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现在常见的显像管分为球面管和纯平管两类。所谓球面是指显像管的荧光屏在水平方向和垂直方向都是弯曲的,相当于从一个球面上截取下来的一块曲面。而纯平显像管无论在水平方向还是垂直方向都是完全平直的,画面几何失真会比球面管小。现在球面管已经基本绝迹了,取而代之的是“平面直角”显像管,所谓平面直角显像管其实并不是真正的平面,只不弯曲程度比球面管小一点,接近于平面,而且四个角都是直角而不是圆角而已,目前市场上除了纯平显示器和液晶显示器外都是这种直角平面显示器。由于它的价格比较便宜,因此在低档机型中被大量采用。 什么是珑管 在纯平显示器大行其道之前,市场上的高端显示器都是柱面的,其中最具代表性的,就是SONY公司的Trinitron(特丽珑)和三菱公司的Diamondtron(钻石珑)。这类显像管
Common CRT now divided into two types of spherical tubes and flat tubes. The so-called spherical refers to the CRT screen in the horizontal and vertical directions are curved, equivalent to a spherical surface cut off from a piece of surface. The flat tube picture tube in both the horizontal and vertical directions are completely flat, the picture geometric distortion will be smaller than the spherical tube. Now spherical tube has been basically extinct, replaced by a “flat right angle” CRT, the so-called planar CRTs are not really the plane, not only bent less than the spherical tube, close to the plane, and the four corners are at right angles and Not fillet it, the current market in addition to flat-panel monitors and liquid crystal displays are outside this rectangular flat-panel display. Because of its cheaper prices, it is widely used in low-end models. What is the long tube Before the popularity of flat screen monitors, the high-end displays on the market are cylindrical, the most representative of which is SONY’s Trinitron and Mitsubishi’s Diamondtron. This type of picture tube