COLOR TELEVISION PICTURE TUBE WITH COLOR-SELECTION STRUCTURE AND METHOD

    公开(公告)号:KR840001697B1

    公开(公告)日:1984-10-15

    申请号:KR800004419

    申请日:1980-11-18

    Applicant: RCA CORP

    Abstract: In a three in-line beam, phosphor stripe, post-deglext-ion focussing color tube, the shadow mask comprises a plate (41) defining an array of apertures(43), together with conductor (45) insulatedly soaced from it and forming a pair of windows in each aperture. The tube is operated with the conductors (45) held at a negative potential relatively to the plate (41), so that pairs of beam (53A, 53B, 51A, 51B, 55A, 55B) transmitted through windows in adjacent apertures (43) are deflected towards one another to excite the same phosphor stripe and, also, are focussed (compressed) in the narrow width direction of the phosphor stripes.

    3.
    发明专利
    未知

    公开(公告)号:DE2736916A1

    公开(公告)日:1978-02-23

    申请号:DE2736916

    申请日:1977-08-16

    Applicant: RCA CORP

    Abstract: An electron multiplier includes a plurality of staggered parallel dynodes. The dynodes include spaced confinement bumps along their lengths with active areas between the bumps. The confinement bumps and active areas therebetween define a plurality of channels which extend from a cathode at one end of the multiplier. Each channel traverses the staggered parallel dynodes and causes an electron beam to pass therethrough without spreading. The multiplier is useful in a display device which includes a plurality of line sources of electrons, e.g., a plurality of cathode stripes.

    4.
    发明专利
    未知

    公开(公告)号:FR2505088A1

    公开(公告)日:1982-11-05

    申请号:FR8207316

    申请日:1982-04-28

    Applicant: RCA CORP

    Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

    5.
    发明专利
    未知

    公开(公告)号:DE3123910A1

    公开(公告)日:1982-03-18

    申请号:DE3123910

    申请日:1981-06-16

    Applicant: RCA CORP

    Abstract: CRT comprises a color-selection structure for producing a plurality of quadrupolar lenses, each lens defining a window for passing and focusing portions of electron beams to an associated color group of a target. The color-selection structure comprises (i) a metal masking plate having therein an array of substantially rectangular windows, each window having associated therewith (ii) a pair of first conductors insulatingly spaced from one major surface of the plate and located adjacent opposite sides of the aperture and (iii) a pair of second conductors insulatingly spaced from the other major surface of the plate and located adjacent opposte sides of the window. The CRT includes means for applying a voltage to said plate, means for applying a voltage to said pairs of first conductors and means for applying a voltage to said pairs of second conductors.

    6.
    发明专利
    未知

    公开(公告)号:DE3043940A1

    公开(公告)日:1981-09-17

    申请号:DE3043940

    申请日:1980-11-21

    Applicant: RCA CORP

    Abstract: CPT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. When the CPT is operated, pairs of beamlets transmitted through windows in adjacent apertures in the masking structure are deflected towards one another to excite the same phosphor stripe and, also, are focused (compressed) in the narrow width direction of the phosphor stripes and defocused (stretched) in the length direction of the phosphor stripes.

    7.
    发明专利
    未知

    公开(公告)号:IT8122192D0

    公开(公告)日:1981-06-08

    申请号:IT2219281

    申请日:1981-06-08

    Applicant: RCA CORP

    Abstract: A CRT comprises a deflection-and-focus color-selection masking structure, a screen of parallel phosphor stripes, and means for producing three convergent in-line electron beams directed towards the target. The masking structure comprises a metal masking plate having two major surfaces and having therein an array of apertures arranged in columns that are substantially parallel to the phosphor stripes. Arrays of narrow conductors are insulatingly supported in opposed positions on each major surface of said plate. The conductors extend substantially parallel to the stripes and are located in every other space between the columns.

    9.
    发明专利
    未知

    公开(公告)号:IT1151363B

    公开(公告)日:1986-12-17

    申请号:IT2036982

    申请日:1982-03-24

    Applicant: RCA CORP

    Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

    10.
    发明专利
    未知

    公开(公告)号:FR2505088B1

    公开(公告)日:1986-04-25

    申请号:FR8207316

    申请日:1982-04-28

    Applicant: RCA CORP

    Abstract: An electron gun for use in a cathode ray tube includes beam forming electrodes and beam focusing electrodes. A gun improvement comprises the beam forming electrodes including a cathode, a control grid adjacent to the cathode and two screen grids. A first screen grid is located adjacent to the control grid. A second screen grid is located between the first screen grid and the beam focusing electrodes. Preferably, the second screen grid and the control grid are grounded.

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