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    ELECTROLUMINESCENCE ELEMENT
    1.
    发明专利
    ELECTROLUMINESCENCE ELEMENT 失效

    公开(公告)号：JP2000208274A

    公开(公告)日：2000-07-28

    申请号：JP2000016564

    申请日：2000-01-26

    Applicant: LUCENT TECHNOLOGIES INC

    Inventor： DODABALAPUR ANANTH ,  JORDAN REBECCA ,  STRUKELJ MARKO

    IPC: H04N5/70 ,  C09K11/06 ,  H01L33/00 ,  H01L51/50 ,  H05B33/12 ,  H05B33/14 ,  H05B33/22

    Abstract: PROBLEM TO BE SOLVED: To provide effective white light emission by providing a blue light emitting material having a non-high polymer molecular structure including a structure selected from an imidazole structure having a substituent of at least three pendant side chains, a quinoline structure and a pyrazine structure, and setting the crystal size to a specific value. SOLUTION: An imidazole structure is expressed by formula I, and in the formula, R1 and R2 are the same, and are a phenyl group and a methoxyphenyl group, R3 is different from R1 and R2, and is a phenyl group and a naphthyl group. A quinoline structure is expressed by formula II, and in the formula, R1 is F, Cl, Br atoms, R2 is an H atom, a phenyl group, a methoxyphenyl group and a naphthyl group, and R3 is a phenyl group, a methoxyphenyl group and a naphthyl group. A pyrazine structure is expressed by formula III, and in the formula, R1 and R2 are a cyano group, R3 and R4 are a (t)-butyl phenoxyphenyl group and a methoxyphenyl group. The crystal size of a blue light emitting material layer is set not more than about 1000 Å.

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