Patent ID: 7952279
Filing Date: 2011-05-31
Classification: C09K,H01J,Y10T

Abstract:
1. A plasma display panel comprising: a front panel, which includes a transparent substrate and display electrodes that are arranged in stripes on the transparent substrate; and a rear panel, which includes a supporting substrate, address electrodes that are arranged in stripes on the supporting substrate, a number of barrier ribs that are arranged on the supporting substrate to be located at least between the address electrodes, and a fluorescence layer that is arranged so as to cover the address electrodes between the barrier ribs, wherein the front and rear panels are arranged to face each other such that the address electrodes and the display electrodes cross each other substantially at right angles and an electrical discharge gas is confined within a space between the barrier ribs, and wherein the fluorescence layer includes a fluorescence particle for use in a light emitting display device, the particle being made of a fluorescent material, wherein the fluorescent material has at least one element selected from the group consisting of Al, Mg, Ca, Ba, Sr and Y, and wherein within a range from the surface of the fluorescence particle through a depth of 20 nm, the at least one element has a maximum value of its concentration profile in the depth direction.