ORGANIC EL PANEL, AND MANUFACTURING METHOD OF ORGANIC EL PANEL

To provide a technique for supplying electrons efficiently from a reference electrode to a negative electrode via an electron transport layer and an electron injection layer.SOLUTION: An organic EL panel 2 comprising multiple organic EL elements 13, having a positive electrode 21, a luminous layer 2...

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Bibliographic Details
Main Authors AMADA SHINYA, IMADA YU, HAYASHI TERUYUKI
Format Patent
LanguageEnglish
Japanese
Published 26.12.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:To provide a technique for supplying electrons efficiently from a reference electrode to a negative electrode via an electron transport layer and an electron injection layer.SOLUTION: An organic EL panel 2 comprising multiple organic EL elements 13, having a positive electrode 21, a luminous layer 26, an electron transport layer 27, an electron injection layer 28 and a negative electrode 22, in this order, in matrix, and where the electron transport layer 27, the electron injection layer 28 and the negative electrode 22 are formed continuously across the multiple organic EL elements 13, further includes an auxiliary electrode 30 for supplying electrons to the negative electrode 22 via the electron transport layer 27 and the electron injection layer 28, between the multiple organic EL elements 13, and an isolating layer 40 where a first opening 41 in which the luminous layer 26 is formed, and a second opening 42 in which an electron feed passage from the auxiliary electrode 30 to the negative electrode 22 is formed, are formed. A work function of the surface of the auxiliary electrode 30 opposing the electron transport layer 27 is smaller than that of the surface of the positive electrode 21 opposing the luminous layer 26.SELECTED DRAWING: Figure 2 【課題】電子輸送層および電子注入層を介して補助電極から陰極に電子を効率良く供給する技術を提供する。【解決手段】陽極２１と発光層２６と電子輸送層２７と電子注入層２８と陰極２２とをこの順で有する有機ＥＬ素子１３をマトリックス状に複数有し、電子輸送層２７と電子注入層２８と陰極２２とが複数の有機ＥＬ素子１３に亘って連続的に形成される、有機ＥＬパネル２であって、複数の有機ＥＬ素子１３の間において、電子輸送層２７および電子注入層２８を介して陰極２２に電子を供給する補助電極３０と、発光層２６が内部に形成される第１開口部４１と、補助電極３０から陰極２２への電子の供給路が形成される第２開口部４２とが形成される絶縁層４０とを有し、補助電極３０の電子輸送層２７に対向する表面の仕事関数が、陽極２１の発光層２６に対向する表面の仕事関数よりも小さい、有機ＥＬパネル２。【選択図】図２
Bibliography:Application Number: JP20180115240