What does the clarity of a computer monitor screen depend on?

The clarity of the computer monitor screen is determined by the "resolution" of the monitor. Since the points, lines and surfaces on the screen are all composed of pixels, the more pixels the monitor can display, the more detailed the picture will be, and the more information can be displayed in the screen area, so resolution is a very important performance indicator. ; When the display size is fixed, the higher the display resolution, the clearer the image.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The clarity of the computer monitor screen is determined by the "resolution" of the monitor.

The resolution of the monitor, referred to as display resolution (screen resolution), is the resolution of the monitor when displaying images. It is the precision of the screen image. It refers to the number of pixels that the monitor can display. How many. Resolution is measured in dots, and the "dots" on the display refer to pixels. The numerical value of display resolution refers to the number of horizontal and vertical pixels in the entire viewing area of ​​the display. For example, a resolution of 800×600 means that 800 pixels are displayed horizontally and 600 pixels are displayed vertically on the entire screen.

Since the points, lines and surfaces on the screen are all composed of pixels, the more pixels the monitor can display, the finer the picture, and the more information can be displayed in the same screen area, so the resolution Rate is a very important performance indicator. The entire image can be imagined as a large chessboard, and the resolution is represented by the number of intersections of all longitude and latitude lines. When the display resolution is constant, the smaller the display screen, the clearer the image. On the contrary, when the display screen size is fixed, the higher the display resolution, the clearer the image.

The total number of horizontal pixels and vertical pixels of the display resolution is always in a certain ratio, usually 4:3, 5:4 or 8:5. Each monitor has its own maximum resolution and is compatible with other lower display resolutions, so a monitor can display multiple different resolutions. Although the higher the display resolution, the better, but there is another factor to consider, which is whether the human eye can recognize it. For example, on a 14-inch monitor with a maximum resolution of 1024×768, 800×600 is the highest resolution that the human eye can recognize (we temporarily call it the best resolution). Although the monitor can accurately detect the resolution of 1024×768, display image, but the human eye can no longer accurately identify the screen information.

On the same size screen, the higher the resolution, the smaller the display. Since the size of the monitor varies, and the display resolution represents the number of pixels in all visible ranges, the same resolution has different effects on different monitors, for example: 800×600 resolution, 14 The display accuracy of a 17-inch monitor is much higher than that of a 17-inch monitor with the same resolution.

Explanation:

The resolution determines the fineness of the details of the bitmap image.

Normally, the higher the resolution of the image, the more pixels it contains, the clearer the image, and the better the printing quality. At the same time, it will also increase the storage space occupied by the files.

Extended knowledge:

The resolution of the display is not only constrained by the line frequency, but also related to the video bandwidth of the display. The width of the video bandwidth determines the quality of the video channel in the display, which directly affects the clarity of the displayed image. In fact, resolution, line frequency, and video bandwidth are interdependent and restrictive. If the resolution is high, the line rate tracking range must be wide, and the video bandwidth must be wide. If the first two indicators are high and the video bandwidth is narrow, the displayed horizontal and vertical lines will have different thicknesses. When the video bandwidth is too narrow, the high-frequency components in the image will be seriously lost, and image tailing will occur.

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