Phosphors
AssigneeNanoGram Corporation
InventorsNobuyuki Kambe, Xiangxin Bi
Life of this patent
Estimating the term…
Abstract
Small particles provide for improved performance as phosphors especially in the production of display devices. Particles with a diameter less than about 100 nm have altered band properties that affect the emission by the particles. A collection of such small particles with a narrow distribution around a selected average diameter can be used to produce emission at a desired frequency. These particles are effective for producing a wide variety of display types including flat panel displays. Laser pyrolysis provides an efficient process for the production of desired particles.
Claims17
A display device comprising phosphor particles having an average diameter less than about 95 nm and wherein the phosphor particles comprise a first collection of particles having a diameter distribution such that at least about 95 percent of the particles have a diameter greater than about 40 percent of the average diameter and less than about 160 percent of the average diameter and the phosphor particles comprising a metal oxide.
Dependencies are inferred from the claim text.