Method of manufacturing a printable composition of a liquid or gel suspension of diodes
First Claim
1. A method of making a liquid or gel suspension of diodes for printing, the method comprising:
- adding a viscosity modifier to a plurality of diodes in a first solvent, each diode of the plurality of diodes comprising;
a light emitting or absorbing region, the light emitting or absorbing region having a mesa region;
at least one first terminal coupled to the light emitting or absorbing region on a first side and located peripherally to the mesa region; and
a second terminal coupled centrally to the mesa region on the first side;
wherein each diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; and
mixing the plurality of diodes, the first solvent and the viscosity modifier to form the liquid or gel suspension of the plurality of diodes.
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Accused Products
Abstract
An exemplary printable composition of a liquid or gel suspension of diodes comprises a plurality of diodes, a first solvent and/or a viscosity modifier. An exemplary method of making a liquid or gel suspension of diodes comprises: adding a viscosity modifier to a plurality of diodes in a first solvent; and mixing the plurality of diodes, the first solvent and the viscosity modifier to form the liquid or gel suspension 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.
356 Citations
76 Claims
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1. A method of making a liquid or gel suspension of diodes for printing, the method comprising:
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adding a viscosity modifier to a plurality of diodes in a first solvent, each diode of the plurality of diodes comprising; a light emitting or absorbing region, the light emitting or absorbing region having a mesa region; at least one first terminal coupled to the light emitting or absorbing region on a first side and located peripherally to the mesa region; and a second terminal coupled centrally to the mesa region on the first side; wherein each diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; and mixing the plurality of diodes, the first solvent and the viscosity modifier to form the liquid or gel suspension of the plurality of diodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A method of making a liquid or gel suspension of diodes for printing, the method comprising:
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adding a second solvent to a plurality of diodes in a first solvent, the second solvent different from the first solvent, each diode of the plurality of diodes comprising; a light emitting or absorbing region, the light emitting or absorbing region having a mesa region; at least one first terminal coupled to the light emitting or absorbing region on a first side and located peripherally to the mesa region; and a second terminal coupled centrally to the mesa region on the first side; wherein each diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; adding a viscosity modifier to the plurality of diodes, the first solvent and the second solvent; adding a plurality of substantially chemically inert particles to the plurality of diodes, the first solvent, the second solvent and the viscosity modifier; and mixing the plurality of diodes, the first solvent, the second solvent, the viscosity modifier, and the plurality of substantially chemically inert particles until the viscosity is at least about 100 centipoise (cps) measured at about 25°
C. to form the liquid or gel suspension of the plurality of diodes. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69)
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70. A method of making a liquid or gel suspension of diodes for printing, the method comprising:
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adding a viscosity modifier to a plurality of diodes, a first solvent and a second solvent, the second solvent different from the first solvent, each diode of the plurality of diodes comprising; a light emitting or absorbing region, the light emitting or absorbing region having a mesa region; at least one first terminal coupled to the light emitting or absorbing region on a first side and located peripherally to the mesa region; and a second terminal coupled centrally to the mesa region on the first side; wherein each diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; adding a plurality of substantially chemically inert particles to the plurality of diodes, the first solvent, the second solvent and the viscosity modifier, wherein each particle of the plurality of substantially chemically inert particles has a size between about 10 microns to about 70 microns in any dimension; and mixing the plurality of diodes, the first solvent, the second solvent, the viscosity modifier, and the plurality of substantially chemically inert particles until the viscosity is at least about 1,000 centipoise (cps) measured at about 25°
C. to form the liquid or gel suspension of the plurality of diodes. - View Dependent Claims (71, 72, 73, 74, 75, 76)
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Specification