| 摘要 |
<p>A cathode ray tube includes a faceplate panel with an effective screen portion. The effective screen portion of the panel has a horizontal length L and a vertical height H. The aspect ratio L/H of the effective screen portion satisfies the following condition: 4/3 > L/H > 16/9. The effective screen portion of the panel is formed with a normal screen area for displaying picture image, and a separate screen area for displaying graphics or text. The normal screen area has a variable aspect ratio corresponding to an aspect ratio of 4:3 or 16:9 of a picture image to be displayed. <IMAGE></p> |
