Patent ID: 9082936
Filing Date: 2015-07-14
Classification: H01L

Abstract:
1. An illumination structure comprising: a flexible substrate, the substrate allowing light to pass through; a transparent first conductor layer overlying the substrate; an array of vertical light emitting diodes (VLEDs) that are printed on the transparent first conductor layer, each of the VLEDs having a bottom electrode electrically contacting the first conductor layer after printing; a dielectric material between the VLEDs overlying the first conductor layer, encapsulating sides of the VLEDs; a transparent second conductor layer overlying the VLEDs and dielectric layer, each of the VLEDs having a top electrode electrically contacting the second conductor layer; a phosphor layer overlying the second conductor layer; a first plurality of bus bars in contact with the first conductor layer and embedded in the dielectric material; a second plurality of second bus bars in contact with the second conductor layer and directly above the first plurality of bus bars; and the VLEDs being illuminated by a voltage differential between the first conductor layer and the second conductor layer such that bidirectional light emitted from each VLED of the array of the VLEDs passes through the first conductor layer and the second conductor layer.