Fluorescent screens of color picture tubes and manufacturing method
therefor
    1.
    发明授权
    Fluorescent screens of color picture tubes and manufacturing method therefor 失效
    彩色显像管荧光屏及其制造方法

    公开(公告)号:US4855200A

    公开(公告)日:1989-08-08

    申请号:US142360

    申请日:1987-12-28

    IPC分类号: H01J9/227 H01J29/28

    CPC分类号: H01J9/2278 H01J29/28

    摘要: A high contrast and brightness fluorescent screen of a color picture tube has a light absorbing layer in the form of fine dots or stripes provided for the inner surface of a panel of the tube on which the phosphor layer is formed, and a light reflection layer provided at an interface between the light absorbing layer and the phosphor layer. To manufacture the fluorescent screen, a photosensitive resin layer coated on an inner surface of the panel is exposed to light through a photomask mounted on outside of the panel to form a pattern. Nonluminous light absorbing substance is applied on the pattern to form the light absorbing layers.

    摘要翻译: 彩色图像的高对比度和亮度荧光屏具有设置在其上形成荧光体层的管的面板的内表面的细小点或条纹形式的光吸收层,以及设置在其上的光反射层 光吸收层和荧光体层之间的界面。 为了制造荧光屏,涂覆在面板内表面上的感光树脂层通过安装在面板外部的光掩模曝光以形成图案。 在图案上涂布非光吸收物质,形成光吸收层。

    Formation of pattern using acrylamide-diacetoneacrylamide copolymer
    7.
    发明授权
    Formation of pattern using acrylamide-diacetoneacrylamide copolymer 失效
    使用丙烯酰胺 - 双丙酮丙烯酰胺共聚物形成图案

    公开(公告)号:US4086090A

    公开(公告)日:1978-04-25

    申请号:US615529

    申请日:1975-09-22

    摘要: The present invention affords a process for forming a pattern having a surface area substantially equal to or smaller than area of apertures of shadow-mask through which beams pass on a photoresist film, which contains an acrylamidediacetoneacrylamide copolymer and a water-soluble aromatic bisazide compound, by exposing said photoresist film to light through a mask having the pattern and then developing the film.The use of said photoresist film for the preparation of a phosphor screen of a color picture tube of a black matrix or black stripe type does not require a special technique such as post-etching of a shadow mask and makes it possible to form a three primary color phosphor pattern having a surface area substantially equal to or smaller than the area of apertures of the shadow mask through which lightbeams pass, without mutual "bridging" between phosphor dots. Thus, an excellent phosphor screen of a color picture tube of a black matrix or black stripe type can be prepared.

    摘要翻译: 本发明提供了一种形成图案的方法,该图案的表面积基本上等于或小于荫罩的孔径的面积,光束通过光致抗蚀剂膜,该光致抗蚀剂膜含有丙烯酰胺丙酮丙烯酰胺共聚物和水溶性芳族双叠氮化合物, 通过使具有该图案的掩模将所述光致抗蚀剂膜曝光,然后显影该膜。

    Process of forming powder pattern using positive diazonium salt
photoresist
    9.
    发明授权
    Process of forming powder pattern using positive diazonium salt photoresist 失效
    使用正重氮盐光致抗蚀剂形成粉末图案的工艺

    公开(公告)号:US4537851A

    公开(公告)日:1985-08-27

    申请号:US531266

    申请日:1983-09-12

    CPC分类号: G03F7/28 G03F7/016

    摘要: A water-soluble, positive-working photoresist composition is disclosed which comprises water-soluble aromatic diazonium salt, water-soluble phenolic compound, and water-soluble polymeric compound. When the film of this composition is irradiated with a pattern of actinic ray and then brought into contact with an alkaline gas or solution, the coating of unexposed areas hardens to become water-insoluble. Preferably, when the film is brought into contact with a suspension of powder or dry powder after being hardened, a positive pattern of powder is obtained by the development with water.

    摘要翻译: 公开了一种水溶性正性光致抗蚀剂组合物,其包含水溶性芳族重氮盐,水溶性酚类化合物和水溶性聚合物。 当将该组合物的膜用光化射线图案照射,然后与碱性气体或溶液接触时,未曝光区域的涂层变硬,变得不溶于水。 优选地,当硬化后将膜与粉末或干粉末的悬浮液接触时,通过用水显影获得阳性图案的粉末。