中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

74 records (took 0.031 seconds)

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    31.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 审中-公开

    公开(公告)号：US20200185613A1

    公开(公告)日：2020-06-11

    申请号：US16789860

    申请日：2020-02-13

    Applicant: Universal Display Corporation

    Inventor： Lichang ZENG ,  Zhiqiang JI ,  Edward BARRON

    IPC: H01L51/00 ,  H01L51/50

    Abstract: A compound capable of functioning as a phosphorescent emitter in an organic light emitting device at room temperature is provided. The compound includes at least one substituent R, where each of the at least one substituent R has the formula of: —G1-G2, where the dashed line denotes the bond through which R is attached in the first compound; G1 is a non-aromatic cyclic or polycyclic group; G2 is selected from aryl and heteroaryl; and G1 and G2 are independently, optionally further substituted with a substituent selected from the group consisting of hydrogen, deuterium, halide, alkyl, cycloalkyl, heteroalkyl, arylalkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acids, ester, nitrile, isonitrile, sulfanyl, sulfinyl, sulfonyl, phosphino, and combinations thereof. Organic light emitting devices, consumer products, and formulations containing the compound are also provided.

    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES
    32.
    发明申请
    ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES 审中-公开

    公开(公告)号：US20190280212A1

    公开(公告)日：2019-09-12

    申请号：US16420555

    申请日：2019-05-23

    Applicant: Universal Display Corporation

    Inventor： Lichang ZENG ,  Chuanjun XIA ,  Scott JOSEPH ,  Walter YEAGER ,  Mingjuan SU ,  Ting-Chih WANG

    IPC: H01L51/00 ,  H01L51/50 ,  C09K11/06

    Abstract: A premixed co-evaporation source that is a mixture of a first compound and a second compound is disclosed. The co-evaporation source is for vacuum deposition process. The first compound has a different chemical structure than the second compound. The first compound and the second compound are both organic compounds. At least one of the first compound and the second compound contains at least one less abundant stable isotope atom. At least one of the first compound and the second compound is a fluorescent or delayed fluorescent emitter. The first compound has an evaporation temperature T1 of 100 to 400° C.; the second compound has an evaporation temperature T2 of 100 to 400° C.; the absolute value of T1−T2 is less than 20° C. The first compound has a concentration C1 in said mixture and a concentration C2 in a film formed by evaporating the mixture in a high vacuum deposition tool with a chamber base pressure between 1×10−6 Torr to 1×10−9 Torr, at a 2 Å/sec deposition rate on a surface positioned at a predefined distance away from the mixture being evaporated. The absolute value of (C1−C2)/C1 is less than 5%.

Patent Agency Ranking