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目前研制成功的21英寸、19英寸及15英寸、偏转角为90°、管颈为φ22.5毫米的全方形彩色显象管,有如下特征:(1)荧光屏的外曲率半径约为以前管型的两倍,扩大了可视范围并缩小了不必要的外光反射。(2)荧光屏对角线长度比以前管型约增大了一英寸,扩大了图像信息量。(3)采用LAT电子枪,使透镜直径比以前管型(管颈φ22.5毫米,透镜直径φ3.90毫米)增大了约15％,荫罩节距比以前管型精细了5～10％,从而提高了图像的清晰度。(4)改善荧光粉色纯度使再现领域比以前管型约扩大了13％,进一步改善了外光反射约14％。
Currently developed 21-inch, 19-inch and 15-inch deflection angle of 90 °, the neck is φ22.5 mm square full color CRT, has the following characteristics: (1) the screen outer radius of curvature of about the previous tube Double the size, expand the visual range and reduce the unnecessary light reflection. (2) The diagonal length of the screen is about an inch larger than the previous tube type, expanding the amount of image information. (3) The use of LAT electron gun, the lens diameter than the previous tube (neck φ22.5 mm, lens diameter φ3.90 mm) increased by about 15%, mask pitch than the previous tube fine 5 to 10% , Thus improving the clarity of the image. (4) The improvement of phosphor purity led to an increase of about 13% in the area of reproduction compared with the previous tube type, and further improved the external light reflection by about 14%.