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US 2012/0235172 A1Published application
Three dimensional light emitting diode systems, and compositions and methods relating thereto
AssigneeE. I. Du Pont de Nemours and Company
InventorKURT DOUGLAS ROBERTS
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Abstract
A flexible layered structure is disclosed having a flexible top conductive layer, a flexible bottom heat sink layer and a flexible dielectric middle layer. The combination has a longitudinal axis and a plurality of defined positions spaced along the longitudinal axis. The defined positions can be used for aligning a circuit and/or for the placement of LED lights. The flexible layered structure can be easily bent to form a LED substrate for shining light in more than one direction while efficiently removing heat arising from the LEDs.
Claims6
An LED lighting assembly comprising:
- i. a flexible top conductive layer comprising a first conductive metal, the flexible top conductive layer having a thickness from 4 to 100 microns;
- ii. a flexible bottom heat sink layer comprising a second conductive metal and the flexible bottom heat sink layer having a thickness of at least 50 microns;
- iii. a flexible dielectric middle layer comprising a polymer, the flexible dielectric middle layer having a thickness from 4 to 100 microns and providing electrical insulation between the flexible top conductive layer and the flexible bottom heat sink layer;
- the first conductive metal of the flexible top conductive layer being the same or different from the second conductive metal of the flexible bottom heat sink layer;
- said LED lighting assembly having a longitudinal axis and a plurality of defined positions spaced along the longitudinal axis, and being bent at least degrees proximate at least one of the plurality of defined positions spaced along the longitudinal axis or being twisted relative to the longitudinal axis;
- and
- wherein at least a portion of the plurality of defined positions comprise an LED and wherein the LED is in electrical communication with a circuit.
4 more elements
Dependencies are inferred from the claim text.