Invention Grant
US08093399B2 Benzoxazole derivative, and light-emitting element, light-emitting device, and electronic device using benzoxazole derivative
有权
苯并恶唑衍生物,发光元件,发光元件和使用苯并恶唑衍生物的电子器件
- Patent Title: Benzoxazole derivative, and light-emitting element, light-emitting device, and electronic device using benzoxazole derivative
- Patent Title (中): 苯并恶唑衍生物,发光元件,发光元件和使用苯并恶唑衍生物的电子器件
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Application No.: US12553290Application Date: 2009-09-03
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Publication No.: US08093399B2Publication Date: 2012-01-10
- Inventor: Hiroko Nomura , Sachiko Kawakami , Nobuharu Ohsawa , Satoshi Seo
- Applicant: Hiroko Nomura , Sachiko Kawakami , Nobuharu Ohsawa , Satoshi Seo
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2008-228252 20080905; JP2009-049170 20090303
- Main IPC: C07D413/10
- IPC: C07D413/10 ; B32B9/00 ; H01J1/62

Abstract:
Disclosed is a novel benzoxazole derivative which has high excitation energy, particularly high triplet excitation energy, and is a bipolar substance. A benzoxazole derivative represented by the following General Formula (G1) is provided. In the formula, R1 and R2 independently represent a hydrogen atom, an alkyl group with 1 to 4 carbon atoms, or a substituted or unsubstituted aryl group with 6 to 13 carbon atoms, substituents of the substituted aryl group may be bonded to form a ring which may form a spiro ring structure, R11 to R14 independently represent a hydrogen atom, a halogen, an alkyl group with 1 to 4 carbon atoms, or an unsubstituted aryl group with 6 to 10 carbon atoms, a bond formed between any two of α, β, and γ forms a carbazole skeleton, and n is 0 to 3.
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