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1. 发明授权

US5744270A Coded marking on an interior surfaces of a CRT faceplate panel and method of making same 失效
标题翻译： CRT面板的内表面上的编码标记及其制作方法
公开(公告)号：US5744270A
公开(公告)日：1998-04-28
申请号：US620741
申请日：1996-03-18
申请人： Samuel Pearlman , Robert Anthony Duschl , Anthony Stanley Baran , Glenn William Brunner , George Simon Gadbois , Frank Thomas DiAugustine
发明人： Samuel Pearlman , Robert Anthony Duschl , Anthony Stanley Baran , Glenn William Brunner , George Simon Gadbois , Frank Thomas DiAugustine
IPC分类号： H01J9/24 , H01J9/00 , H01J9/20 , H01J29/86 , G03B41/00 , G03C5/00
CPC分类号： H01J9/00
摘要： The novel method for producing a coded marking on a CRT faceplate panel having an exterior and an interior surface with a viewing area surrounded by a periphery and having a luminescent screen with a plurality of different light-emitting phosphors separated by light-absorbing material includes the steps of: depositing a suitable photoresist on the interior surface of the panel to form a layer that extends across the viewing area and onto the periphery; illuminating areas of the photoresist on both the viewing area and the periphery with actinic radiation to selectively change the solubility of the photoresist; developing the photoresist to remove the more soluble areas, thereby exposing underlying portions of the interior surface of the panel while leaving retained areas of less soluble photoresist. The retained areas of the photoresist and the exposed portions of the interior surface of the panel are then overcoated with a light-absorbing material which is dried to form a coating. The light-absorbing coating is developed by removing the retained areas of the photoresist having the overlying light-absorbing coating thereon, while leaving the coating of light-absorbing material adhered to the exposed portions of the interior surface of the panel. The developing step forms openings in the light-absorbing coating on the viewing area and a coded marking, including a pattern of light-absorbing material and open areas, on the periphery of the panel.
摘要翻译：在具有外周和内表面的CRT面板上制造编码标记的新颖方法，其具有由周围包围的观看区域，并且具有由光吸收材料分离的多个不同的发光荧光体的荧光屏，其包括：步骤：在所述面板的内表面上沉积合适的光致抗蚀剂，以形成跨所述观察区域延伸到所述外围的层; 用光化辐射照射观察区域和周边上的光致抗蚀剂的区域，以选择性地改变光致抗蚀剂的溶解度; 显影光致抗蚀剂以除去更多的可溶性区域，从而暴露面板内表面的下面部分，同时留下较不溶性光致抗蚀剂的保留区域。然后将光致抗蚀剂的保留区域和面板的内表面的暴露部分用吸光材料涂覆，该吸光材料被干燥以形成涂层。通过去除其上具有覆盖的光吸收涂层的光致抗蚀剂的保留区域，同时留下附着在面板的内表面的暴露部分的光吸收材料的涂层来显影光吸收涂层。显影步骤在观察区域上的光吸收涂层中形成开口，并且在面板的周边上形成包括光吸收材料图案和开放区域的编码标记。

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