MULTICOLOR DISPLAY FOR THE VISUAL-AESTHETIC PORTRAYAL OF ELECTRIC SIGNALS

摘要

A multicolor visual display apparatus for stereophonic sound signals is disclosed. The display apparatus includes a conventional three gun color cathode ray tube, having a screen with a plurality of colored phosphor dot triads. Stereophonic signals are coupled to a deflection yoke located on the neck of the tube for producing a pattern on the screen in sympathy with the information content of the channels. The convergence coils and purity rings normally located at the rear of the yoke on a three gun color tube neck are not used. Their absence pormits the location of the deflection yoke behind its normal position whereby electrons form any of the guns strike phosphor dots of differnet colors in different regions of the screen, producing a pleasing multicoloration of the pattern. A coil in the nature of a standard degaussing coil is activated while the pattern is displayed to further enhance this multicoloration.