Apparatus with forward and reverse-biased light emitting diodes coupled in parallel
First Claim
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1. A lighting apparatus comprising:
- a plurality of first conductors;
a plurality of light emitting diodes distributed in parallel on a first conductor of the plurality of first conductors, at least some of the plurality of light emitting diodes having a first, forward-bias orientation and at least one of the plurality of light emitting diodes having a second, reverse-bias orientation;
at least one second conductor coupled to the plurality of diodes and coupled to a second conductor of the plurality of first conductors; and
a dispersion structure, panel or layer spaced apart or offset from at least some of the plurality of light emitting diodes by a predetermined distance, the dispersion structure, panel or layer comprising at least one emissive or luminescent layer or region.
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Abstract
An exemplary printable composition of a liquid or gel suspension of diodes generally includes a plurality of diodes, a first solvent and/or a viscosity modifier. An exemplary apparatus may include: a plurality of diodes; at least a trace amount of a first solvent; and a polymeric or resin film at least partially surrounding each diode of the plurality of diodes. Various exemplary diodes have a lateral dimension between about 10 to 50 microns and about 5 to 25 microns in height. Other embodiments may also include a plurality of substantially chemically inert particles having a range of sizes between about 10 to about 50 microns.
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Citations
20 Claims
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1. A lighting apparatus comprising:
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a plurality of first conductors; a plurality of light emitting diodes distributed in parallel on a first conductor of the plurality of first conductors, at least some of the plurality of light emitting diodes having a first, forward-bias orientation and at least one of the plurality of light emitting diodes having a second, reverse-bias orientation; at least one second conductor coupled to the plurality of diodes and coupled to a second conductor of the plurality of first conductors; and a dispersion structure, panel or layer spaced apart or offset from at least some of the plurality of light emitting diodes by a predetermined distance, the dispersion structure, panel or layer comprising at least one emissive or luminescent layer or region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A lighting apparatus comprising:
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a light dispersive or reflective structure comprising at least one emissive or luminescent layer or region; and a light emitting structure to provide illumination to the light dispersive or reflective structure, the light emitting structure spaced apart or offset from the light dispersive or reflective structure by a predetermined distance, the light emitting structure comprising; a plurality of first conductors; a plurality of light emitting diodes distributed in parallel and stochastically on a first conductor of the plurality of first conductors, at least some of the plurality of light emitting diodes having a first, forward-bias orientation and at least one of the plurality of light emitting diodes having a second, reverse-bias orientation; and at least one second conductor coupled to the plurality of diodes and coupled to a second conductor of the plurality of first conductors. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A lighting apparatus having a laminate structure, comprising:
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a light dispersive or reflective layer comprising at least one emissive or luminescent layer or region; and a light emitting layer to provide illumination to the light dispersive or reflective layer, the light emitting layer spaced apart or offset from the light dispersive or reflective layer by a predetermined distance, the light emitting layer comprising; a plurality of light emitting diodes, each diode of the plurality of light emitting diodes having a lateral dimension between 10 to 50 microns and a height between 5 to 25 microns, each diode of the plurality of light emitting diodes comprising; a light emitting region having a lateral dimension between about 10 microns to 50 microns and a height between about 2 to 7 microns; a first terminal coupled to the light emitting region on a first side, the first terminal having a height greater than zero and less than about 6 microns; and a second terminal coupled to the light emitting region on a second side opposite the first side, the second terminal having a height greater than zero and less than about 6 microns; one or more first conductors coupled to a first plurality of first terminals of the plurality of light emitting diodes; a first dielectric layer coupled to the one or more first conductors; and one or more second conductors coupled to a first plurality of second terminals of the plurality of light emitting diodes. - View Dependent Claims (19, 20)
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Specification