发明名称 Projection type image display apparatus
摘要 A compact, light projection type image display apparatus based on reflection image display devices which provide high brightness without contrast deterioration caused by light leakage associated with black image display. The apparatus uses, as polarizers/analyzers for reflection image display devices, reflection polarizing plates which function as polarizing plates by their grating function only in a specific direction. In each light path, the reflection polarizing plate is located just before/after the reflection image display device.
申请公布号 US6893131(B2) 申请公布日期 2005.05.17
申请号 US20030648788 申请日期 2003.08.27
申请人 发明人
分类号 G02B5/30;G02B27/28;G02F1/13;G02F1/1335;G03B21/00;G03B21/16;H04N9/31;(IPC1-7):G03B21/00;G03B21/14;G03B21/26;G03B21/28;G02F1/133 主分类号 G02B5/30
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