Claims
- 1. A luminescent composition for use in a display device comprising a substantially uniform mixture of at least one phosphor having a particle size of about (ten) one-half micrometer or less and in an amount sufficient to cause the luminescent composition to generate light substantially uniformly upon application of a phosphor excitation means, and a dielectric material formed by a sol-gel process, wherein the dielectric material is in an amount sufficient to substantially encapsulate the phosphor, and wherein the phosphor is 40% to 80% by weight of the composition and the dielectric material is 60% to 20% by weight of the composition.
- 2. The luminescent composition of claim 1 wherein the phosphor has a particle size of about (1 to about 10 micrometers) one-tenth micrometer or less.
- 3. The luminescent composition of claim 1 wherein the phosphor is selected from the group consisting of single crystal phosphors and nanocrystals of phosphors.
- 4. The luminescent composition of claim 1 wherein the sol gel is selected from the group consisting of silicon dioxide, silicon nitride, lead zirconate titanate, potassium niobium trioxide, barium titanium trioxide, lithium niobium trioxide, sulfur boron nitride, lead boron nitride and potassium titanium nitride.
GOVERNMENT INTEREST
The invention described herein may be manufactured, used, and licensed by or for the Government of the United States of America without the payment to me of any royalty thereon.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
5-121169 |
May 1993 |
JPX |
Non-Patent Literature Citations (3)
Entry |
Budd, K.D., et al "Optical Properties and Densification of Sol-Gel DerivedbTiO3 Layers", SPIE vol. 1328 Sol-Gel Optics 1990. No Month. |
Chen, J., et al "Rapid Thermal Annealing of Sol-Gel Derived Lead Zirconate Titanate Thin Films", J. Appl. Phys. 71(9) May 1992. |
Nosaka et al, "Sol-Gel Processing for BaTiO3 and Application to an A.C. Powder Electroluminescence Device", J. Mat'l. Sci. Lett., 10(7), pp. 406-407, 1990 no month. |