Light-emitting phosphor particles and electroluminescent devices employing same
AssigneeLumimove, Inc.
InventorPatrick J. Kinlen
Life of this patent
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Abstract
Light-emitting substance-coated phosphor particles and light-emitting devices employing phosphor particles and light-emitting substances are provided. Also provided are light-emitting devices employing a layer of phosphor material that is covered by at least one layer of light-emitting polymers and/or light-emitting small molecules, and methods of making same.
Claims31
A phosphor particle having a coating that comprises a light emitting polymer wherein the coating encapsulates the phosphor particle.
A method for fabricating an electroluminescent display device comprising:
- a phosphor particle having a coating that comprises a light-emitting polymer wherein the coating encapsulates the phosphor particle;
- formulating an ink by mixing the coated phosphor particles with at least one binder polymer;
- depositing a conducting rear electrode onto a substrate in a pattern;
- depositing said ink onto said rear electrode to form a layer;
- optionally depositing a transparent hole transporting electrode onto said layer;
- and
- depositing a front outlining electrode;
- and
- depositing connection leads to the rear electrode and the front outlining electrode.
A method of preparing a light-emitting substance coated phosphor particle, which comprises coating on a phosphor particle wherein the coating comprises a light-emitting polymer and a light-emitting small molecule and the coating encapulates the phoshor particle.
A method for fabricating an electroluminescent display device comprising:
- formulating an ink by mixing phosphor particles with at least one binder polymer;
- depositing a conducting rear electrode onto a substrate in a pattern;
- depositing said ink onto said rear electrode to form a layer;
- depositing a layer containing a light-emitting polymer onto said layer;
- optionally depositing a transparent hole transporting electrode onto said layer;
- and
- depositing a front outlining electrode;
- and
- depositing connection leads to the rear electrode and the front outlining electrode.
An electroluminescent display device comprising:
- a phosphor particle having a coating comprising a light emitting polymer wherein the coating encapulates the phosphor particle;
- an ink comprising said coated phosphor particles and at least one binder polymer;
- a conducting rear electrode on a substrate in a pattern;
- said ink deposited onto said rear electrode;
- an optional transparent hole transporting electrode;
- a front outlining electrode;
- and
- connection leads to the rear electrode and the front outlining electrode.
An electroluminescent display device comprising:
- an ink formulated by mixing phosphor particles with at least one binder polymer;
- a conducting rear electrode deposited onto a substrate in a pattern;
- said ink deposited onto said rear electrode;
- a layer containing a light-emitting polymer;
- an optional transparent hole transporting electrode;
- a front outlining electrode deposited onto said hole transporting electrode;
- and
- connection leads to the rear electrode and the front outlining electrode.
Dependencies are inferred from the claim text.