High‐deflection‐sensitivity CRTs with filled yoke

Abstract

The trend towards slim CRTs requires deflection yokes (DYs) with an improved deflection sensitivity. We present a new method to improve the deflection sensitivity by 15-25% by filling the space between the ferrite core and deflection coils with a soft magnetic material. The effect was analyzed in terms of a simplified two-dimensional model. These model calculations were confirmed by three-dimensional simulations and by experiments on a DY design for the Philips 29-in. Real Flat CRT.