发明授权
- 专利标题: Image display apparatus
- 专利标题(中): 图像显示装置
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申请号: US11275174申请日: 2005-12-16
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公开(公告)号: US07830339B2公开(公告)日: 2010-11-09
- 发明人: Hideaki Yui
- 申请人: Hideaki Yui
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Fitzpatrick, Cella, Harper & Scinto
- 优先权: JP2004-365533 20041217; JP2005-358829 20051213
- 主分类号: G09G3/20
- IPC分类号: G09G3/20 ; G09G3/22
摘要:
An image display apparatus includes a rear plate having electron-emitting devices, a face plate having light-emitting regions, a spacer arranged between the rear plate and the face plate, and a drive circuit having a correction circuit which corrects input image data. A quantity of light emitted from an object light-emitting region depends on the quantity of electrons coming from a corresponding object electron-emitting device and coming from peripheral light-emitting regions of the object light-emitting region, and the quantity of light emitted from the object light-emitting region decreases when at least some of the emitted electrons are blocked by the spacer. The correction circuit includes a first circuit that calculates a value equivalent to the decrease in the quantity of light emitted from the object light-emitting region due to the blocked electrons, a second circuit that calculates a correction value by multiplying the value equivalent to the decrease in the quantity of light by an adjustment gain value that complies with a color of the object light-emitting region, and a third circuit that adds the correction value to the input image data of the object electron-emitting device.
公开/授权文献
- US20060132396A1 IMAGE DISPLAY APPARATUS 公开/授权日:2006-06-22
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