Blue electroluminescence compound for an organic electroluminescence device and the organic electroluminescence device using the same
AssigneeSamsung SDI Co., Ltd.
InventorsSung Han Kim, Han Sung Yu, Soon Ki Kwon, Yun Hi Kim, Dong Cheol Shin, Hyun Wook Lee, Hyun Cheol Jeong
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Abstract
A blue electroluminescence compound for an electroluminescence display device comprising a spirobifluorene or triarylsilylphenyl group and a display device using such a blue electroluminescence compound, thereby improving a light emitting efficiency and brightness of the electroluminescence display device.
Claims24
A blue electroluminescence compound for an electroluminescence display device comprising a spirobifluorene represented in a following formula 1:
- 10
- wherein the Ar is a functional group selected from the group consisting of an aryl group having 6 to 20 carbons, an aryl group of 6 to 20 carbons having a 1 to 20 alkyl functional group, and an aryl group of 6 to 20 carbons having a 1 to 20 alkoxy group, and the R1 and R2 each is a functional group selected from the group consisting of an alkyl group having 1 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons, and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons.
A blue electroluminescence compound for an electroluminescence display device comprising a triaylsilylphenyl represented in a following formula 4:
- 12
- wherein the Ar is a functional group selected from the group consisting of an aryl group having 6 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons, and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons, and the R1, R2, and R3 each is a functional group selected from the group consisting of H, an alkyl group of 1 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons, and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons.
An organic electroluminescence display device comprising:
- an organic layer between a pair of electrodes, wherein the organic layer comprises a compound represented in a following formula 1 or 4:
- 14
- wherein an Ar is a functional group selected from the group consisting of an aryl group having 6 to 20 carbons, an aryl group of 6 to 20 carbons having a 1 to 20 alkyl functional group, and an aryl group of 6 to 20 carbons having a 1 to 20 alkoxy group, and the R1 and R2 each is a functional group selected from the group consisting of an alkyl group having 1 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons, and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons;
- and
- 15
- wherein the Ar is a functional group selected from the group consisting of an aryl group having 6 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons, and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons, and the R1, R2, and R3 each is a functional group selected from the group consisting of H, an alkyl group of 1 to 20 carbons, an aryl group of 6 to 20 carbons having an alkyl group of 1 to 20 carbons and an aryl group of 6 to 20 carbons having an alkoxy group of 1 to 20 carbons.
An organic electroluminescence compound comprising:
- an aryl group;
- and
- spirofluorene groups.
An organic electroluminescence compound comprising:
- an aryl group;
- and
- triarylsilphenyl groups.
An organic electroluminescence display device comprising:
- a pair of electrodes;
- and
- an organic layer formed between the pair of electrodes, the organic layer comprising a material formed of:
- an aryl group, and
- spirofluorene groups.
An organic electroluminescence display device comprising:
- a pair of electrodes;
- and
- an organic layer formed between the pair of electrodes, the organic layer comprising a material formed of:
- an aryl group;
- and
- triarylsilphenyl groups.
Dependencies are inferred from the claim text.