发明名称 IMAGE DISPLAY DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To reduce the number of components and production cost in an image display device. <P>SOLUTION: This image display device 1 has: an LD2 modulating and emitting visual light; an optical scanning device 4 two-dimensionally scanning on a plane P with the light from the LD 2 in synchronization with the LD2; an imaging part 5 imaging an image G displayed on the plane P; and an image processing part 6 distinguishing presence/absence of an indication means such as a finger used so as to indicate an arbitrary position on the image G based on a temporal change of the image G imaged by the imaging part 5. Because the presence/absence of the image indication by the finger or the like can be distinguished even when the finger or the like of a person is used as the indication means, the number of the components can be reduced. As compared to a conventional image display device emitting invisible light, and detecting a position of an indication means according to light reception timing of the invisible light reflected by the indication means, a complicated detection circuit or the like having high time resolution is not required, so that a configuration can be simplified to reduce the production cost. <P>COPYRIGHT: (C)2009,JPO&INPIT
申请公布号 JP2009043157(A) 申请公布日期 2009.02.26
申请号 JP20070209748 申请日期 2007.08.10
申请人 PANASONIC ELECTRIC WORKS CO LTD 发明人 KONO KIYOHIKO;NOGE HIROSHI;UEDA HIDEKI
分类号 G06F3/041;G09G3/02;G09G5/00 主分类号 G06F3/041
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