OPTICAL MEMBERS, METHODS FOR PRODUCING THE SAME AND DISPLAY DEVICES COMPRISING THE SAME

An optical member includes a transparent substrate, an alumina-based first transparent ceramic layer on the transparent substrate, and an alumina-based second transparent ceramic layer on the alumina-based first transparent ceramic layer such that the alumina-based first transparent ceramic layer is...

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Bibliographische Detailangaben
Hauptverfasser: KWON, Myong Jong, BAE, Jun Cheol, KIM, Ginam, PARK, Byung Ha
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:An optical member includes a transparent substrate, an alumina-based first transparent ceramic layer on the transparent substrate, and an alumina-based second transparent ceramic layer on the alumina-based first transparent ceramic layer such that the alumina-based first transparent ceramic layer is between the transparent substrate and the alumina-based second transparent ceramic layer. A refractive index of the alumina-based second transparent ceramic layer is smaller than a refractive index of the alumina-based first transparent ceramic layer. The alumina-based first transparent ceramic layer and the alumina-based second transparent ceramic layer may have independent compositions, and the independent compositions may each be a silica-free composition.