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    Apparatus and method of manufacturing color picture tubes
    1.
    发明授权
    Apparatus and method of manufacturing color picture tubes 失效
    彩色显象管制造装置及方法

    公开(公告)号：US3906515A

    公开(公告)日：1975-09-16

    申请号：US26435672

    申请日：1972-06-19

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： HOSOKOSHI KAKUICHIRO ,  YOSHIDA OSAMU

    IPC: H01J9/227 ,  G03B41/00

    CPC classification number: H01J9/2272

    Abstract: This invention concerns an improvement in manufacturing of color picture tubes wherein photosensitive slurry is applied on the inner surface of a face panel of the tube and dried to form a dried slurry, then a shadow mask is secured to the face panel with a specified gap in between, and ultraviolet rays impinge on the dried slurry layer through a path-refracting lens and apertures of said shadow mask so as to form dots on the inner surface. The improvement lies in provision of a light attenuator to control exposure distribution of the ultraviolet rays closely beneath the shadow mask. With this arrangement, sizes of the dots in the edge part of a screen can be made almost equal irrespective of changes of position of the ultraviolet ray source. Consequently, the dots for the three colors in the edge portion of the screen can be made substantially equal in size, and good color balance throughout the picture screen is obtainable.

    Abstract translation: 本发明涉及彩色显像管制造方面的改进，其中将感光浆料施加在管的面板的内表面上并干燥以形成干燥的浆料，然后将荫罩以特定的间隙固定在面板上 紫外线通过路径折射透镜和所述荫罩的孔径撞击在干燥的浆料层上，从而在内表面上形成点。

    Fluorescent film for color picture tube and process of preparing same
    2.
    发明授权
    Fluorescent film for color picture tube and process of preparing same 失效
    彩色显像管荧光膜及其制备方法

    公开(公告)号：US3887753A

    公开(公告)日：1975-06-03

    申请号：US37409973

    申请日：1973-06-27

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： NINAGAWA CHIKAYOSHI ,  YOSHIDA OSAMU ,  ASHIZAKI SHIGEYA

    IPC: H01J9/227 ,  H01J29/22 ,  B44D5/00 ,  G03C5/02

    CPC classification number: H01J9/2271 ,  H01J29/225 ,  Y10T428/256

    Abstract: Phosphor particles coated with a mixture of GeO2 and SiO2 or a mixture of WO3 and SiO2 are dispersed in an aqueous solution of a photosensitive resin together with a protective dispersing agent for the particles in the solution to form a slurry. Y2O3 :Eu phosphor particles with the coating are chemically stable and do not hydrolize in the slurry. The slurry is then applied to the inner surface of a glass tube. The resulting phosphor film is dried, printed and developed by the photographic technique to form a desired pattern of the phosphor material. By the invention manufacturing a bright color picture tube employing Y2O3:Eu phosphor becomes possible in commercial success.

    Abstract translation: 将涂覆有GeO 2和SiO 2或WO 3和SiO 2的混合物的荧光体颗粒与用于溶液中的颗粒的保护性分散剂一起分散在感光性树脂的水溶液中以形成浆料。 具有涂层的Y 2 O 3：Eu荧光体颗粒是化学稳定的，并且在浆液中不水解。 然后将浆料施加到玻璃管的内表面。 通过照相技术将所得的荧光膜干燥，印刷和显影，以形成所需的荧光体材料图案。 通过本发明，制造使用Y 2 O 3：Eu荧光粉的明亮彩色显像管成为商业上成功的可能。

    APPARATUS AND METHOD OF MANUFACTURING COLOR PICTURE TUBES
    3.
    发明专利
    APPARATUS AND METHOD OF MANUFACTURING COLOR PICTURE TUBES 未知

    公开(公告)号：CA976402A

    公开(公告)日：1975-10-21

    申请号：CA144919

    申请日：1972-06-16

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： HOSOKOSHI KAKUICHIRO ,  YOSHIDA OSAMU

    IPC: H01J9/227

    Abstract: This invention concerns an improvement in manufacturing of color picture tubes wherein photosensitive slurry is applied on the inner surface of a face panel of the tube and dried to form a dried slurry, then a shadow mask is secured to the face panel with a specified gap in between, and ultraviolet rays impinge on the dried slurry layer through a path-refracting lens and apertures of said shadow mask so as to form dots on the inner surface.

    5.
    发明专利
    未知

    公开(公告)号：DE1238110B

    公开(公告)日：1967-04-06

    申请号：DEM0062253

    申请日：1964-08-28

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： YOSHIDA OSAMU ,  ASHIZAKI SHIGEYA ,  KANAME MASAHARU

    IPC: H01J29/74 ,  H01J29/82

    Abstract: 1,073,240. Cathode-ray tubes. MATSUSHITA ELECTRONICS CORPORATION. Aug. 31, 1964 [Aug. 31, 1963], No. 35546/64. Heading H1D. A method of manufacturing a cathode-ray tube with electrostatic deflection comprises providing at least one metal plate 2, 4, laterally in front of each set of the deflection plates 3, 5, the metal of plates 2, 4, after exhaustion of the tube being evaporation-deposited on the inner surfaces of the deflection plates 3, 5 for forming a metal layer thereon. Plates 2, 4 are of nickel and are heated by high-frequency induction currents. The process is said to overcome the undesired effects of impurities in the metal of the deflection plates.

    COLOR PICTURE TUBE
    10.
    发明专利
    COLOR PICTURE TUBE 失效

    公开(公告)号：JPS551033A

    公开(公告)日：1980-01-07

    申请号：JP7447378

    申请日：1978-06-19

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： SHIYOUDA MUTSUO ,  YOSHIDA OSAMU ,  OONISHI KEIZOU

    IPC: C09K11/08 ,  C03C17/22 ,  H01J29/20 ,  H01J29/32

    Abstract: PURPOSE:To lower the minimum picture frequency of picture tube, with an afterglow of fluorescent screen prolonged, without lowering a luminace, by applying a Pb addition silicate ultra-violet ray radiating phosphor. CONSTITUTION:With a red color phosphor of Y2O2S:Eu, green color phosphor of ZnS:CuAl and blue color phosphor of ZnS:Ag of average particle diameter about 5 to 6mu, is mixed a Pb addition barium strontium silicate ultra-violet ray radiating phosphor, with an application separately made into blue, green, red color phosphor dot or stripe by methods of slurry, followed by a necessary process of metal back with a picture tube constructed. In this way, afterglow of the fluorescent screen can be widely lengthened, without a wide change of luminous color tone, thus a picture with no flickering can be obtained.

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