| 摘要 |
<p>In a color picture tube, a phosphor screen (2) is formed on an inner face of a face panel, which is formed of a plurality of phosphor lines (17b, 17g, and 17r) in the form of stripes, and a color selecting electrode (5) opposed to the phosphor screen (2) is provided. The color selecting electrode (5) has a plurality of apertures (11) and bridges (15) each separating the adjacent apertures from each other in a direction along the phosphor lines. In the vicinities of shadows (19) of the bridges (15) formed as a result of projection by electron beams, each of light emitting regions in which the phosphor lines emit light by irradiation with the electron beams has a part in which a wide portion (20) of a greater width than a basic width Wb of the light emitting region is provided. Darkening of the phosphor screen can be compensated, which is caused by the shadows of the bridges shading the phosphor lines. Thus, a decrease in the luminance of the phosphor screen and picture noise that are caused by the shadows of the bridges can be suppressed. <IMAGE></p> |
