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US 6,975,067 B2Granted
Organic electroluminescent device and encapsulation method
Assignee3M Innovative Properties Company
InventorsFred B. McCormick, Jon E. Ottman, Raghunath Padiyath
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Abstract
Organic electroluminescent devices and methods of preparing such devices are provided. The organic electroluminescent devices include a first electrode, a light emitting structure, a second electrode, a conductive layer, and a non-conductive material. The light emitting structure is disposed between the first and second electrodes. The conductive layer is disposed on at least a portion of the second electrode and is in electrical communication with the second electrode through an opening in the non-conductive material.
Claims25
An organic electroluminescent device comprising:
- a) a first electrode;
- b) a second electrode;
- c) a light emitting structure disposed between the first and second electrodes;
- d) a conductive layer disposed over at least a portion of the second electrode;
- and
- e) a non-conductive material defining an opening through which the conductive layer is in electrical communication with the second electrode, said non-conductive material comprising a thermoplastic polymeric material, wherein (i) the second electrode is in direct contact with the non-conductive material in any portion of the second electrode extending beyond the opening, (ii) the area of the opening is smaller than the area of the surface of the second electrode opposite the light emitting structure, and (iii) all portions of a surface of the non-conductive layer opposite the second electrode are in contact with the conductive layer.
3 more elements
Dependencies are inferred from the claim text.