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    • 9. 发明申请
    • Phosphor and method of treating phosphor
    • 磷光体及其处理方法
    • US20050277570A1
    • 2005-12-15
    • US10528589
    • 2003-10-07
    • Takehiro ZukawaMasatoshi KitagawaMasaharu TerauchiJunko Asayama
    • Takehiro ZukawaMasatoshi KitagawaMasaharu TerauchiJunko Asayama
    • C09K11/08C09K11/77H01J1/63H01J61/44C11D1/00
    • C09K11/7734H01J61/44H01J2211/42Y10T428/2991Y10T428/2993
    • The present invention aims at realizing a PDP and a mercury-free fluorescent lamp feasible to maintain excellent luminescent characteristics over long periods by suppressing time-lapse changes in luminescent characteristics of a phosphor that is excited by vacuum ultraviolet light to thereby emit light. To accomplish this object, the oxide phosphor of the invention comprises individual particles, each of which has a region at and near the surface thereof modified, and the elemental composition of the surface region is in a more oxidized state than that of the internal region of the particles. Alternatively, the surface region has more halogen or chalcogen in the elemental composition. In the phosphor treatment method of the invention, the surface region of individual phosphor particles is selectively modified by (i) forming a highly reactive gas atmosphere by exciting gas which contains reactive gas, and (ii) exposing the phosphor to the gas atmosphere.
    • 本发明旨在实现通过抑制由真空紫外光激发的荧光体的发光特性的延时变化从而发光的方法,实现长时间保持优异发光特性的PDP和无汞荧光灯。 为了实现这个目的,本发明的氧化物荧光体包括单个颗粒,每个颗粒在其表面处和附近的区域都被修饰,并且表面区域的元素组成比内部区域的 颗粒。 或者,表面区域在元素组合物中具有更多的卤素或硫族元素。 在本发明的荧光体处理方法中,通过(i)通过激发含有反应性气体的气体形成高反应性气体气氛,并且(ii)将荧光体暴露于气体气氛,来选择性地修饰单个荧光体颗粒的表面区域。
    • 10. 发明授权
    • Phosphor and treatment method for the same
    • 磷光体和处理方法相同
    • US07468145B2
    • 2008-12-23
    • US10528589
    • 2003-10-07
    • Takehiro ZukawaMasatoshi KitagawaMasaharu TerauchiJunko Asayama
    • Takehiro ZukawaMasatoshi KitagawaMasaharu TerauchiJunko Asayama
    • C09K11/08
    • C09K11/7734H01J61/44H01J2211/42Y10T428/2991Y10T428/2993
    • The present invention aims at realizing a PDP and a mercury-free fluorescent lamp feasible to maintain excellent luminescent characteristics over long periods by suppressing time-lapse changes in luminescent characteristics of a phosphor that is excited by vacuum ultraviolet light to thereby emit light. To accomplish this object, the oxide phosphor of the invention comprises individual particles, each of which has a region at and near the surface thereof modified, and the elemental composition of the surface region is in a more oxidized state than that of the internal region of the particles. Alternatively, the surface region has more halogen or chalcogen in the elemental composition. In the phosphor treatment method of the invention, the surface region of individual phosphor particles is selectively modified by (i) forming a highly reactive gas atmosphere by exciting gas which contains reactive gas, and (ii) exposing the phosphor to the gas atmosphere.
    • 本发明旨在实现通过抑制由真空紫外光激发的荧光体的发光特性的延时变化从而发光的方法,实现长时间保持优异发光特性的PDP和无汞荧光灯。 为了实现这个目的,本发明的氧化物荧光体包括单个颗粒,每个颗粒在其表面处和附近的区域都被修饰,并且表面区域的元素组成比内部区域的 颗粒。 或者,表面区域在元素组合物中具有更多的卤素或硫族元素。 在本发明的荧光体处理方法中,通过(i)通过激发含有反应性气体的气体形成高反应性气体气氛,并且(ii)将荧光体暴露于气体气氛,来选择性地修饰单个荧光体颗粒的表面区域。