| 发明名称 |
PROJECTOR |
| 摘要 |
A projector includes an alternately-current-driven light source and a liquid crystal light valve that modulates light output from the light source. The light source and the liquid crystal light valve are driven under a condition that a current drive signal of the light source and a vertical synchronizing signal of the liquid crystal light valve are synchronized, and a synchronization timing of the current drive signal and the vertical synchronizing signal is changed to a different synchronization timing based on accumulated operating time at intervals of each time or a plural times of activation or with the same synchronization timing. |
| 申请公布号 |
US2014313427(A1) |
申请公布日期 |
2014.10.23 |
| 申请号 |
US201414244216 |
申请日期 |
2014.04.03 |
| 申请人 |
SEIKO EPSON CORPORATION |
发明人 |
IIJIMA Chiyoaki;MARUYAMA Yasushi;ISHIBASHI Osamu |
| 分类号 |
H04N5/74 |
主分类号 |
H04N5/74 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A projector comprising:
an alternately-current-driven light source; and a liquid crystal light valve that modulates light output from the light source, wherein the light source and the liquid crystal light valve are driven under a condition that a current drive signal of the light source and a vertical synchronizing signal of the liquid crystal light valve are synchronized, and a synchronization timing of the current drive signal and the vertical synchronizing signal may be changed to a different synchronization timing based on accumulated operating time at intervals of each time or a plural times of activation or with the same synchronization timing. |
| 地址 |
Tokyo JP |
