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    • 3. 发明授权
    • Method of manufacturing a color TV focusing mask
    • 制作彩色电视聚焦罩的方法
    • US4659317A
    • 1987-04-21
    • US267027
    • 1981-05-26
    • David C. Boyd
    • David C. Boyd
    • H01J9/14H01J9/00
    • H01J9/146
    • A method of manufacturing a focusing shadow mask for a color cathode ray tube is disclosed in which two conductive plates or surfaces, forming the electrode structure, are secured together by insulating material so that they do not contact each other. Strips or columns of insulating material are accurately located with respect to the matrix of apertures formed in the focus mask by etching cavities which may be in the form of grooves within at least one of the plates forming the electrode structure between adjacent aperture areas, and filling such accurately positioned cavities with a dielectric frit material, and then after firing such frit material etching away the surface of the plate so as to provide raised strips or pillars of insulator material firmly bonded and embedded in the mask structure. Finally, a conductive surface film or second conductive plate is provided on the raised insulating frit material by depositing a film of conductive metallic material on the surface of the frit, such as aluminum deposited by an evaporation technique, or by bonding such second conductive plate to the surface of the insulating frit material.
    • 公开了一种用于彩色阴极射线管的聚焦阴影掩模的制造方法,其中形成电极结构的两个导电板或表面通过绝缘材料固定在一起,使得它们不彼此接触。 绝缘材料的条或列相对于在聚焦掩模中形成的孔的基体被精确地定位,其中蚀刻空腔可以是形成相邻孔径区域之间的电极结构的至少一个板内的凹槽的形式,并且填充 这种精确定位的空腔具有绝缘玻璃料材料,然后在烧制这种玻璃料材料之后蚀刻掉板的表面,以便提供牢固粘合并嵌入掩模结构中的绝缘材料的凸起的条或柱。 最后,通过在玻璃料的表面上沉积导电金属材料的膜,例如通过蒸发技术沉积的铝,或通过将这种第二导电板粘合到第二导电板上而在凸起的绝缘玻璃料材料上设置导电表面膜或第二导电板 绝缘玻璃料的表面。