The clarity of the displayed image mainly depends on what

The image clarity of the monitor mainly depends on the resolution of the monitor.

Resolution can be classified from two directions: display resolution and image resolution. (Recommended Learning: PHPSTORM )

## display resolution (screen resolution) is the precision of the screen image, which refers to how much pixels can be displayed by the display.

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 one of the very important performance indicators.

You can imagine the entire image as a large chessboard, and the resolution is represented by the number of intersections of all longitudes and latitudes.

When the display resolution is fixed, 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.

Image resolution is the number of pixels contained in a unit inch, and its definition is closer to the definition of resolution itself.

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.

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

Generally, 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.

Units

The units used to describe resolution are: dpi (dots per inch), lpi (lines per inch), ppi (pixels per inch) and PPD (PPPixels Per Degree angular resolution, pixels per degree).

But only lpi is a scale that describes optical resolution. Although dpi and ppi are also units within the resolution category, their meanings are different from lpi. Moreover, lpi and dpi cannot be converted and can only be estimated based on experience.

PPD is a parameter for head-mounted cinema, VR glasses, and VR all-in-one products. It can measure the clear feeling of the display screen when users use this type of product.

In addition, ppi and dpi are often used interchangeably. But there are also differences in the fields they use. From a technical point of view, "pixels" only exist in the field of computer display, while "dots" only appear in the field of printing or printing.

The above is the detailed content of The clarity of the displayed image mainly depends on what. For more information, please follow other related articles on the PHP Chinese website!