发明名称 Projector screen assembly
摘要 A projector screen assembly includes a housing, a screen, and a display mounted to the housing for displaying time, temperature, humidity, date, etc. Thus, a person may know the information of time, temperature, humidity, date, etc. without the need to bow his or her head while he or she is watching the content projected on the screen.
申请公布号 US2005185273(A1) 申请公布日期 2005.08.25
申请号 US20040787774 申请日期 2004.02.24
申请人 LEE PAO CHEN 发明人 LEE PAO CHEN
分类号 G03B21/26;G03B21/56;(IPC1-7):G03B21/26 主分类号 G03B21/26
代理机构 代理人
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