发明名称 |
Apparatus for eliminating moire pattern effects resulting from the use of different display resolution with a fixed size shadow mask |
摘要 |
In a vertical deflection circuit of a display monitor including a vertical deflection coil 41 and a sigmoid correction capacitor 42 connected to the vertical deflection coil 41, a series connection circuit consisting of a resistor 21 and a switch 22 connected in series with each other is connected in parallel with the sigmoid correction capacitor 42. By turning the switch 22 on and off in response to a control signal having a period twice as long as a period of the vertical synchronizing signal, a current flowing through the resistor 21 and the switch 22 is periodically added to a vertical deflection current, thereby causing shift of displaying points on a screen to make the moire phenomenon unnoticeable.
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申请公布号 |
US5430502(A) |
申请公布日期 |
1995.07.04 |
申请号 |
US19930022035 |
申请日期 |
1993.02.24 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
YAMAZAKI, MASAO;KITAMURA, TSUTOMU |
分类号 |
G09G1/04;H04N3/227;(IPC1-7):H04N5/21;H04N3/16 |
主分类号 |
G09G1/04 |
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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