Image display apparatus

Details Image display apparatus Image display apparatus

1990-05-03

1991-05-21

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315369, 313422, G09G 104, H01J 2970

Patent

active

050178423

ABSTRACT:
An image display apparatus which controls electron beams emitted from an electron source by electrodes having an arrangement of electron beam passage apertures and displays an image by irradiating the electron beams onto phosphors on a screen. The image display apparatus includes a means which changes at least a position of the electron beam passage aperture of a second electrode of the electrodes corresponding to the electron beam passage aperture of a first electrode of the electrodes in accordance with the position on the screen and controls the potential difference between the two electrodes, thereby making it possible to control the landing position of the electron beams on the screen.

REFERENCES:
patent: 4118651 (1978-10-01), Scott
patent: 4451846 (1984-05-01), Iyehara et al.
patent: 4622497 (1986-11-01), Miyama et al.

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