CATHODE-RAY TUBE HAVING IMPROVED 16 X 9 ASPECT RATIO FACEPLATE PANEL

摘要

The present invention provides an improvement in a cathode-ray tube that includes a rectangular faceplate panel having two peripheral long sides and two peripheral short sides, wherein the ratio of length of the long sides to the length of the short sides is approximately 16/9. The tube includes a major axis which parallels the two long sides and a minor axis which parallels the two short sides. A rectangular viewing screen is located on an inner surface of the faceplate panel. The improvement comprises the long sides of the panel having a radius of curvature in a plane of the major and minor axes that is about 7 to 10 times longer than a diagonal dimension of the viewing screen, and the ratio of the radius of curvature of the long sides to the radius of curvature of the short sides being in the range of about 1.6 to 1.9.