Color image display tube apparatus

Details Color image display tube apparatus Color image display tube apparatus

1987-12-16

1989-07-18

Tarcza, Thomas H.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2970

Patent

active

048496766

ABSTRACT:
Of three electron beams produced by an in-line type color cathode ray tube having a deflection device for producing uniform vertical and horizontal deflection fields, two beams are driven by G and B image signals that are delayed by CCDs in accordance with beam deflection positions on a fluorescent screen, so as to converge with the remaining one electron beam. A horizontal sync signal is also delayed by a CCD to remove a grid image deformation in accordance with the beam deflection positions. The amount of this delay is attained by reading out delay data stored in advance in a memory and supplying the delay data to a counter which are driven by horizontal and vertical deflection signals. An address decorder is provided to decode the contents of the counter to access the memory.

REFERENCES:
patent: 4401922 (1983-08-01), Kamata et al.
patent: 4500816 (1985-02-01), Murphy
patent: 4620136 (1986-10-01), Bolger
patent: 4672275 (1987-06-01), Ando
patent: 4673847 (1987-06-01), Louie et al.
patent: 4680510 (1987-07-01), Spieth et al.
patent: 4687973 (1987-08-01), Holmes et al.
Patent Abstracts of Japan, vol. 6, No. 254 (E-148) [1132], Dec. 14, 1982; & JP-A-57 152 288 (Hitachi Seisakusho K.K.) 02-09-1982.

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