Disclosed is a light emitting diode (LED) having improved light extraction efficiency. The LED includes a light emitting structure positioned on a substrate and having a first semiconductor layer, an active layer and a second semiconductor layer. A first electrode pad is electrically connected to the first semiconductor layer. A second electrode pad is positioned on the substrate. An insulating reflective layer covers a portion of the light emitting structure, and is positioned under the second electrode pad, so that the second electrode pad is spaced apart from the light emitting structure. At least one upper extension is connected to the second electrode pad to be electrically connected to the second semiconductor layer. Further, a pattern of light extraction elements is positioned on the second semiconductor layer.


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    Titel :

    Light emitting diode with improved light extraction efficiency


    Beteiligte:
    YANG JEONG HEE (Autor:in) / KIM KYOUNG WAN (Autor:in) / YOON YEO JIN (Autor:in) / KIM JAE MOO (Autor:in) / LEE KEUM JU (Autor:in)

    Erscheinungsdatum :

    05.09.2017


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H05B ELECTRIC HEATING , Elektrische Heizung



    Improved external efficiency of light emitting diode using organic thin film

    Wo-Wai Lai, / Po-King Ng, / Chan, M.C.Y. et al. | IEEE | 1999



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