Suspensions and methods for deposition of luminescent materials and articles produced thereby
AssigneeMicron Technology, Inc.
InventorSurjit S. Chadha
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Abstract
The present invention provides suspensions and methods for depositing luminescent materials (e.g., phosphors) using electrophoresis, particularly during the preparation of display devices, such as field emission display devices, and the articles produced thereby. The luminescent material is deposited onto a substrate having thereon a metal-containing transparent, conductive coating. The suspension includes a nonaqueous liquid, a luminescent material, and a salt of a metal of the transparent, conductive coating.
Claims18
A field emission display device comprising substrate having thereon a metal-containing transparent, conductive coating, and a luminescent layer deposited from a suspension
- comprising:
- a nonaqueous liquid;
- a luminescent material;
- and
- a salt of a metal of the transparent conductive coating, wherein the salt is
- present in the suspension at a concentration of no greater than about 1×10−4 mole/liter.
A field emission display device comprising a substrate having thereon a metal-containing transparent, conductive coating layer of a luminescent material deposited from a suspension comprising:
- a polar organic liquid;
- a dielectric phosphor;
- and
- a salt of a metal of the transparent, conductive coating, wherein the salt is present in the suspension at a concentration of no greater than about 1×10−4 mole/liter.
A substrate for use in a field emission display device, the substrate having thereon a metal-containing transparent, conductive coating and a layer of luminescent material deposited from a suspension comprising:
- a nonaqueous liquid;
- a luminescent material;
- and
- a salt of a metal of the transparent conductive coating, wherein the salt is
- present in the suspension at a concentration of no greater than about 1 ×10−4 mole/liter.
Dependencies are inferred from the claim text.