Color cathode ray tube having improved arrangement of electron beams
AssigneeNEC Corporation
InventorToshiyuki Tanaka
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Abstract
The color cathode ray tube disclosed herein includes an in-line electron gun from which three electron beams are generated for displaying red, green and blue colors, respectively. The central electron beam (1B) is used to allow a blue fluorescent material to shine, whereas the electron beams (1R and 1G) or both sides are used to allow a red fluorescent material (3R) and a green fluorescent material (3G) to shine, respectively. The diameters of apertures (4R) and (4G) on both sides of an inner electrode (4) are preferably larger than that of the central aperture (4B).
Claims5
A color cathode ray tube comprising an in-line electron gun generating three electron beams, a central one of said three electron beams being used for displaying a blue color, and remaining ones of said three electron beams being used for displaying red and green colors, respectively.
Dependencies are inferred from the claim text.