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US 7,351,481 B2Granted
Imidazole ring-containing compound and organic electroluminescence display device
AssigneeSamsung SDI Co., Ltd.
InventorsSeok-Jong Lee, Young-Kook Kim, Seok-Hwan Hwang, Seung-Gak Yang, Hee-Yeon Kim, Young-Rag Do, Joo-Han Song
Life of this patent
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Abstract
The present invention is related to an imidazole ring-containing compound and an organic electroluminescence (EL) display device using the same. In particular, the imidazole ring-containing compound may be used alone or in combination with a dopant as a material for organic films such as an electroluminescent layer. The organic EL display device using an organic film made of the imidazole ring-containing compound has improved characteristics such as luminance, efficiency, driving voltage, and color purity.
Claims7
An imidazole ring-containing compound, comprising:
- where A is selected from the group consisting of
- B is selected from the group consisting of
- where X is;
- X′ is selected from the group consisting of CR and N;
- where each of R1 through R5, R11, and R12 is independently selected from the group consisting of a hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group;
- a substituted or unsubstituted C4-C30 cycloalkyl group, a substituted or unsubstituted C2-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroacryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C6-C30 condensed polycyclic group, an amino group, a substituted or unsubstituted C1-C30 alkylamino group, a substituted or unsubstituted C6-C30 arylamino group, a cyano group, a nitro group, a hydroxy group, a halogen atom, a substituted or unsubstituted C6-C30 arylsulfonyl group, and a substituted or unsubstituted C1-C30 alkylsulfonyl group, where adjacent groups among R1 through R5, R11, and R12 can combine together to form a substituted or unsubstituted C2-C30 saturated or unsaturated ring;
- where each of R′ and R″, which are monosubstituted or multi-substituted groups, is selected from the group consisting of a hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group;
- a substituted or unsubstituted C4-C30 cycloalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroacryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C6-C30 condensed polycyclic group, an amino group, a substituted or unsubstituted C1-C30 alkylamino group, a substituted or unsubstituted C6-C30 arylamino group, a cyano group, a nitro group, a hydroxy group, a halogen atom, a substituted or unsubstituted C6-C30 arylsulfonyl group, and a substituted or unsubstituted C1-C30 alkylsulfonyl group, and where R′ and R″ can combine together to form a saturated or unsaturated ring.
5 more elements
An organic electroluminesence display device comprising an organic film between a pair of electrodes, wherein the organic film is composed of an imidazole ring-containing compound, comprising:
- where A is selected from the group consisting of
- B is selected from the group consisting of
- where X is S;
- X′ is selected from the group consisting of CR and N;
- each of R1 through R11, and R12 is independently selected from the group consisting of a hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group;
- a substituted or unsubstituted C4-C30 cycloalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroacryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C6-C30 condensed polycyclic group, an amino group, a substituted or unsubstituted C1-C30 alkylamino group, a substituted or unsubstituted C6-C30 arylamino group, a cyano group, a nitro group, a hydroxy group, a halogen atom, a substituted or unsubstituted C6-C30 arylsulfonyl group, and a substituted or unsubstituted C1-C30 alkylsulfonyl group, wherein adjacent groups among R1 through R5, R11, and R12 can combine together to form a substituted or unsubstituted C2-C30 saturated or unsaturated ring;
- where each of R′ and R″, which are monosubstituted or multi-substituted groups, is selected from the group consisting of hydrogen, a substituted or unsubstituted C1-C30 alkyl group, a substituted or unsubstituted C1-C30 alkoxy group;
- a substituted or unsubstituted C4-C30 cycloalkyl group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroacryl group, a substituted or unsubstituted C2-C30 heteroaryloxy group, a substituted or unsubstituted C6-C30 condensed polycyclic group, an amino group, a substituted or unsubstituted C1-C30 alkylamino group, a substituted or unsubstituted C6-C30 arylamino group, a cyano group, a nitro group, a hydroxy group, a halogen atom, a substituted or unsubstituted C6-C30 arylsulfonyl group, and a substituted or unsubstituted C1-C30 alkylsulfonyl group, wherein R′ and R″ can combine together to form a saturated or unsaturated ring.
5 more elements
Dependencies are inferred from the claim text.