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    • 5. 发明公开
    • Electromagnetic shielding sheet and plasma display apparatus using the same
    • Elektromagnetische Abschirmfolie und Plasmaanzeigevorrichtung mit selbiger
    • EP2068341A2
    • 2009-06-10
    • EP08165309.9
    • 2008-09-26
    • LG Electronics Inc.
    • Cha, Hong RaeKwon, Gi JinSeo, Eun SeongPark, Jin WooShin, Woon SeoMoon, Joon KwonSohn, Ji Hoon
    • H01J17/16H01J17/49
    • H01J11/44H01J11/12H01J2211/444H01J2211/446H01J2329/869H01L51/5284H05K9/0094H05K9/0096
    • There are provided an electromagnetic shielding sheet and a plasma display apparatus. The electromagnetic shielding sheet includes a base sheet; a first sheet including first and second patterns formed in directions crossing each other on a first surface of the base sheet; and a second sheet including a third pattern formed on a second surface of the base sheet. The first and second patterns include a conductive material, the third pattern includes a light absorbing material, and at least one of the first and second patterns is grounded. Accordingly, conductive patterns for shielding electromagnetic waves and blocking external light are formed on a first surface of a base sheet, and patterns for blocking external light are formed on a second surface of the base sheet, so that the functions of shielding electromagnetic waves and blocking external light can be simultaneously performed using one sheet, and therefore, the ambient contrast ratio of a display image can be enhanced without increasing manufacturing costs. Further, patterns for shielding electromagnetic waves are directly formed a glass member of a filter or an upper substrate of the panel, so that processes of forming an electromagnetic shielding sheet can be easily performed.
    • 提供了电磁屏蔽片和等离子体显示装置。 电磁屏蔽片包括基片; 第一片,包括在基片的第一表面上彼此交叉的方向形成的第一和第二图案; 以及第二片,其包括形成在所述基片的第二表面上的第三图案。 第一和第二图案包括导电材料,第三图案包括光吸收材料,并且第一和第二图案中的至少一个是接地的。 因此,在基片的第一表面上形成用于屏蔽电磁波和阻挡外部光的导电图案,并且在基片的第二表面上形成用于阻挡外部光的图案,使得屏蔽电磁波和屏蔽的功能 可以使用一片同时进行外部光,因此,可以在不增加制造成本的情况下增强显示图像的环境对比度。 此外,用于屏蔽电磁波的图案直接形成为面板的过滤器或上基板的玻璃构件,从而可以容易地进行形成电磁屏蔽片的工艺。