| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce effects of emission luminance change of a blue-light emitting body which exhibits blue light emission (a blue-light emitting body) by electric field excitation, that is, a blue-light emitting body which is applicable to an inorganic EL element on the chromaticity coordinates of the light it emits, further, to improve the repeatability of images displayed on a light emitting device including the inorganic EL element and to attain stable display with the light emitting device which is hardly affected by luminance change. Ž<P>SOLUTION: In a method for manufacturing an inorganic EL blue-light emitting body, a sulfide light emitting body, an additive, and a copper compound are mixed and the obtained mixture is fired at 600 to 1,000°C, whereby the sulfide light emitting body can include copper sulfide (Cu<SB>x</SB>S, wherein x is preferably 0.5 to 2.5) as a part of the sulfide light emitting body. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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