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Light Fixtures

OLED-display-having-thermally-conductive-layer

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Details

Inventors: Cok, Ronald S.;
Assignee: Eastman Kodak Company (Rochester, NY)
Primary Examiner: Patel; Ashok
Assistant Examiner:
Attorney, Agent or Firm: Anderson; Andrew J.

An OLED display is described comprising: a) a substrate; b) one or more OLED light emitting elements including a first electrode formed on the substrate, one or more OLED light emissive layers located over the first electrode, and a second electrode located over the OLED light emissive layers; and c) an encapsulating cover located over the second electrode and affixed to the substrate; wherein the substrate or cover comprises a composite of a non-metallic layer and a metal layer, where the metal layer has a thickness between 1 micron and 1,000 microns and is thinner than the non-metallic layer. The invention enables OLED displays with improved lifetime, while minimizing need for increased substrate and/or cover layer thickness.

DETAILED DESCRIPTION In accordance with one embodiment of the invention, an OLED display is described comprising: a) a substrate; b) one or more OLED light emitting elements including a first electrode formed on the substrate, one or more OLED light emissive layers located over the first electrode, and a second electrode located over the OLED light emissive layers; and c) an encapsulating cover located over the second electrode and affixed to the substrate; wherein the substrate or cover comprises a composite of a non-metallic layer and a metal layer, where the metal layer has a thickness between 1 micron and 1,000 microns and is thinner than the non-metallic layer.
The invention enables OLED displays with improved lifetime, while minimizing need for increased substrate and/or cover layer thickness.

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