DISPLAY SYSTEM OF CATHODE-RAY TUBE THAT DOES SCANNING BEAM VELOCITY MODULATION

摘要

PURPOSE: To make the cross-section size of a scanning speed modulation coil minium. CONSTITUTION: A display system of a cathode-ray tube to carry out scanning beam speed modulation comprises a cathode-ray tube having a neck and an electron gun to generate an electron beam. A deflection yoke is installed in the cathode-ray tube and deflects the electron beam. A first flexible support body L10 having a face for the conductor assembly and a second flexible support body L20 having a face for the conductor assembly are overlapped and wound on the outer circumference of the neck. A first coil pattern P1 is formed as a conductor L1 on the first conductor assembly face and a second coil pattern P3 is formed as a conductor L3 on the second conductor assembly face. Conductive connection parts H10, H20 connect the first coil pattern P1 and the second coil pattern P3. The connector 88 couples scanning speed modulating electric current and drives the first coil pattern P1 and the second coil pattern P3 to carry out scanning beam speed modulation.