中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

22 records (took 0.022 seconds)

    ORGANIC ELECTROLUMINESCENCE DEVICE
    1.
    发明申请
    ORGANIC ELECTROLUMINESCENCE DEVICE 审中-公开

    公开(公告)号：US20200287141A1

    公开(公告)日：2020-09-10

    申请号：US16650717

    申请日：2018-09-21

    Applicant: HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

    Inventor： Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Kazuyuki SURUGA ,  Se-Jin LEE ,  Oun-Gyu LEE ,  Bong-Ki SHIN

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

    Abstract: [Object] It is an object of the present invention to provide an organic EL device in which various materials for an organic EL device, which is excellent in hole/electron injection/transport performance, electron blocking performance, stability in a thin film state, and durability, are combined as materials for an organic EL device that has high light emission efficiency and high durability so that properties of each of the materials can be effectively expressed, thereby achieving (1) high light emission efficiency and power efficiency, (2) a low light emission start voltage, (3) a low practical driving voltage, and particularly (4) a long lifetime.[Solving Means] There is provided an organic electroluminescence device, including at least an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in the stated order, the organic electroluminescence device being characterized in that the hole transport layer contains an arylamine compound represented by the following general formula (1), and the light-emitting layer contains a heterocyclic compound having a fused ring structure represented by the following general formula (2) or a heterocyclic compound having a fused ring structure represented by the following general formula (3).

    ORGANIC ELECTROLUMINESCENT ELEMENT
    5.
    发明申请
    ORGANIC ELECTROLUMINESCENT ELEMENT 有权

    公开(公告)号：US20220077403A1

    公开(公告)日：2022-03-10

    申请号：US17417267

    申请日：2019-12-18

    Applicant: Hodogaya Chemical Co., Ltd. ,  SFC CO., LTD.

    Inventor： Yuta HIRAYAMA ,  Takeshi YAMAMOTO ,  Shunji MOCHIZUKI ,  Shuichi HAYASHI ,  Se-Jin LEE ,  Oun-Gyu LEE ,  Bong-Ki SHIN

    IPC: H01L51/00

    Abstract: The present invention provides various organic electroluminescent elements using a material for a capping layer and a material for a luminous layer, in which the material for a capping layer uses an arylamine material that exhibit excellent stability and durability in the form of a thin film, especially a specific amine compound having a high refractive index and having a high absorbance within a wavelength range from 400 nm to 410 nm in the absorption spectrum at a concentration of 10−5 mol/L; and in which the material for a luminous layer uses a compound containing a heterocyclic compound that has a specific fused ring structure.

    ORGANIC ELECTROLUMINESCENT ELEMENT
    6.
    发明申请
    ORGANIC ELECTROLUMINESCENT ELEMENT 有权

    公开(公告)号：US20250024698A1

    公开(公告)日：2025-01-16

    申请号：US18574791

    申请日：2022-08-01

    Applicant: HODOGAYA CHEMICAL CO., LTD. ,  SFC CO., LTD.

    Inventor： Junichi IZUMIDA ,  Sang-Won KO ,  Bong-Hyang LEE ,  Jung-Ho RYU ,  Jin-ho LEE ,  Kouki KASE ,  Shuichi HAYASHI ,  Se-Jin LEE ,  Tae-Jung YU ,  Young-Tae CHOI ,  Sung-Hoon JOO ,  Byung-Sun YANG ,  Ji-Hwan KIM ,  Bong-Ki SHIN

    IPC: H10K50/15 ,  H10K50/12 ,  H10K85/60

    Abstract: An object of the present invention is to provide a material for organic EL elements, the material being excellent in hole injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability. Another object of the present invention is to provide an organic EL element having high efficiency, a low driving voltage, and a long lifespan, by combining the aforementioned material with various materials for organic EL elements, the materials being excellent in hole/electron injecting/transporting performance, electron-blocking capability, stability in the form of a thin film, and durability, such that the properties of the individual materials can be effectively exhibited. Focusing on the finding that a triarylamine compound having a specific structure is excellent in hole injecting/transporting capability, stability in the form of a thin film, and durability, a specific arylamine compound was selected and used as a material for a hole-transporting layer to produce an organic EL element, and thus, the present invention has been accomplished.

Patent Agency Ranking