Color image display apparatus

Details Color image display apparatus Color image display apparatus

H - Electricity

01

J

375/46, 313/35.1

H01J 31/12 (2006.01) H04N 3/16 (2006.01) H04N 9/20 (2006.01)

Patent

CA 1186722

ABSTRACT OF THE DISCLOSURE A flat type color display apparatus includes a phosphor screen and 15 horizontal line cathodes activated in turn from top to bottom. An electron beam control means and a beam deflection means are provided. Each horizontal line cathode emits a horizontal sheet-shaped electron beam which is vertically deflected in 16 steps, and is divided into 320 rod-shaped electron beams by 320 vertically oblong slits and individually controlled in intensity by 320 beam-control electrodes. The rod-shaped electron beams are horizontally deflected, each impinging on the respective R, G and B vertical phosphor stripes in turn. In operation the R, G and B video signals are sampled and held in R, G and B parts of 320 sample-hold circuits, then stored simultaneously in 320 memories for the respective colors, and time sharingly applied to the respective beam-control electrodes in synchronism with the horizontal beam deflection. A color video image is thereby displayed of 240 lines each having 320 picture elements.

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