;
- a C1-C20 alkylthio group;
- a C1-C20 alkoxyl group;
- a C1-C20 alkyl group;
- a C2-C20 alkenyl group;
- a C2-C20 alkynyl group;
- a C6-C20 aryl group;
- a C6-C20 aryl group substituted with the deuterium;
- a fluorenyl group;
- a C2-C20 hetero ring group;
- a C3-C20 cycloalkyl group;
- a C7˜C20 arylalkyl group and a C8˜C20 arylalkenyl group, and
- the additionally substituted substituents can be bond to each other to form a ring, and the additionally substituted substituents can each be further substituted with at least one substituent selected from the group consisting of a deuterium;
- a nitro group;
- a nitrile group;
- a cyano group;
- a halogen;
- an amino group;
- a C1-C20 alkylthio group;
- a C1-C20 alkoxyl group;
- a C1-C20 alkyl group;
- a C2-C20 alkenyl group;
- a C2-C20 alkynyl group;
- a C6-C20 aryl group;
- a C6-C20 aryl group substituted with the deuterium;
- a fluorenyl group;
- a C2-C20 hetero ring group;
- a C3-C20 cycloalkyl group;
- a C7˜C20 arylalkyl group and a C8˜C20 arylalkenyl group;
- and these substituents can be bonded to each other to form a ring.
95 more elements
Dependencies are inferred from the claim text.