发明名称 |
Projection type cathode ray tube device |
摘要 |
A pair of magnets of which magnetizing direction differs from each other in the horizontal direction (X axis) are arranged at upper and lower portions of a funnel-side opening portion of a deflection yoke. The pair of magnets are held and fixed to a coil support body which supports horizontal deflection coils in a state where the magnets are embedded in the coil support body. In a projection type cathode ray tube of a single electron beam method, a locus of an electric beam which receives the deflection distortion is corrected so as to correct an electron beam shape on a screen to an approximately circular shape whereby a focusing performance of a display image on a screen is enhanced.
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申请公布号 |
US7015634(B2) |
申请公布日期 |
2006.03.21 |
申请号 |
US20030612460 |
申请日期 |
2003.07.02 |
申请人 |
HITACHI DISPLAYS, LTD. |
发明人 |
WATANABE SAKAE;HIROTA KATSUMI |
分类号 |
H01J29/70;H01J29/86;H01F1/00;H01J29/56;H01J29/76;H01J31/10 |
主分类号 |
H01J29/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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