Patent ID: 8461602
Filing Date: 2013-06-11
Classification: F21K,F21S,F21Y,H01L

Abstract:
1. A lighting device comprising: a first substrate; a plurality of non-packaged light emitting diode (LED) dies, each LED die having at least a first die electrode and a second die electrode; and a second substrate, wherein the first and second substrates are formed of a material sufficiently deformable to conform to at least a fraction of a thickness of a single LED die of the plurality of LED dies, the plurality of LED dies being spaced apart from one another and arranged between the first and second substrates, wherein the first and second substrates are deformed to conform to the plurality of LED dies and contact each other between the spaced apart plurality of LED dies to separately encapsulate each of the plurality of LED dies, wherein the first substrate has first connection locations electrically connected to first conductors formed on the first substrate, the first die electrode of associated LED dies being aligned with and electrically connected to an associated first connection location on the first substrate without wire bonds, and the second substrate has second connection locations electrically connected to second conductors formed on the second substrate, the second die electrode of associated LED dies being aligned with and electrically connected to an associated second connection location on the second substrate without wire bonds, wherein portions of the first conductors and portions of the second conductors overlap and electrically connect where the first substrate contacts the second substrate to create a series connection of the plurality of LED dies without using wire bonds, and wherein at least one of the first substrate and second substrate has light passing locations for outputting light emitted by the plurality of LED dies.