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    • 22. 发明授权
    • Image display apparatus
    • 图像显示装置
    • US06236381B1
    • 2001-05-22
    • US09198167
    • 1998-11-23
    • Takatsugu KurataMichio OhsugiHironari TaniguchiKoji MatsuoKanji Imai
    • Takatsugu KurataMichio OhsugiHironari TaniguchiKoji MatsuoKanji Imai
    • H01J3112
    • H01J29/467H01J31/125
    • An image display apparatus comprises, in a vacuum container whose inside is kept under vacuum, a fluorescent layer, an electron emission source having a plurality of electron sources, a deflecting electrode to deflect electron beams emitted from the electron emission source, and an ultrafocusing electrode to focus the electron beams and land the focused electron beams on predetermined positions of the fluorescent layer. The ultrafocusing electrode is arranged between the electron emission source and the fluorescent layer while the deflecting electrode is arranged between the electron emission source and the ultrafocusing electrode, so that the fluorescent layer is illuminated by the electron beams. If the landing position of the electron beam is deviated because of errors such as manufacturing errors in assembling the components into the image display apparatus, the deviation is minimized and an image display apparatus with high resolution can be obtained.
    • 图像显示装置在内部保持真空的真空容器中包括荧光层,具有多个电子源的电子发射源,用于偏转从电子发射源发射的电子束的偏转电极和超聚焦电极 聚焦电子束并将聚焦电子束落在荧光层的预定位置上。 超聚焦电极设置在电子发射源和荧光层之间,而偏转电极设置在电子发射源和超聚焦电极之间,使得荧光层被电子束照射。 如果电子束的着陆位置由于诸如将部件组装到图像显示装置中的制造误差等错误而偏移,则偏差最小化,并且可以获得高分辨率的图像显示装置。