中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

191 records (took 0.029 seconds)

    DRIVE CIRCUIT FOR FLAT C.R.T. COLOUR DISPLAY APPARATUS
    71.
    发明专利
    DRIVE CIRCUIT FOR FLAT C.R.T. COLOUR DISPLAY APPARATUS 未知

    公开(公告)号：AU7521981A

    公开(公告)日：1982-03-18

    申请号：AU7521981

    申请日：1981-09-14

    Applicant: SONY CORP

    Inventor： SHIMADA SATOSHI

    IPC: H04N9/22 ,  H01J31/12 ,  H04N5/68 ,  H04N9/12 ,  H04N3/22 ,  H04N5/48 ,  H04N9/18

    Abstract: An image display apparatus includes a phosphor screen which is divided into a plurality of phosphor screen portions arranged in both horizontal and vertical directions, a set of an electron gun and horizontal and vertical deflection devices provided in opposed relation to each of the divided phosphor screen portions, the electron gun being formed integrally of a common metal plate at plural divided phosphor screen portions at least adjacent in both horizontal and vertical directions, a circuit for driving the deflecting devices at the same time over all the surface of the phosphor screen, a circuit for the vertical deflection device at a horizontal period in a step, a device for memorizing at least one period of a video signal, and a circuit for dividing the video signal in accordance with the division in the horizontal direction, reading out divided video signals separately and simultaneously and supplying read-out video signals to the electron guns arranged on one line in the horizontal direction, wherein the phosphor screen is formed of red, green and blue color phosphor stripes and a black guard band, which are repeated arranged with a predetermined pitch, the guard band being located at a position coincident with the divided position of the phosphor screen in the horizontal direction.

    Colour Cathode Ray Tube
    75.
    发明专利
    Colour Cathode Ray Tube 未知

    公开(公告)号：GB1175698A

    公开(公告)日：1969-12-23

    申请号：GB5773966

    申请日：1966-12-23

    Applicant: SONY CORP

    Inventor： SHIMADA SATOSHI

    IPC: H01J29/74 ,  H01J31/20 ,  H04N9/22 ,  H04N9/26

    Abstract: 1,175,698. Colour television tubes. SONY CORP. 23 Dec., 1966 [27 Dec., 1965 (2)], No. 57739/66. Heading H1D. [Also in Division H4] In a single beam colour television tube having a colour selection grid disposed adjacent the screen, the electron beam is cycled over the different colour phosphor strips by electrostatic deflection produced by two axially spaced pairs of opposed electrodes mounted on the outside of the neck of the tube, the inner surface of the tube being coated with corresponding high resistance layers which extend one opposite each electrode and which are A.C. coupled to earth; a composite A.C. voltage constituted by the sum of two frequencies, one a multiple of the other, and the waveform of one cycle of which exhibits a plutality of peaks, is applied both to the first pair of electrodes and, with reverse sense, to the second pair of electrodes, to cause successive deflections of the electron beam in opposite directions, such that for each signal peak the beam approaches the colour selection grid from a different direction and impinges upon a corresponding one of the sets of different colour strips. Two pairs of electrodes 9a, 9b and 10a, 10b which are coated on the outside of the tube neck are separated by insulant from a surrounding shield plate 24, and may extend beneath the magnetic deflection coils 14. High resistance layers 20 are coated on the inside of the tube beneath each electrode, the conductive layer 19 which is coated on the inside of the cone, and is held at a high potential, extending to the gun 4 along the gap 22, Fig. 3, between the high resistance layers 20, and also into the annular zone 23 between those layers. The screen 16 is coated with phosphor strips RGB and has an adjacent colour selection grid 17 composed of wires 17a disposed opposite the GB demarcation lines. The gun 4 is supplied with a high-frequency luminance signal Yh together with a chrominance signal C 8 from amplifier 6, and with a low frequency luminance signal YL from amplifier 5. Signal C s is also fed to a colour burst separator 7 which also receives the horizontal deflection signal from circuit 8. The output from circuit 7 is fed to a colour switching signal generator 15 which supplies a sinusoidal signal of frequency # s to key-out signal generator 12, which superimposes a 3# s key-out signal upon the signal Y L applied to the gun 4. The signal # s is also applied to electrodes 9b and 10a, and to a multiplier 11 which provides a signal 2# s to electrodes 9a and 10b, whereby the sum of # s and 2# s signals-forming the colour switching signal 31, Fig. 5-appears, with opposite senses, across the electrode pairs 9a, 9b and 10a, 10b. The electron beam is arranged to strike the red phosphor strips for the zero value 3IR of the signal 31, and, by successive oppositely directed deflection by the electrode pairs 9a, 9b and 10a, 10b, to strike the blue strips at the positive signal peak, and the green at the negative peak. The arrangement is stated to be applicable both to line sequential and to dot sequential systems.

