Display Resolution

Display Resolution

Display Screen Resolution refers to the number of pixels in the vertical and horizontal directions, and the unit is px. Screen Resolution is the setting that determines how much information is displayed on the computer screen, measured in horizontal and vertical pixels. For a screen of the same size, when the screen Resolution is low (for example, 640 x 480), there are fewer pixels displayed on the screen, and the size of a single pixel is relatively large. When the screen resolution is high (for example, 1600 x 1200), there are many pixels displayed on the screen, and the size of a single pixel is relatively small.
The Display resolution is the number of pixels displayed on the screen. The resolution of 160×128 means that there are 160 pixels in the horizontal direction and 128 pixels in the vertical direction. In the case of the same screen size, the higher the resolution, the finer and more delicate the Display effect.

Dot pitch
The meaning of pixel pitch is similar to the dot pitch of CRT, which generally refers to the distance between two adjacent pixels of the display screen. The picture we see is formed by many dots, and the fineness of the picture quality is determined by the dot pitch. The dot pitch is calculated by dividing the panel size by the resolution. Taking lcd as an example, the visible area of ​​a 14-inch liquid crystal Display is generally 300mm×190mm, and the resolution is 1280×800, so the dot pitch of this lcd is calculated to be 300/1280=0.2344mm or 190/800=0.2375mm. The smaller the dot pitch, the finer the image.

The best resolution of 22 (21.5) and 20 (20.1) inch widescreen lcd monitors with 16:10 ratio is: 1680×1050.

The best resolution of a 16:9 ratio of 23 and 22 (21.5) inch widescreen lcd monitors is 1920×1080.

The refresh rate of the lcd monitor uses the default 60Hz of the operating system, and do not change it (no matter how much the system defaults, do not change it). LCD is not a CRT display. Its inside is not a cathode ray tube, and it does not rely on an electron gun to bombard the phosphor on the picture tube to produce an image.

The LCD Display is passively illuminated by the back lamp tube to illuminate the front liquid crystal panel. There is only a difference between bright and not bright, bright and dark. Therefore, the liquid crystal display does not have the principle of the electron gun progressive and interlaced scanning screen (when the LCD Display is working, each pixel is illuminated from beginning to end, and there is no flicker phenomenon), and there is no concept of refresh frequency. , Refresh frequency has no effect on all LCDs.

The graphics card has an adaptive function to the display. When you plug in the Display, the graphics card will communicate with the display to confirm the best refresh rate and resolution that the Display can Display. Normally, the resolution and refresh that exceed the limit of the Display cannot be set in the system. rate. Some graphics card drivers provide overclocking options, which can artificially set the resolution, rate, and refresh rate beyond the monitor’s specifications, but doing so may cause the monitor to fail to Display.