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屏幕尺寸计算
更新时间: 2021-06-07 16:51:02  

1、屏幕尺寸是以屏幕对角线的长度来计量,计量单位为英寸。

2、1英寸公制的2.54厘米,19英寸显示屏对角线长约48厘米。

3、用对角线测量屏幕,源自第一代CRT电视屏幕的测当时大多使用的显示管是圆形的外观,所以自然只需要量直径来区分尺寸。但是要显示的图像矩形,所以就在圆形的显示器上画内接矩形,矩形的对角线就是显示管的直径。

关键词: 屏幕 尺寸 计算

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