| 摘要 |
PROBLEM TO BE SOLVED: To provide a particle-dispersed electroluminescence element with a high intensity, and an electroluminescence phosphor particulate suitably used therefor. SOLUTION: A production method of the phosphor particulate comprises a step wherein an intermediate phosphor particulate is produced by firing a mixture containing zinc sulfide, a step wherein a dislocation line is introduced by applying stress to the intermediate phosphor particulate and a step wherein the intermediate phosphor particulate to which the stress is applied is re-fired. Here, in the step wherein the stress is applied to the intermediate phosphor particulate, the stress is applied to a mixture wherein the intermediate phosphor particulate is mixed with a powder other than the phosphor particulate having an average particle size smaller than that of the intermediate phosphor particulate. The electroluminescence element has a light-emitting layer formed using the phosphor particulate. COPYRIGHT: (C)2006,JPO&NCIPI
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