    76.
    发明专利
    未知

    公开(公告)号：DE1564575A1

    公开(公告)日：1969-10-02

    申请号：DE1564575

    申请日：1966-04-25

    Applicant: SONY CORP

    Inventor： SHIMADA SATOSHI ,  OHKOSHI AKIO ,  MIYAOKA SENRI

    IPC: H01J29/48 ,  H01J29/56

    Abstract: 1,149,345. Electron guns. SONY CORP. 25 April, 1966 [26 April, 1965], No. 17911/66. Heading H1D. An electron gun, especially for a colour television tube of the " Chromatron " (Registered Trade Mark) type, comprises a tetrode system in which the aperture of the accelerating electrode G2 has a diameter d 2 at least twice, and preferably four times, the diameter d 1 of the aperture of the control grid G 1 . The main convergence system is a unipotential lens G 3 , G 4 , G 5 and both the accelerator electrode G 2 and focusing electrode G 4 are grounded to serve as conductors for spurious discharges. The diameters d 3 , d 3 1 of the apertures of first high voltage electrode G 3 are about twice the diameter d 1 and the diameter d 5 of the aperture of the second high voltage electrode G 5 is about three times d 1 . Specific dimensions are given. A pre-focusing convex lens is produced between accelerator electrode G 2 and first high voltage electrode G 3 and a concave lens in the vicinity of the aperture h 3 , the overall effect of the two lenses being weakly convex to assist prefocusing and to reduce spherical aberration.

    78.
    发明专利
    未知

    公开(公告)号：DE1437292A1

    公开(公告)日：1969-01-02

    申请号：DE1437292

    申请日：1963-10-11

    Applicant: SONY CORP

    Inventor： SHIMADA SATOSHI

    IPC: H04N9/26

    Abstract: 1,056,437. Colour television receivers. SONY CORPORATION. Oct. 11, 1963 [Oct. 13, 1962], No. 40214/63. Heading H4F. The invention relates to a colour television receiver, Fig. 5, which utilizes a chromatron cathode-ray tube 6, a received N.T.S.C. signal comprising a luminance component Y and a chrominance sub-carrier component Cs being applied to the tube gun 5 to modulate the beam intensity whilst a sinusoidal potential S at the sub-carrier frequency is applied between the switching grids 4a, 4b. Operation proceeds as shown in Fig. 4 with the beam deflected cyclically over the red, green and blue phosphor strips 3R, 3G and 3B so as to reproduce the colours at the places marked by a O in phase with their representation by the chrominance signal Cs. With the object of improving the accuracy of colour reproduction a further signal P at three times the sub-carrier frequency is also applied to the tube gun so as to reduce the beam intensity at the places marked by an X. In accordance with the invention the amplitude of signal P is modulated in accordance with the amplitude of the sub-carrier signal except at low amplitudes. In carrying out the invention the signal P, which is derived by means of a frequency multiplier 14 from a signal of subcarrier frequency obtained from an oscillator 12 synchronized by the sub-carrier " bursts," is applied to the tube gun 5 via an amplitude modulator 15 which is controlled by the output of a detector circuit 16 responsive to the chrominance signal Cs. Furthermore the detector incorporates a bias source 20 which prevents the detector producing an output from lowamplitude (i.e. low saturation) sub-carrier signals. In practice stages 14 and 15 are combined into a single stage comprising a non-linear amplifier with a resonant anode circuit tuned to three times sub-carrier frequency. Fig. 7 shows one arrangement based on the use of a triode 26. A second circuit, Fig. 8 (not shown), uses a pentode.

Patent Agency Ranking