Abstract: A cathode ray tube (1) has a faceplate panel (3) with a short axis and a long axis. The faceplate panel has a display screen on the inside of the panel and the panel extends back to a funnel (5) which houses an electron gun system within an integral neck (4). The electron gun system produces co-planar beams arranged in a linear array which is parallel to a short axis of the screen (12). A deflection system (14) is positioned over the neck of the funnel for applying electromagnetic control fields to electron beams emanating from the electron gun system directed toward the screen. The deflection system has a first deflection coil system for generating a substantially barrel shaped magnetic field for deflecting the beams in the direction of the long axis and a second deflection coil system for generating a substantially pincushion magnetic field for deflecting the beams in the direction of the short axis.

Abstract: A system for correcting a color characteristic of an image displayed in response to a video signal involves processing the video signal for predicting a variation in a physical characteristic of a display device displaying the image, processing the video signal for determining a change in the color characteristic occurring in response to the variation in the physical characteristic, and modifying the video signal for compensating for the change in the color characteristic.