AROMATIC AMINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT ELEMENTS USING SAME

    公开(公告)号:US20220255005A1

    公开(公告)日:2022-08-11

    申请号:US17719823

    申请日:2022-04-13

    Inventor: Tomoki KATO

    Abstract: An OLED material may reduce the driving voltage of an OLED and/or increase the device lifetime compared to conventional OLED materials, specifically an aromatic amine, N(Ara)(Arb)(Arc), wherein Ara is of formula (II) La being a single bond or arylene, R1 to R4 being alkyl, aryl, etc., R3 and R4 optionally being bonded to form a ring, o being 0 to 3, and p being 0 to 4, wherein Arb is of formula (III) and Arc is aryl or of formula (III) X is NRa, O, or S, and Ra and R5 to R7 being alkyl, aryl, etc., R5's, R6's, or R7's adjacent to each other, or R5 and R6 optionally being bonded to form a ring, n being 2 to 4 when X is NRa, and 0 to 4 when X is O or S, q is 0 to 3, r and s are independently 0 to 4.

    AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT
    8.
    发明申请
    AROMATIC AMINE DERIVATIVE, AND ORGANIC ELECTROLUMINESCENT ELEMENT 有权
    芳香胺衍生物和有机电致发光元件

    公开(公告)号:US20150255729A1

    公开(公告)日:2015-09-10

    申请号:US14718795

    申请日:2015-05-21

    Abstract: Provided are an organic electroluminescence device that not only provides high efficiency but also has a long lifetime, and an aromatic amine derivative that realizes the device. The organic electroluminescence device includes an aromatic amine derivative, including at least one substituent A having dibenzofuran and at least one substituent B selected from groups each having dibenzofuran or carbazole, in a molecule thereof, in which the substituent A and the substituent B include groups different from each other, and the substituent A and the substituent B are bonded to the same nitrogen atom, or different nitrogen atoms, in the molecule. The molecules of the aromatic amine derivative hardly crystallize, which improves a yield in the production of the organic electroluminescence device. In the organic electroluminescence device, including an organic thin film layer formed of one or more layers including at least a light emitting layer, the organic thin film layer being interposed between a cathode and an anode, the aromatic amine derivative is contained in at least one layer, particularly a hole transport layer, in the organic thin film layer.

    Abstract translation: 提供了不仅提供高效率而且寿命长的有机电致发光器件和实现该器件的芳香族胺衍生物。 有机电致发光元件包括至少一个具有二苯并呋喃的取代基A和至少一个选自分子中具有二苯并呋喃或咔唑的取代基B的芳族胺衍生物,其中取代基A和取代基B包括不同的基团 并且分子中的取代基A和取代基B键合到相同的氮原子或不同的氮原子。 芳族胺衍生物的分子几乎不结晶,提高了有机电致发光元件的制造成品率。 在有机电致发光器件中,包括由至少包含发光层的一层或多层形成的有机薄膜层,有机薄膜层插入在阴极和阳极之间,芳族胺衍生物包含在至少一个 层,特别是空穴传输层。

    ORGANIC ELECTROLUMINESCENCE DEVICE
    9.
    发明申请
    ORGANIC ELECTROLUMINESCENCE DEVICE 审中-公开
    有机电致发光器件

    公开(公告)号:US20140167003A1

    公开(公告)日:2014-06-19

    申请号:US14011093

    申请日:2013-08-27

    Abstract: Problem to Be Solved:To provide a highly efficient, long lifetime organic EL device that is capable of driving at low voltage.SolutionAn organic electroluminescence device including an organic layer which includes a hole transporting layer and a light emitting layer between an anode and a cathode in this order from the anode side, in which the organic layer includes an acceptor material and the hole transporting layer includes a compound represented by formula (1): wherein each of L1 and L2 is independently represented by formula (1-2) or (1-3) and each of Ar1 to Ar5 is independently represented by any one of formulae (1-4) to (1-9): wherein: each of R1 to R17 independently represents a substituted or unsubstituted alkyl group, a halogen atom, a substituted or unsubstituted fluoroalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted fluoroalkoxy group, or a cyano group; each of n1 to n5, n7, n9, n15, and n17 independently represents an integer of 0 to 4; each of n6, n8, n10, n11, and n13 independently represents an integer of 0 to 5; each of n12, n14 and n16 independently represents an integer of 0 to 3; R6 to R17 may be bonded to each other to form a ring; and each of wavy lines indicates a bonding site.

    Abstract translation: 要解决的问题:提供能够在低电压下驱动的高效,长寿命的有机EL器件。 溶液有机电致发光器件包括从阳极侧依次包括空穴传输层和阳极和阴极之间的发光层的有机层,其中有机层包含受主材料,空穴传输层包含 由式(1)表示的化合物:其中L1和L2各自独立地由式(1-2)或(1-3)表示,Ar1至Ar5各自独立地由式(1-4)至 (1-9)表示:其中:R 1〜R 17各自独立地表示取代或未取代的烷基,卤素原子,取代或未取代的氟代烷基,取代或未取代的烷氧基,取代或未取代的氟代烷氧基或氰基 组; n1〜n5,n7,n9,n15,n17各自独立地表示0〜4的整数, n6,n8,n10,n11和n13各自独立地表示0〜5的整数, n12,n14和n16各自独立地表示0〜3的整数, R6至R17可以彼此键合形成环; 波浪线表示接合部位。

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