LIGHT EMITTING DISPLAY DEVICE

Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element (ED). The light emitting display device includes: an uneven portion (170) that is provided over a substrate and includes a plurality of concave portions (...

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Bibliographic Details
Main Authors KIM, Jintae, SIM, Dongmin, LEE, KangJu
Format Patent
LanguageEnglish
French
German
Published 27.03.2024
Subjects
ELECTRICITY
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Summary:Disclosed is a light emitting display device that can enhance light extraction efficiency of light which is emitted from a light emitting element (ED). The light emitting display device includes: an uneven portion (170) that is provided over a substrate and includes a plurality of concave portions (171) separated from each other and protruding portions (173) between the plurality of concave portions (171); and a light emitting element (ED) that is provided over the uneven portion (170). Each protruding portion (173) includes a vertex portion (VP) that is provided between three neighboring concave portions (171) and a connection portion (CP) that is connected to two neighboring vertex portions (VP) between two neighboring concave portions and has a height less than that of the vertex portions (VP).
Bibliography:Application Number: EP20190194682