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    • 7. 发明申请
    • METHOD FOR MANUFACTURING INORGANIC EL BLUE-LIGHT EMITTING BODY
    • 制造无机EL蓝光发光体的方法
    • US20090215353A1
    • 2009-08-27
    • US12367796
    • 2009-02-09
    • Junichiro SAKATARie MATSUBARA
    • Junichiro SAKATARie MATSUBARA
    • H01J9/00
    • C09K11/612H05B33/145
    • An object is to reduce effects of emission luminance change of the a 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, another object is to improve the repeatability of images displayed on a light emitting device including the inorganic EL element and to realize stable display with the light emitting device which is hardly affected by luminance change. 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 baked at 600° C. or more and 1000° C. or less, whereby the sulfide light emitting body can include copper sulfide (CuxS, wherein x is preferably 0.5 to 2.5) as a part of the sulfide light emitting body.
    • 本发明的目的是减少通过电场激发发出蓝色发光的发光体(蓝色发光体)的发光亮度变化的影响,即可应用于无机EL的蓝色发光体 元素对其发出的光的色度坐标。 此外,另一个目的是提高显示在包括无机EL元件的发光器件上的图像的重复性,并且使用几乎不受亮度变化影响的发光器件实现稳定的显示。 在制造无机EL蓝光发射体的方法中,混合硫化物发光体,添加剂和铜化合物,将得到的混合物在600℃以上1000℃以下进行烘烤, 由此,作为硫化物发光体的一部分,硫化物发光体可以包括硫化铜(CuxS,其中x优选为0.5〜2.5)。