| 发明名称 |
Projection type display device with image pickup function and communication system |
| 摘要 |
A projection type display device including an image pickup device is provided. A projection mirror of an OHP is made a half mirror 108, so that a picture having transmitted through the half mirror can be taken in by an image sensor 102.
|
| 申请公布号 |
US6533423(B1) |
申请公布日期 |
2003.03.18 |
| 申请号 |
US20000590135 |
申请日期 |
2000.06.09 |
| 申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
YAMAZAKI SHUNPEI |
| 分类号 |
G03B21/00;G03B21/132;G03B21/28;(IPC1-7):G03B21/14 |
主分类号 |
G03B21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
