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.
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申请公布号 |
US6082865(A) |
申请公布日期 |
2000.07.04 |
申请号 |
US19980120243 |
申请日期 |
1998.07.22 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
YAMAZAKI, SHUNPEI |
分类号 |
G03B21/00;G03B21/132;G03B21/28;(IPC1-7):G03B21/28 |
主分类号 |
G03B21/00 |
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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