中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.022 seconds)

    Color picture tube grid structure with nonuniform generally parallel slits
    1.
    发明授权
    Color picture tube grid structure with nonuniform generally parallel slits 失效
    彩色图像管网结构与非统一通用并行SLITS

    公开(公告)号：US3573528A

    公开(公告)日：1971-04-06

    申请号：US3573528D

    申请日：1969-02-12

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO

    IPC: H01J29/80 ,  H01J29/06 ,  H01J29/46 ,  H01J29/56

    CPC classification number: H01J29/803 ,  H01J2229/0761

    Abstract: A grid structure for color picture tubes adapted to decrease undesirable deviation of electrons away from the phosphor screen of a color picture tube. The slits between the grid wires are formed narrower at the upper and lower portions and wider in the central portion to increase the fundamental vibration frequency and increase the electron beam transmission factor. The latter grid structure eliminates the deleterious effects of (a) grid vibration caused by accidental impact and (b) earth magnetism.

    2.
    发明专利
    未知

    公开(公告)号：DE68924828T2

    公开(公告)日：1996-05-02

    申请号：DE68924828

    申请日：1989-03-29

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO ,  HAYASHI MASATAKE

    IPC: H01J31/15

    Abstract: A fluorescent display tube adapted to a large screen display. It has an enlarged area on which electron beams impinge, and also eliminates the effect of electric field near the glass wall of the fluorescent display tube (1) upon the electron beams, enabling the phosphor segments R, G and B to be arranged at positions close to the peripheral side wall (13) of the tube. Therefore, the light-emitting area is increased to obtain bright display. Furthermore, the distances between neighboring phosphor segments of the RGB trio on the neighboring fluorescent display tubes (1) are shortened, and the distances between the trios are shortened in each of the fluorescent display tubes (1). Therefore, the pitch is shortened as a whole in the phosphor trio arrangement in the large-screen display system, thus contributing to improving resolution.

    FLAT TYPE CATHODE-RAY TUBE
    3.
    发明专利
    FLAT TYPE CATHODE-RAY TUBE 未知

    公开(公告)号：AU572199B1

    公开(公告)日：1988-05-05

    申请号：AU3395684

    申请日：1984-03-23

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO ,  TAMURA MICHIO

    IPC: H01J29/86 ,  H01J31/12 ,  H01J29/28

    Abstract: PCT No. PCT/JP84/00131 Sec. 371 Date Nov. 21, 1984 Sec. 102(e) Date Nov. 21, 1984 PCT Filed Mar. 23, 1984 PCT Pub. No. WO84/03796 PCT Pub. Date Sep. 27, 1984.The present invention relates to a cathode ray tube suitable for use with a flat type cathode ray tube in which a material from which a secondary electron is emitted by the impingement of an electron beam is exposed on a surface of an area of a first panel portion (2) having on its inner surface formed a phosphor screen on which the electron beam from an electron gun impinges and an insulative material which forms a second panel portion (3) is exposed on an inner surface of the second panel portion (3) opposing the first panel portion (2) wherein the secondary electron is accumulated to present a predetermined high potential state so that an electric field is prevented from being disturbed in a path of the electron beam.

    10.
    发明专利
    未知

    公开(公告)号：DE68924828D1

    公开(公告)日：1995-12-21

    申请号：DE68924828

    申请日：1989-03-29

    Applicant: SONY CORP

    Inventor： MAEDA MAKOTO ,  HAYASHI MASATAKE

    IPC: H01J31/15

    Abstract: A fluorescent display tube adapted to a large screen display. It has an enlarged area on which electron beams impinge, and also eliminates the effect of electric field near the glass wall of the fluorescent display tube (1) upon the electron beams, enabling the phosphor segments R, G and B to be arranged at positions close to the peripheral side wall (13) of the tube. Therefore, the light-emitting area is increased to obtain bright display. Furthermore, the distances between neighboring phosphor segments of the RGB trio on the neighboring fluorescent display tubes (1) are shortened, and the distances between the trios are shortened in each of the fluorescent display tubes (1). Therefore, the pitch is shortened as a whole in the phosphor trio arrangement in the large-screen display system, thus contributing to improving resolution.

Patent Agency Ranking