Printable composition of a liquid or gel suspension of diodes
First Claim
1. A composition comprising:
- a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns;
a first solvent; and
a viscosity modifier.
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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. In other exemplary embodiments a second solvent is also included, and the composition has a viscosity substantially between about 100 cps and about 25,000 cps at about 25° C. In an exemplary embodiment, a composition comprises: a plurality of diodes or other two-terminal integrated circuits; one or more solvents comprising about 15% to 99.9% of any of N-propanol, isopropanol, dipropylene glycol, diethylene glycol, propylene glycol, 1-methoxy-2-propanol, N-octanol, ethanol, tetrahydrofurfuryl alcohol, cyclohexanol, and mixtures thereof; a viscosity modifier comprising about 0.10% to 2.5% methoxy propyl methylcellulose resin or hydroxy propyl methylcellulose resin or mixtures thereof; and about 0.01% to 2.5% of a plurality of substantially optically transparent and chemically inert particles having a range of sizes between about 10 to about 50 microns.
390 Citations
104 Claims
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1. A composition comprising:
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a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; a first solvent; and a viscosity modifier. - 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 composition comprising:
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a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; a first solvent; and a viscosity modifier; wherein the composition has a viscosity substantially about 100 cps to about 25,000 cps at about 25°
C. - View Dependent Claims (59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86)
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87. A composition comprising:
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a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; a first solvent; a second solvent different from the first solvent; and a viscosity modifier; wherein the composition has a viscosity substantially about 50 cps to about 25,000 cps at about 25°
C. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
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102. A composition comprising:
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a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; and cyclohexanol; and a viscosity modifier to provide a viscosity of the composition substantially between about 100 cps and about 20,000 cps at about 25°
C.
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103. A composition comprising:
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a plurality of diodes, 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 the diode has a lateral dimension less than about 50 microns and a height less than about 25 microns; a first solvent selected from the group consisting of;
N-propanol, isopropanol, dipropylene glycol, diethylene glycol, propylene glycol, 1-methoxy-2-propanol, 1-octanol, ethanol, tetrahydrofurfuryl alcohol, cyclohexanol, and mixtures thereof;at least one viscosity modifier selected from the group consisting of;
methoxy propyl methylcellulose resin, hydroxy propyl methylcellulose resin, a polyvinyl polymer, a polyvinyl copolymer, and mixtures thereof; anda second solvent different from the first solvent, the second solvent selected from the group consisting of;
N-propanol, isopropanol, dipropylene glycol, diethylene glycol, propylene glycol, 1-methoxy-2-propanol, 1-octanol, ethanol, tetrahydrofurfuryl alcohol, cyclohexanol, and mixtures thereof. - View Dependent Claims (104)
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Specification