发明授权
US08390586B2 Image display apparatus that detects pointing element using imaging device
失效
使用成像装置检测指向元件的图像显示装置
- 专利标题: Image display apparatus that detects pointing element using imaging device
- 专利标题(中): 使用成像装置检测指向元件的图像显示装置
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申请号: US12702595申请日: 2010-02-09
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公开(公告)号: US08390586B2公开(公告)日: 2013-03-05
- 发明人: Kiyohiko Kawano , Hiroshi Noge , Hideki Ueda
- 申请人: Kiyohiko Kawano , Hiroshi Noge , Hideki Ueda
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Greenblum & Bernstein, P.L.C.
- 优先权: JP2007-209748 20070810
- 主分类号: G06F3/041
- IPC分类号: G06F3/041 ; G06F3/042
摘要:
An image display apparatus includes an LD for emitting and modulating visible light, an optical scanning device for two-dimensionally scanning the light from the Ld on a screen in synchronism with the LD, an imaging device for picturizing an image of the image displayed on the screen, and an image processor for judging presence or absence of the pointing element such as a finger or fingers which is/are used to point out an optional position on the image based on temporal change of the image picturized by the imaging device. Even when the finger or fingers of a person is/are used as the pointing element, it is possible to judge the presence or absence of the pointing out of the image by the finger or fingers. Thereby, a number of components can be reduced. In addition, in comparison with an image display apparatus that emits invisible light detects a position of a pointing element corresponding to a photoreception timing of the invisible light reflected by the pointing element, a complex detection circuit having a high time-resolution becomes unnecessary, and it enables to simplify the configuration and to reduce manufacturing cost.
公开/授权文献
- US20100141897A1 IMAGE DISPLAY DEVICE 公开/授权日:2010-06-10