Phosphor and plasma display panel
AssigneeKonica Minolta Medical & Graphic, Inc.
InventorsHideki Hoshino, Kazuyoshi Goan, Kazuya Tsukada, Naoko Furusawa, Hisatake Okada
Life of this patent
Estimating the term…
Abstract
Disclosed are a phosphor in which prevention of aging deterioration of luminance and prevention of deterioration of discharging characteristics are compatible, a method of manufacturing the phosphor, and a plasma display panel manufactured by using the phosphor. A phosphor of the invention containing Mn as an activator is one with Mn serving as a major emission, wherein a ratio of an activator concentration in a superficial portion of a phosphor particle to an activator concentration inside the phosphor particle is 0.3-0.7.
Claims7
A phosphor comprising Zn2SiO4:Mn particles,
- wherein Mn is an activator, and a ratio of the activator concentration in a superficial portion of a phosphor particle to the activator concentration inside the phosphor particle is 0.3-0.7.
Dependencies are inferred from the claim text.