GB1208002A - Apparatus for producing a colour television display - Google Patents

Apparatus for producing a colour television display

Info

Publication number
GB1208002A
GB1208002A GB41791/67A GB4179167A GB1208002A GB 1208002 A GB1208002 A GB 1208002A GB 41791/67 A GB41791/67 A GB 41791/67A GB 4179167 A GB4179167 A GB 4179167A GB 1208002 A GB1208002 A GB 1208002A
Authority
GB
United Kingdom
Prior art keywords
wires
grid
potential
beams
mean
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB41791/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of GB1208002A publication Critical patent/GB1208002A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/16—Picture reproducers using cathode ray tubes
    • H04N9/22—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information
    • H04N9/26—Picture reproducers using cathode ray tubes using the same beam for more than one primary colour information using electron-optical colour selection means, e.g. line grid, deflection means in or near the gun or near the phosphor screen
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
    • H01J29/80—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching
    • H01J29/803—Arrangements for controlling the ray or beam after passing the main deflection system, e.g. for post-acceleration or post-concentration, for colour switching for post-acceleration or post-deflection, e.g. for colour switching

Abstract

1,208,002. Colour television tubes. SONY CORP. 13 Sept., 1967 [17 Sept., 1966], No. 41791/67. Heading HID. In a colour television tube employing a parallax grid, the grid comprises two sets of wires at different potentials, the mean of which is the anode potential, so that it also operates to focus the beam or beams on to the phosphor strips. In Fig. 4B the grid comprising two sets of wires 1a and 1b is disposed parallel to the fluorescent screen with the wires parallel to the colour stripes R, G, and B. A potential difference V F is maintained between the two sets of wires, and the mean potential of the grid is equal to the potential V a of the fluorescent screen. The screen is scanned by three beams, which may originate from three electron guns or from a single gun, and as shown the beams R o , G o and B o are focused only on the corresponding stripes R, G and B. In a modified arrangement, Figs. 5 and 6 (not shown), three grid wires are provided for each set of three stripes, two of the wires being connected together, and the potentiometer 7 is arranged to supply + 2/3 V F to one set of wires - 1/3 Vp to the other set so that the mean is still zero.
GB41791/67A 1966-09-17 1967-09-13 Apparatus for producing a colour television display Expired GB1208002A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6134166 1966-09-17
JP6134066 1966-09-17

Publications (1)

Publication Number Publication Date
GB1208002A true GB1208002A (en) 1970-10-07

Family

ID=26402382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41791/67A Expired GB1208002A (en) 1966-09-17 1967-09-13 Apparatus for producing a colour television display

Country Status (3)

Country Link
US (1) US3452242A (en)
DE (1) DE1537375A1 (en)
GB (1) GB1208002A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181319A (en) * 1985-10-04 1987-04-15 Philips Electronic Associated Colour display apparatus
US5111106A (en) * 1989-04-12 1992-05-05 Zenith Electronics Corporation Post-mask-deflection type tension mask color cathode ray tube

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446791A (en) * 1946-06-11 1948-08-10 Rca Corp Color television tube
US2723361A (en) * 1952-01-02 1955-11-08 Du Mont Allen B Lab Inc Cathode ray tube
US2878411A (en) * 1955-03-21 1959-03-17 Chromatic Television Lab Inc Color television display screen
US3290435A (en) * 1962-10-13 1966-12-06 Sony Corp Color television reproducing system

Also Published As

Publication number Publication date
US3452242A (en) 1969-06-24
DE1537375A1 (en) 1969-10-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee