显像管技术从黑白到彩色以及目前最优秀的等离子体,历经漫长岁月,日新月异。虽说等离子体平板显示器代表了当今彩电技术中的最高水平,但其价格高昂,老百姓难以接受。因此,玻璃彩管仍是当今彩电最佳终端设备。传统的彩色显像管大都为荫罩式,球面屏幕并具有一定弧度,因此欣赏者在观看节目时就会受到天花板灯光的反射,效果一直不理想。如遇一些垂直型的图像(比如建筑,旗杆等)也会因球型屏幕而变形。这些荫罩式显像管的水平栅条,阻碍了电子束准确射向磷 CRT technology from black and white to color and the best of the current plasma, after a long time, with each passing day. Although the plasma flat panel display represents the highest level of color TV technology today, but its high price, ordinary people unacceptable. Therefore, the glass is still the best color TV terminal equipment. Traditional color CRTs are mostly shadow mask, spherical screen with a certain degree of curvature, so the viewer watching the show will be subject to the ceiling light reflection, the effect has been unsatisfactory. In case of some vertical type of image (such as buildings, flagpoles, etc.) will be deformed due to the dome screen. The horizontal grids of these shadow mask tubes prevent the electron beam from reaching the phosphor correctly