A display resolution standard is a commonly used width and height dimension (display resolution) of an electronic visual display device, measured in pixels. This information is used for electronic devices such as a computer monitor. Certain combinations of width and height are standardized (e.g. by VESA) and typically given a name and an initialism which is descriptive of its dimensions. A graphics display resolution can be used in tandem with the size of the graphics display to calculate pixel density. An increase in the pixel density often correlates with a decrease in the size of individual pixels on a display.
The graphics display resolution is also known as the display mode or the video mode. It indicates the number of distinct pixels that can be displayed on a screen, which affects the sharpness and clarity of the image. The graphics display resolution can be controlled by various factors, such as the type of display device, the signal format, the aspect ratio, and the refresh rate. The graphics display resolution can be expressed as a single number (e.g. 1080p), which represents the number of horizontal or vertical pixels, or as two numbers separated by a multiplication sign (e.g. 1920×1080), which represent the width and height in pixels.
The graphics display resolution is influenced by the aspect ratio, which is the ratio of the width to the height of the display. The aspect ratio determines how the image is scaled and stretched to fit the screen. The most common aspect ratios for graphics displays are 4:3, 16:10 (equal to 8/5), 16:9, and 21:9 (equal to 7/3). The aspect ratio also affects the field of view and the perceived size of objects on the screen. Some graphics displays support multiple resolutions and aspect ratios, which can be changed by the user or by the software.
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