发明名称 DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a display device employing a cathode ray tube that can sufficiently suppress color smear and realize remarkably high image quality. SOLUTION: The display device comprises a cathode ray tube having a color selection electrode 20 that is fixed to a frame 21 with a tension provided thereto and having an internal magnetic shield 12 that magnetically shields an electron beam, and of a degaussing coil 16 placed to a funnel 14 of the cathode ray tube. The degaussing coil 16 consists of a couple of 1st and 2nd degaussing coils 16a, 16b placed vertically, and the 1st and 2nd degaussing coils have parallel pars 16a-1, 16b-1 extended nearly in parallel with upper and lower sides of the color selection electrode and have roundabout parts 16a-2, 3, 16b-2, 3 going around from both ends of the parallel parts toward an inner side face of ridges of the funnel.
申请公布号 JP2001238225(A) 申请公布日期 2001.08.31
申请号 JP20000045851 申请日期 2000.02.23
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 FUSAYASU KOJI;INOUE HIROTO;TAKAURA KANEYOSHI;UCHIDA SHIGEHISA
分类号 H04N9/29;(IPC1-7):H04N9/29 主分类号 H04N9/29
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