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许多大屏幕彩电的广告中都称清晰度可达800线,购买者就误认为清晰度比普通彩电高,到底是不是这么一回事呢?我们来看看它的真正含义:“800线清晰度”其实是指彩管屏幕的空间分辨率,而不是图像实际清晰度。所谓屏幕空间分辨率是指彩管荧光屏粉点是间距所决定的最高显示能力,即水平方向的粉点组细数目.例如29英寸的彩管,其屏幕水平有效宽度为592mm。当粉点间距为O.74mm时,若一组粉点显示一条竖直线,则水平方向最多可显示592mm/
Many large-screen color TV ads are said to have a resolution of up to 800 lines, the buyer mistakenly think that higher definition than ordinary color TV, in the end is not the case? We look at its true meaning: “800 lines clear Degree ”is actually refers to the CPT screen spatial resolution, rather than the actual image clarity. The so-called screen spatial resolution refers to the maximum display capacity of the phosphor screen phosphor dots is determined by the pitch, that is, the horizontal direction of the number of fine points, such as 29-inch CPT, the effective horizontal screen width of 592mm. When the powder pitch is 0.74mm, if a group of pink dot shows a vertical line, the horizontal direction can display up to 592mm /