ORGANIC ELECTROPHOSPHORESCENCE DEVICE
    5.
    发明公开

    公开(公告)号:EP3370273A1

    公开(公告)日:2018-09-05

    申请号:EP16874714.5

    申请日:2016-11-25

    IPC分类号: H01L51/50

    摘要: The present invention discloses a phosphorescent organic electroluminescence device including a hole transport layer, a luminescent layer and an electron transport layer, which are successively laminated. The luminescent layer has a double-layer structure comprising a hole transport material layer and an electron transport material layer. The hole transport material layer is arranged between the hole transport layer and the electron transport material layer. The electron transport material layer is arranged between the hole transport material layer and the electron transport layer. An exciplex is formed on the interface of contact between the hole transport material layer and the electron transport material layer. The hole transport material layer includes a host material, the host material being a material having hole transport capability; and the electron transport material layer includes a host material and a phosphorescent dye doped in the host material, the host material being a material having electron transport capability.

    DEPOSITABLE ION ORGANIC FUNCTION MATERIAL AND USE THEREOF IN ORGANIC ELECTROLUMINESCENT DEVICE
    6.
    发明公开
    DEPOSITABLE ION ORGANIC FUNCTION MATERIAL AND USE THEREOF IN ORGANIC ELECTROLUMINESCENT DEVICE 审中-公开
    可沉积的离子有机功能材料及其在有机电致发光器件中的用途

    公开(公告)号:EP3318617A1

    公开(公告)日:2018-05-09

    申请号:EP16817142.9

    申请日:2016-06-15

    IPC分类号: C09K11/06 C07F15/00 H01L51/54

    摘要: The present invention relates to a depositable ionic organic functional material having a structure shown in the following formula (1):

    wherein, R is a hydrogen atom, a halogen atom or -CF 3 ; R' is a hydrogen atom or a halogen atom; the N^N ligand is selected from Pzpy shown in the following formula (31) and its derivatives, Pyim shown in the following formula (32), Ptop shown in the following formula (33), Pop shown in the following formula (34), and Bpy shown in the following formula (35):



    When the functional material is used as a luminescent dye, the synthesis conditions are mild and easy to carry out, the yield is high, and the product is simple to purify. The functional material can be used in high-efficiency blue to red OLEDs.

    摘要翻译: 本发明涉及具有下式(1)所示结构的可沉积的离子有机功能材料:其中,R是氢原子,卤素原子或-CF 3; R'是氢原子或卤素原子; (31)所示的Pzpy及其衍生物,下述式(32)所示的Pyim,下述式(33)所示的Ptop,下述式(34)所示的Pop, 和下式(35)所示的Bpy:当功能材料用作发光染料时,合成条件温和且易于实施,产率高,且产物易于纯化。 功能材料可用于高效蓝到红色OLED。

    ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND DISPLAY APPARATUS

    公开(公告)号:EP3392911A1

    公开(公告)日:2018-10-24

    申请号:EP16874744.2

    申请日:2016-12-02

    IPC分类号: H01L27/32

    摘要: An organic light-emitting display device (100). A functional structure layer (130) of the organic light-emitting display device (100) comprises a hole injection layer (131), a first hole transport layer (1321), a second hole transport layer (1322), an organic light-emitting layer (133), an electron transport layer (134) and an electron injection layer (135) which are sequentially laminated on a first electrode (110). The highest occupied orbital energy level of the material of the first hole transport layer (1321) is less than the highest occupied orbital energy level of the second hole transport layer (1322). A triplet state energy level of the material of the second hole transport layer (1322) is greater than 2.5 eV. The organic light-emitting layer (133) comprises a main light-emitting material, and the main light-emitting material comprises a thermal activation delay fluorescent material. The organic light-emitting display device (100) adopts two hole transport layers, wherein the second hole transport layer (1322) acts as both an electron blocking layer and an optical compensation layer, and matches the thermal activation delay fluorescent material in the organic light-emitting layer (133), thereby improving the current efficiency and service life of the organic light-emitting display device (100).

    ELECTRODE AND ORGANIC ELECTROLUMINESCENT COMPONENT APPLYING SAME

    公开(公告)号:EP3471165A1

    公开(公告)日:2019-04-17

    申请号:EP18736549.9

    申请日:2018-01-05

    IPC分类号: H01L51/52

    摘要: The present invention pertains to the field of electroluminescence, and particularly relates to an electrode and an organic electroluminescent device using the same. The electrode comprises a first layer (1) and a second layer (2) arranged in a stacked manner. The first layer (1) is an alkali earth metal alloy layer, and the second layer (2) has a work function of 2.0eV to 3.5eV. The composite layered electrode with a gradient of work function has very good stability, which can effectively prolong the service life of the device. The work function of the second layer (2) is only 2.0eV to 3.5eV, which can effectively reduce the barrier potential of the organics-metal interface, and in the meantime, the composite electrode structure with a gradient of work function can lower the electron injection barrier potential in a step-by-step manner, thereby providing orderly guidance for electron injection, so that the light-emitting efficiency of the device is improved.