公开(公告)号：US20030122469A1

公开(公告)日：2003-07-03

申请号：US10324363

申请日：2002-12-19

申请人： Matsushita Electric Industrial Co., Ltd.

发明人： Shigeo Nakatera ,  Takayuki Yonezawa ,  Tomohisa Mikami ,  Tetsuro Ozawa

IPC分类号： H01J029/06 ,  H01J029/80

CPC分类号： H01J29/06 ,  H01J2229/003 ,  H01J2229/0053

摘要： A color cathode ray tube having a striped phosphor screen is provided, in which color displacements due to the tube axis (Z-axis) component of the terrestrial magnetism can be decreased at low cost. A positive temperature coefficient thermistor and a degaussing coil are connected in series to an AC power source (AC 100V) via a switch. A rectifier/smoothing circuit is provided in parallel to the positive temperature coefficient thermistor. When the switch is turned on, an ordinary degaussing process due to the AC attenuating magnetic field interlinked to the degaussing coil is performed, and the DC magnetic field in the Y-axis direction interlinked to the degaussing coil decreases the influence of the terrestrial magnetism in the tube axis direction (Z-axis direction).

摘要翻译： 提供了具有条状荧光屏的彩色阴极射线管，其中可以以低成本降低由于地磁的管轴（Z轴）分量引起的颜色位移。 正温度系数热敏电阻和消磁线圈经由开关串联连接到AC电源（AC 100V）。 提供与正温度系数热敏电阻并联的整流/平滑电路。 当开关导通时，由于与消磁线圈相互连接的交流衰减磁场进行普通的消磁处理，并且与消磁线圈相互连接的Y轴方向的直流磁场减小了地磁的影响 管轴方向（Z轴方向）。