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Laptop screens vary in size from 12 inches to 17 inches. A laptop can either be purchased with a dual-scan screen or an active matrix screen.
An active matrix screen costs more than having a dual-scan screen, but it is worth every penny. With a dual-scan screen, the picture quality is not as sharp, and there is a noticeable lag with images displayed on this type of screen. However, an active matrix screen compensates for this lag with a sharper picture quality.