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US 8,999,524 B2Granted
Organic light-emitting device
AssigneeSamsung Display Co., Ltd.
InventorsDong-Heon Kim, Tae-Shick Kim, Kwan-Hee Lee, Min-Seung Chun, Jung-Ha Son, Jae-Hyun Kwak, Mi-Kyung Kim, Choon-Woo Lim
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Abstract
An organic light-emitting device includes a first electrode, a mixed organic layer, an emission layer, an electron transport layer, and a second electrode. The mixed organic layer contains a fluorene derivative and a pyrazine derivative, and the electron transport layer contains a lithium quinolate and a pyridine derivative.
Claims19
An organic light-emitting device, comprising:
- a first electrode;
- a second electrode;
- an emission layer between the first electrode and the second electrode;
- a mixed organic layer between the emission layer and the first electrode, the mixed organic layer comprising:
- a fluorene derivative selected from Compound 5, Compound 6 and one of Formulas 2-9;
- and a pyrazine derivative represented by Formula 16:
- R, R1, R2, R3 and R4 in Formulas 1-9 being each independently one of a hydrogen atom, a substituted or unsubstituted C1-30 alkyl group, a substituted or unsubstituted C1-30 alkenyl group, a substituted or unsubstituted C1-30 alkoxy group, a substituted or unsubstituted C6-30 aryl group, a substituted or unsubstituted C6-30 aryloxy group, a substituted or unsubstituted C2-30 heteroaryl group, a substituted or unsubstituted C5-30 condensed polycyclic group, a hydroxyl group, a cyano group and a substituted or unsubstituted amino group,
- each R in Formula 16 being independently a hydrogen atom, a C1-C10 alkyl group, an alkyloxy group, dialkyl amine, halogen, or cyano;
- and
- an electron transport layer between the emission layer and the second electrode, the electron transport layer comprising a lithium quinolate and a pyridine derivative.
7 more elements
An organic light-emitting device, comprising:
- a first electrode;
- a second electrode;
- an emission layer between the first electrode and the second electrode;
- a mixed organic layer between the emission layer and the second electrode, the mixed organic layer comprising a fluorene derivative and a pyrazine derivative, the fluorene derivative selected from compounds represented by Formulas 2 to 9 and the pyrazine derivative represented by Formula 16:
- R, R1, R2, R3 and R4 in Formulae 2 through 9 being each independently selected from a hydrogen atom, a substituted or unsubstituted C1-30 alkyl group, a substituted or unsubstituted C1-30 alkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroaryl, or a substituted or unsubstituted C5-C30 condensed polycyclic group, a hydroxyl group, a cyano group, and a substituted or unsubstituted amino group;
- and
- each R in Formula 16 being independently a hydrogen atom, a C1-C10 alkyl group, an alkyloxy group, dialkyl amine, halogen, or cyano;
- and
- an electron transport layer between the emission layer and the second electrode, the electron transport layer comprising a lithium quinolate and a pyridine derivative represented by Formula 32:
- L being a direct linkage or a bivalent linking group, and being selected from the group consisting of methylene, vinylene, phenylene, anthrylene, thienylene, fluorenylene, spirobifluorenylene, indenofluorenylene, pyridylene, carbazolylene, indenocarbazolylene, benzothiazolylene, oxadiazolylene, pyrylene, furylene, and the above-described groups substituted with one or more substituents selected from the group consisting of alkyl, alkoxy, alkenyl, alkynyl, alkylthio, alkylamino, arylamino, heteroarylamino, aryloxy, heteroaryloxy, arylthio, heteroarylthio, halogen, and cyano,
- R31 to R38 are, each independently, a group selected from group consisting of the following structures:
- and
- n is an integer of 2 to 6.
10 more elements
An organic light-emitting device, comprising:
- a first electrode;
- a second electrode;
- an emission layer between the first electrode and the second electrode;
- a hole-related layer comprising a hole injection layer between the first electrode and the emission layer, a hole transport layer between the hole injection layer and the emission layer, and a mixed organic layer positioned between the first electrode and the hole injection layer, between the hole transport layer and the emission layer, or inside the hole transport layer, the mixed organic layer comprising a fluorene derivative and a pyrazine derivative, the fluorene derivative selected from compounds represented by Formulas 2 to 9 and the pyrazine derivative represented by Formula 16:
- R, R1, R2, R3 and R4 in Formulae 2 through 9 being each independently selected from a hydrogen atom, a substituted or unsubstituted C1-30 alkyl group, a substituted or unsubstituted C1-30 alkenyl group, a substituted or unsubstituted C1-C30 alkoxy group, a substituted or unsubstituted C6-C30 aryl group, a substituted or unsubstituted C6-C30 aryloxy group, a substituted or unsubstituted C2-C30 heteroaryl, or a substituted or unsubstituted C5-C30 condensed polycyclic group, a hydroxyl group, a cyano group, and a substituted or unsubstituted amino group;
- and
- each R in Formula 16 being independently a hydrogen atom, a C1-C10 alkyl group, an alkyloxy group, dialkyl amine, halogen, or cyano;
- and
- an electron transport layer between the emission layer and the second electrode, the electron transport layer comprising a lithium quinolate and a pyridine derivative represented by Formula 32:
- L being one of a direct linkage and a bivalent linking group, and being selected from the group consisting of methylene, vinylene, phenylene, anthrylene, thienylene, fluorenylene, spirobifluorenylene, indenofluorenylene, pyridylene, carbazolylene, indenocarbazolylene, benzothiazolylene, oxadiazolylene, pyrylene, furylene, and the above-described groups substituted with one or more substituents selected from the group consisting of alkyl, alkoxy, alkenyl, alkynyl, alkylthio, alkylamino, arylamino, heteroarylamino, aryloxy, heteroaryloxy, arylthio, heteroarylthio, halogen, and cyano,
- R31 to R38 are, each independently, a group selected from group consisting of the following structures:
- and
- n is an integer of 2 to 6.
10 more elements
An organic light-emitting device, comprising:
- a first electrode;
- a second electrode;
- an emission layer between the first electrode and the second electrode;
- a mixed organic layer between the emission layer and the first electrode, the mixed organic layer comprising Compound 6 and a compound represented by Formula 17;
- and
- an electron transport layer between the emission layer and the second electrode, the electron transport layer comprising a lithium quinolate and Compound 21:
3 more elements
Dependencies are inferred from the claim text.