发明名称 |
DISPLAY DEVICE, ITS DRIVING METHOD AND PROJECTION TYPE DISPLAY DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To eliminate longitudinal lines on a display screen caused by the fact that charging and discharging noise generated by the switching of a sampling switch is sampled when sampling pulses are overlapped in front and back stages. SOLUTION: In a clock driving type horizontal driving circuit 17 of an active matrix type display device of a point sequential driving system, a clock generating circuit 18 generates clocks DCK and DCKX having the same period with respect to horizontal clocks HCK and HCKX and a small duty ratio. The clocks DCK and DCKX are sampled by switches 22-1 to 22-4 of a clock sampling switch group 22. Then, switches 23-1 to 23-4 of a sampling switch group 23 are driven by employing the sampled clocks DCK and DCKX as sampling pulses Vh1 to Vh4 and video signals 'video' are sampled in a perfect nonoverlapped sample condition.
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申请公布号 |
JP2002072987(A) |
申请公布日期 |
2002.03.12 |
申请号 |
JP20010109460 |
申请日期 |
2001.04.09 |
申请人 |
SONY CORP |
发明人 |
KAJIMA TAKEYASU;UCHINO KATSUHIDE;YAMASHITA JUNICHI |
分类号 |
G03B33/12;G02F1/133;G03B21/00;G09G3/20;G09G3/36;H04N5/66;(IPC1-7):G09G3/36 |
主分类号 |
G03B33/12 |
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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