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影视图像均是由若干个“点”——像素所组成,而像素的多少决定了画面的清晰程度。像素的数目越多,则画面越清晰。电视屏幕画面上的像素最多不超过52万个。现行的电视接收机无论屏幕尺寸的大与小,其组成画面的“点”的个数是恒定不变的。虽然大电视机采取了一些技术措施,但它绝不会使像素的个数超过极限值。屏幕小,像素小,图像“细腻”;屏幕大,像素大,如不加大观
Video images are composed of a number of “dots ” - pixels, and the number of pixels determines the clarity of the screen. The more the number of pixels, the clearer the picture. The maximum number of pixels on the TV screen is no more than 520,000. The current television receiver regardless of the screen size of large and small, the composition of the screen “dot ” the number is constant. Although the big TV has taken some technical measures, but it will never make the number of pixels exceed the limit. Small screen, small pixels, image “delicate ”; large screen, pixel, such as without increasing the view