In this case the vertical 1200/1024 is enlarged 1.171875 times, so the image is displayed using 1500 horizontal rows (1280 × 1.171875 = 1500) and 1200 vertical rows of pixels. At that time 640 horizontal rows (1920 – 1280 = 640) and 176 vertical rows (1200 – 1024 = 176) are not lit up so black areas are created at the top, bottom, left and right.Īn enlarged display means that the image to be displayed is enlarged while preserving its "5:4" aspect ratio.
In other words, 1280 horizontal rows and 1024 vertical rows of pixels are used to display it. In normal display (same magnification) the image with a resolution of 1280 × 1024 is displayed with that number of pixels. When a 1280 × 1024 image is displayed on a monitor with a native resolution of 1920 × 1200 Then what happens if an image is displayed in a different resolution from the "native resolution," and in particular what happens if that resolution has a different aspect ratio to the "native resolution"? Let's consider a case where a "1280 × 1024" (horizontal : vertical = 5:4) image is displayed on an LCD monitor with a native resolution of "1920 × 1200" (horizontal : vertical = 16:10). The "number of pixels", or put another way "the number of points that light up", in an LCD screen is decided, and this "number of pixels" is the "native resolution." For example, this means that a monitor with a native resolution of "1920 × 1200" lights up, or turns off, 1920 horizontal rows (dots) and 1200 vertical rows (dots) of pixels to display images. The "native resolution" is written in a monitor's specifications, but what exactly does it mean? What happens if images are displayed at a resolution other than the "native resolution"? In particular, you can't help wondering what happens when an image is displayed in a resolution with a different aspect ratio.
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