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Printable composition of a liquid or gel suspension of diodes

  • US 8,846,457 B2
  • Filed: 08/31/2011
  • Issued: 09/30/2014
  • Est. Priority Date: 05/31/2007
  • Status: Active Grant
First Claim
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1. A composition comprising:

  • a plurality of diodes, each diode of the plurality of diodes comprising;

    a light emitting or absorbing region having a diameter between about 20 and 30 microns and a height between about 2.5 to 7 microns;

    a first terminal coupled to the light emitting or absorbing region on a first side, the first terminal having a height between about 1 to 6 microns; and

    a second terminal coupled to the light emitting or absorbing region on a second side opposite the first side, the second terminal having a height between about 1 to 6 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.

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