A CRT display including a horizontal deflection circuit. The horizontal deflection coil supplied with a horizontal deflection signal, with inductance L, has an energy-dissipating coil resistance connected in series and hence a second-order distortion expanding the left-hand side of the picture screen of the display and contracting the right-hand side thereof is produced. In the preset invention, to correct for the second-order distortion, the current flowing through the deflection coil means is detected, the deflection distortion component is extracted from the current, and a deflection distortion correcting current corresponding to the deflection distortion is supplied to an auxiliary coil for correcting the horizontal deflection of the electron beam.