Outdoor electroluminescent display devices

A device structure and method for outdoor signs utilizing organic light emitting device (OLED) technology. Exemplary embodiments of the device include an OLED (100) that is patterned into a sign combined with an exterior layer consisting of a highly scattering (130), non-absorbing coating over the O...

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Bibliographische Detailangaben
Hauptverfasser:	TURNER, LARRY GENE, DUGGAL, ANIL RAJ
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	A device structure and method for outdoor signs utilizing organic light emitting device (OLED) technology. Exemplary embodiments of the device include an OLED (100) that is patterned into a sign combined with an exterior layer consisting of a highly scattering (130), non-absorbing coating over the OLED emitting regions and a highly absorbing coating (135) over the non-emitting regions. The result is a sign that can be viewed using organic electroluminescent (EL) light under low ambient light level conditions, and due to the exterior coating, can also be viewed under high ambient light conditions.